Powerful Pacific System Impacting the West; First Significant Snow for Portions of the East

Power Pacific system will continue to bring significant impacts for Pacific Northwest into northern California the remainder of the week. Dangerous coastal affects, heavy rain, flooding, strong winds, and higher elevation mountain snow continues. Meanwhile, a storm across the east is set to bring the first accumulating snow to many higher elevations of the Catskills into the central Appalachians. Read More >

Summary
Snowfall Data
Satellite Imagery
Observations
Wind Gusts
NWS Products

Summary

After a relatively quiet early winter, a dose of reality, in the form of a major, record-setting winter storm, affected all of Oklahoma and western north Texas on January 31-February 1, 2011. Periods of heavy sleet and snow, combined with winds that gusted over 40 mph, disrupted travel and closed hundreds of schools and businesses. Snowfall totals reached over a foot in some places, with snow drifts reaching three to five foot depths. Temperatures plummeted into the single digits and lower teens, and wind chills fell well below zero. In fact, wind chill values fell below -25 degrees over parts of northwestern Oklahoma! Note: this was a wide ranging winter storm, with even higher totals reported in northeastern Oklahoma and continuing northeastward through Missouri, Illinois, and parts of the northeastern United States.

Photo of weather conditions in Okarche, OK during the winter storm on February 1, 2011. Photo taken by and provided courtesy of Dave Ewoldt.

Leading Up the Event:

Looking at the weather several days before the event, one would have thought that these were the final days of winter and that spring would soon begin. Record high temperatures were common over a large area on the 28th and 29th of January, with readings well into the 70s.

Unfortunately, these warm, mild days came to an abrupt end as a strong cold front moved southward over the southern Great Plains on January 30th, reducing high temperatures to 30 to 40 degrees cooler than the previous day. Max temperatures only reached the 20s across northern Oklahoma, with highs in the 30s prevailing across the southern two-thirds of Oklahoma and into north Texas. However, this was a relative heat wave considering what was to occur just two days later.

Late on January 29th, a strong storm system finally moved onshore over southern California. At the same time, an arctic cold front began its trek south through the northern Great Plains, with a 1052 mb surface high pressure building in behind it. Although confidence had increased to a point where forecasters had concluded that a winter event was going to occur over the southern Plains, the timing and strength were still somewhat in question.

With the system now onshore, most of the numerical models had converged onto a solution that a significant winter storm would affect parts of Oklahoma and north Texas. The models indicated that several inches of snow were likely, and would be accompanied by strong northerly winds gusting over 40 mph. Forecaster confidence was high enough now that by a Winter Storm Watch was issued for portions of central, northern, and eastern Oklahoma at 4 AM on the January 30th.

As more data poured in over the next 12 to 18 hours, the Winter Storm Watch was expanded to include all of the WFO Norman, OK county warning area except for two counties in southeastern Oklahoma (Atoka and Bryan were in a Winter Weather Advisory). Counties in central and northern Oklahoma were upgraded to a Blizzard Warning, with the anticipation of 8 or more inches of snow, frequent wind gusts of 40 to 50 mph, and visibilities falling to less than ¼ of a mile.

The Event Begins:

The freezing line at the surface slowly moved south during the day on the January 31st, lying across the northwest half of Oklahoma by sunset and then advancing quickly southeast. At the same time, the storm system was moving through New Mexico with increasing lift out ahead of it.

Regional Weather Conditions at 6:37 pm CST on January 31, 2011

Thunderstorms, some containing heavy sleet, developed over parts of west Texas and moved northeast over northern Texas. By this time, some of precipitation was developing and moving over sub-freezing surface temperatures. The precipitation coverage expanded through the evening hours toward Lawton and Oklahoma City. Periods of heavy thunder-sleet, occasionally mixed with freezing rain and heavy snow, were reported up and down I-44 toward OKC by 10 pm, with a light glaze of ice developing on elevated surfaces, and sleet accumulations of 1 to 2 inches over some areas of central Oklahoma. By 1 AM, temperatures were at or below freezing over all but far southeast Oklahoma.

With the cold air deepening above the surface, the precipitation was falling as snow across western and northwest Oklahoma, with a mixture of sleet and snow over southwest and central Oklahoma, and northern Texas, and freezing rain and sleet over southern Oklahoma. By 4 AM, all but southeast Oklahoma was reporting snow, with moderate to heavy snow bands setting up over western and central Oklahoma. The temperatures also continued to fall, with temperatures ranging from near 10 degrees over northern Oklahoma, to the lower to middle 20s over southeast Oklahoma, and the teens in between.

The Event Continues:

The snowfall was moderate to heavy at times, with some areas from central into northeast Oklahoma reporting snowfall rates of 2-3 inches per hour. By sunrise, around 6 inches of snow had fallen from Norman and Oklahoma City northeast toward Shawnee and Chandler, and the heavy snow continued to fall in parts of central Oklahoma.

Regional Weather Conditions at 8:30 am CST on February 1, 2011

In addition to the snow, the winds gusted at 35 to 45 mph, and temperatures fell into the single digits and lower teens. Rush hour traffic, at least what traffic there was with most schools and businesses closed, was very slow going. Visibilities with the heavy snow and strong winds were falling below ¼ mile, resulting in numerous accidents and stalled automobiles. The wind chills became just as big an issue by this time, with wind chill values falling below -15 degrees.

By mid morning, the heaviest snow bands had pivoted into eastern Oklahoma, but areas of moderate snowfall were still moving east through western and central Oklahoma. These bands still produced snowfall rates of 1 inch per hour over central Oklahoma. The snow finally ended from west to east by early afternoon, but the wind speeds remained strong with frequent gusts over 40 mph still occurring. Even after the snowfall had ended, near blizzard conditions continued through the afternoon, which hindered snow removal on roadways, and slowed rescues from stalled cars and accidents.

After the Event:

By the evening, the temperatures had dropped into the lower single digits over northern Oklahoma and into the lower teens over southeastern Oklahoma. Although the winds had calmed somewhat, wind chill values were still well below zero. In addition to a Wind Chill Advisory, the Oklahoma Department of Emergency Management requested the issuance of a Civil Emergency Message highlighting the dangerous weather conditions for those that had become stranded in their cars and hadn’t been rescued yet. Very little recovery occurred on the February 2nd, as daytime temperatures only rose into the teens. The winds continued to slowly decrease, but wind gusts near 30 mph were still common.

Impacts:

Unfortunately, four deaths were reported as a result of the winter storm, with one death occurring in Moore, and three in Miami, OK. The Oklahoma Highway Patrol reported over 150 automobile accidents statewide, ten of which resulted in injuries. There were also over 460 motorist-related calls, mainly from people that had become stranded in their vehicles. The situation could have been worse, but schools and businesses had closed prior to the beginning of the winter storm, which kept traffic at a minimum for much of the day on February 1st. In addition, the winter storm mainly produced snow and sleet, and freezing rain was less widespread and fell in shorter durations. As a result, ice accumulations were kept at a minimum, reducing the number of power outages across Oklahoma.

Historical Perspective:

Much of the southern Plains had enjoyed a quiet winter up to this point, which made this seem even more significant. There had been a few intrusions of arctic air, but the events were generally short lived and moved off toward the east after a day or two. Precipitation had been almost non-existent, and drought conditions had begun to take hold over parts of central Oklahoma. The liquid equivalent amounts generated by the snowfall totaled between 0.50 inches and 1 inch, and amounted to roughly half of the average February precipitation totals for the region. These precipitation totals should help somewhat to alleviate the D2 drought over central Oklahoma.

The official snowfall observation at Will Rogers World Airport in Oklahoma City was 12.1 inches. Most of the snow fell on the February 1st with when 11.8 inches was recorded, with the other 0.3 inches falling during the late hours of January 31st. The 11.8-inch total broke the calendar day record, which was previously 5.5 inches set in 1913. The total also broke the all-time February daily snowfall record, which was previously 6.5 inches set in 1987.

Looking at the bigger picture, 12.1-inch total tied February 5-7, 1988 for the 2nd highest storm total snowfall. It wasn’t that long ago when Oklahoma City had recorded its greatest storm total snowfall. Just 13 months ago, last minute Christmas shoppers were greeted with a record-setting blizzard that accumulated 13.5 inches of snow. More information regarding this event can be found here. A 3.0-inch total reported at Sheppard Air Force Base in Wichita Falls, TX also tied a record set in 1905 for the most snowfall to occur on February 1st.

Preliminary Storm Total Snowfall Amount Map for the January 31-February 1, 2011 Winter Storm

Snowfall Data

Storm Total Snowfall Map for the Winter Storm of January 31-February 1, 2011

Storm Total Snowfall Amount Map for the January 31-February 1, 2011 Winter Storm

Storm Total Snowfall Amounts for the Winter Storm of January 31-February 1, 2011

The following table contains a list of storm total snowfall amounts for the Winter Storm event of January 31-February 1, 2011. The sources of these data include reports from cooperative observers, CoCoRaHS observers, and local storm reports (LSRs) issued buy NWS Norman during and after the event.

ID	Location	County	State	Source	Storm Total (in.)
GSDO2	Great Salt Plains Dam	Alfalfa	OK	COOP	3.0
HELO2	Helena 1 SSE	Alfalfa	OK	COOP	3.0
ATOO2	Atoka	Atoka	OK	COOP	3.3
	Atoka	Atoka	OK	Public	2.0
DAIO2	Daisy 4 ENE	Atoka	OK	COOP	2.0
MGDO2	McGee Creek Dam	Atoka	OK	COOP	1.0
ERIO2	Erick	Beckham	OK	COOP	1.9
OK-BC-3	Erick 0.2 NE	Beckham	OK	CoCoRaHS	1.9
MRVO2	Moravia 2 NNE	Beckham	OK	COOP	3.0
RETO2	Retrop	Beckham	OK	COOP	1.0
SARO2	Sayre 1 NE	Beckham	OK	COOP	3.0
OK-BC-2	Sayre 5.6 N	Beckham	OK	CoCoRaHS	1.3
OK-BC-4	Sayre 0.7 NE	Beckham	OK	CoCoRaHS	3.0
OK-BC-5	Sayre 5.8 NW	Beckham	OK	CoCoRaHS	0.4
OK-BC-6	Willow 6.5 N	Beckham	OK	CoCoRaHS	1.0
OK-BL-1	Geary 9.8 WNW	Blaine	OK	CoCoRaHS	3.8
WTNO2	Watonga 1 N	Blaine	OK	COOP	2.8
DUAO2	Durant	Bryan	OK	COOP	0.5
OK-CD-11	Anadarko 3.8 E	Caddo	OK	CoCoRaHS	6.5
OK-CD-2	Apache 0.4 W	Caddo	OK	CoCoRaHS	5.9
OK-CN-2	Mustang 2.1 WNW	Canadian	OK	CoCoRaHS	5.5
	Okarche	Canadian	OK	Spotter	7.0
	Yukon 5 NNE	Canadian	OK	Public	8.0
	Yukon	Canadian	OK	Public	8.0
HLDO2	Healdton	Carter	OK	COOP	3.0
OK-CV-10	Hall Park 2.7 S	Cleveland	OK	CoCoRaHS	7.0
OK-CV-58	Hall Park 8.7 ENE	Cleveland	OK	CoCoRaHS	7.5
OK-CV-53	Moore 1.3 ENE	Cleveland	OK	CoCoRaHS	7.1
NOLO2	Noble 2 S	Cleveland	OK	COOP	8.0
NMNO2	Norman 3 SSE	Cleveland	OK	COOP	5.4
OK-CV-12	Norman 3.1 WNW	Cleveland	OK	CoCoRaHS	5.5
OK-CV-34	Norman 9.2 E	Cleveland	OK	CoCoRaHS	6.0
OK-CV-45	Norman 2.7 SW	Cleveland	OK	CoCoRaHS	7.0
OK-CV-6	Norman 7.9 ESE	Cleveland	OK	CoCoRaHS	5.7
OK-CV-67	Norman 2.2 SE	Cleveland	OK	CoCoRaHS	5.2
OK-CV-69	Norman 5.5 ESE	Cleveland	OK	CoCoRaHS	5.9
	Norman 2 S	Cleveland	OK	Public	8.0
	Norman 7 E	Cleveland	OK	Amatuer Radio	7.0
	NW Etowah	Cleveland	OK	NWS	8.0
CENO2	Centrahoma 2 ESE	Coal	OK	COOP	6.0
LEHO2	Lehigh 4 SW	Coal	OK	COOP	3.0
CHAO2	Chattanooga	Comanche	OK	COOP	4.4
OK-CC-3	Lawton 2.4 WNW	Comanche	OK	CoCoRaHS	5.8
	Lawton 4 E	Comanche	OK	Public	6.0
WMWO2	Wichita Mountains WLR	Comanche	OK	COOP	5.0
OK-CT-1	Cookietown 6.3 NNW	Cotton	OK	CoCoRaHS	4.2
WALO2	Walters	Cotton	OK	COOP	4.0
WEAO2	Weatherford	Custer	OK	COOP	4.0
	Leedey	Dewey	OK	EM	2.0
TLGO2	Taloga	Dewey	OK	COOP	2.0
ARNO2	Arnett 3 NE	Ellis	OK	COOP	2.0
FARO2	Fargo	Ellis	OK	COOP	T
OK-EL-3	Shattuck 0.7 SSW	Ellis	OK	CoCoRaHS	1.0
ENIO2	Enid 2 ENE	Garfield	OK	COOP	3.2
OK-GD-10	Enid 1.3 E	Garfield	OK	CoCoRaHS	4.0
OK-GD-11	Enid 3.1 WSW	Garfield	OK	CoCoRaHS	5.0
OK-GD-7	Enid 3.6 WNW	Garfield	OK	CoCoRaHS	4.5
	Enid	Garfield	OK	EM	4.0
	Enid 4 SSW	Garfield	OK	Federal	5.0
	Elmore City 1 N	Garvin	OK	Public	8.0
OK-GY-1	Blanchard 1.8 SW	Grady	OK	CoCoRaHS	5.5
JEFO2	Jefferson	Grant	OK	COOP	2.0
LAMO2	Lamont	Grant	OK	COOP	4.0
MEDO2	Medford	Grant	OK	COOP	2.0
MGUO2	Mangum	Greer	OK	COOP	2.0
OK-GR-2	Mangum 0.5 ESE	Greer	OK	CoCoRaHS	1.0
WILO2	Willow	Greer	OK	COOP	1.0
HOSO2	Hollis 5 E	Harmon	OK	COOP	1.5
BFLO2	Buffalo 2 SSW	Harper	OK	COOP	2.0
	Holdenville 3 SW	Hughes	OK	Public	6.0
GRDO2	Grady 2 E	Jefferson	OK	COOP	2.0
LOCO2	Loco	Jefferson	OK	COOP	7.0
	Waurika	Jefferson	OK	LEO	3.0
BLAO2	Blackwell	Kay	OK	COOP	7.0
BRMO2	Braman	Kay	OK	COOP	8.0
NWKO2	Newkirk 1 NW	Kay	OK	COOP	5.2
OK-KY-7	Newkirk 0.3 W	Kay	OK	CoCoRaHS	7.0
PCCO2	Ponca City 2 NW	Kay	OK	COOP	8.1
	Ponca City	Kay	OK	COOP	3.0
HSYO2	Hennessey 4 ESE	Kingfisher	OK	COOP	3.0
KINO2	Kingfisher	Kingfisher	OK	COOP	7.0
ATUO2	Altus-Lugert Dam	Kiowa	OK	COOP	1.9
RSVO2	Roosevelt	Kiowa	OK	COOP	3.0
MTVO2	Sedan	Kiowa	OK	COOP	3.0
MKRO2	Meeker 4 W	Lincoln	OK	COOP	4.0
CREO2	Crescent 5 WSW	Logan	OK	COOP	7.0
OK-LG-3	Edmond 4.3 NNE	Logan	OK	CoCoRaHS	10.0
GUTO2	Guthrie 5 S	Logan	OK	COOP	4.2
OK-LG-2	Guthrie 1.9 S	Logan	OK	CoCoRaHS	7.0
OK-LG-4	Guthrie 4.9 SSE	Logan	OK	CoCoRaHS	11.5
OK-LG-6	Guthrie 3.7 NNW	Logan	OK	CoCoRaHS	5.0
	Guthrie 5 S	Logan	OK	COOP	6.0
MSHO2	Marshall	Logan	OK	COOP	4.3
	Mulhall	Logan	OK	COOP	4.0
ORIO2	Orienta	Major	OK	COOP	2.0
MADO2	Madill	Marshall	OK	COOP	4.0
BLNO2	Blanchard 2 SSW	McClain	OK	COOP	7.5
OK-MC-2	Blanchard 2.1 ESE	McClain	OK	CoCoRaHS	6.0
	Newcastle	McClain	OK	EM	3.0
OK-MC-5	Purcell 6.7 W	McClain	OK	CoCoRaHS	6.0
	Sulphur	Murray	OK	Public	8.0
SULO2	Sulphur 1S	Murray	OK	COOP	8.8
BILO2	Billings	Noble	OK	COOP	5.0
OK-OK-5	Bethany 0.7 SSW	Oklahoma	OK	CoCoRaHS	8.4
OK-OK-25	Edmond 8.0 WNW	Oklahoma	OK	CoCoRaHS	8.0
OK-OK-3	Edmond 1.6 W	Oklahoma	OK	CoCoRaHS	8.0
OK-OK-31	Edmond 6.6 W	Oklahoma	OK	CoCoRaHS	10.0
OKCO2	Oklahoma City 6 S	Oklahoma	OK	COOP	12.1
	Oklahoma City 3 NW	Oklahoma	OK	Public	9.0
CUSO2	Cushing	Payne	OK	COOP	9.0
INGO2	Ingalls	Payne	OK	COOP	5.7
STWO2	Stillwater 2 W	Payne	OK	COOP	8.4
OK-PN-6	Ada 0.3 NNW	Pontotoc	OK	CoCoRaHS	7.5
	Ada	Pontotoc	OK	Public	9.0
	Asher	Pottawatomie	OK	Amatuer Radio	3.0
SHAO2	Shawnee 2 NE	Pottawatomie	OK	COOP	9.0
OK-PT-6	Shawnee 1.9 ENE	Pottawatomie	OK	CoCoRaHS	8.0
	Shawnee	Pottawatomie	OK	Public	12.0
SEMO2	Seminole	Seminole	OK	COOP	8.0
DCNO2	Duncan 9 W	Stephens	OK	COOP	5.5
DNCO2	Duncan	Stephens	OK	COOP	5.0
OK-ST-4	Loco 0.9 SE	Stephens	OK	CoCoRaHS	8.1
MLWO2	Marlow 1 WSW	Stephens	OK	COOP	5.0
OK-TN-2	Frederick 6.0 SSW	Tillman	OK	CoCoRaHS	3.0
HEDO2	Headrick	Tillman	OK	COOP	4.0
OK-WH-5	Burns Flat 0.2 S	Washita	OK	CoCoRaHS	2.0
CNYO2	Colony	Washita	OK	COOP	3.0
OK-WH-4	Cordell 0.8 SW	Washita	OK	CoCoRaHS	1.0
ALVO2	Alva 1 W	Woods	OK	COOP	4.0
FREO2	Freedom	Woods	OK	COOP	2.0
WAYO2	Waynoka	Woods	OK	COOP	2.0
FSYO2	Fort Supply 3 SE	Woodward	OK	COOP	1.0
MUTO2	Mutual	Woodward	OK	COOP	2.5
WOOO2	Woodward 1 NE	Woodward	OK	COOP	2.0
DDET2	Dundee 6 NNW	Archer	TX	COOP	2.0
SCOT2	Scotland	Archer	TX	COOP	4.0
CWLT2	Crowell	Foard	TX	COOP	3.0
BBUT2	Burkburnett	Wichita	TX	COOP	3.0
	Wichita Falls	Wichita	TX	LSR	6.0
TX-WT-8	Wichita Falls 2.2 S	Wichita	TX	CoCoRaHS	7.0
	Wichita Falls	Wichita	TX	Media	6.0

Summary of Local Storm Reports for the Winter Storm of January 31-February 1, 2011

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NORMAN OK
849 AM CST WED FEB 02 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 AM     FREEZING RAIN    4 E LAWTON              34.60N 98.35W
02/01/2011  E0.20 INCH       COMANCHE           OK   PUBLIC

0154 AM     SLEET            SULPHUR                 34.51N 96.98W
02/01/2011  E2.00 INCH       MURRAY             OK   PUBLIC

            SLEET CONTINUING TO FALL.

0259 AM     HEAVY SNOW       PINK                    35.26N 97.12W
02/01/2011  E0.0 INCH        POTTAWATOMIE       OK   PUBLIC

            ESTIMATED 2 TO 3 INCHES OF SNOW ONE HOUR COMBINED WITH A
            COUPLE INCHES OF SLEET.

0300 AM     SNOW             WILL ROGERS AIRPORT     35.39N 97.60W
02/01/2011  M2.0 INCH        OKLAHOMA           OK   OFFICIAL NWS OBS

0310 AM     SNOW             WAURIKA                 34.17N 98.00W
02/01/2011  E3.0 INCH        JEFFERSON          OK   LAW ENFORCEMENT

0345 AM     SNOW             WICHITA FALLS           33.91N 98.50W
02/01/2011  E3.0 INCH        WICHITA            TX   BROADCAST MEDIA

            US287 IN WESTERN WICHITA COUNTY CLOSED DUE TO AN ACCIDENT
            INVOLVING A SEMI. THUNDER-SNOW/SLEET OBSERVED. SNOW
            DRIFTS TO 1.5 FEET. A FEW POWER OUTAGES REPORTED. REPORTS
            FROM KFDX-TV3.

0410 AM     SNOW             WICHITA FALLS           33.91N 98.50W
02/01/2011  E6.0 INCH        WICHITA            TX   BROADCAST MEDIA

            5-6 INCHES IN THE SW PART OF THE CITY. DRIFTS TO AT LEAST
            1.5 FEET.

0545 AM     SNOW             NEWCASTLE               35.25N 97.60W
02/01/2011  M2.0 INCH        MCCLAIN            OK   EMERGENCY MNGR

            DRIFTS TO 1 FOOT.

0600 AM     SNOW             WILL ROGERS AIRPORT     35.39N 97.60W
02/01/2011  M6.0 INCH        OKLAHOMA           OK   OFFICIAL NWS OBS

            2 INCHES IN THE PAST ONE HOUR.

0610 AM     SNOW             PONCA CITY              36.71N 97.09W
02/01/2011  M3.0 INCH        KAY                OK   CO-OP OBSERVER

            3 INCHES IN 2 HOURS.

0615 AM     SNOW             ASHER                   34.99N 96.92W
02/01/2011  E3.0 INCH        POTTAWATOMIE       OK   AMATEUR RADIO

            2 TO 3 INCHES OF SNOW ON TOP OF 1 TO 2 INCHES OF SLEET.
            CITY STREETS ALMOST IMPASSIBLE DUE TO DRIFTING. MODERATE
            SNOW CONTINUING.

0615 AM     SNOW             ENID                    36.40N 97.88W
02/01/2011  E2.0 INCH        GARFIELD           OK   AMATEUR RADIO

0620 AM     SLEET            COALGATE                34.53N 96.22W
02/01/2011  E0.50 INCH       COAL               OK   EMERGENCY MNGR

            SLEET AND SOME GLAZE.

0630 AM     HEAVY SNOW       NORMAN                  35.22N 97.44W
02/01/2011  E5.0 INCH        CLEVELAND          OK   PUBLIC

            1 TO 2 FOOT DRIFTS.

0640 AM     SNOW             ATOKA                   34.38N 96.13W
02/01/2011  E2.0 INCH        ATOKA              OK   PUBLIC

            SNOW ON TOP OF AN ADDITIONAL ONE INCH OF FREEZING RAIN
            AND SLEET. SNOW CONTINUING AT OBSERVATION TIME.

0657 AM     HEAVY SNOW       WILL ROGERS AIRPORT     35.39N 97.60W
02/01/2011  M7.0 INCH        OKLAHOMA           OK   OFFICIAL NWS OBS

            HEAVY SNOW AND BLOWING SNOW CONTINUING.

0715 AM     SNOW             NORMAN                  35.22N 97.44W
02/01/2011  E2.5 INCH        CLEVELAND          OK   NWS EMPLOYEE

            NORTH NORMAN.

0715 AM     SNOW             ENID                    36.40N 97.88W
02/01/2011  E4.0 INCH        GARFIELD           OK   EMERGENCY MNGR

            1 TO 3 FOOT DRIFTS.

0715 AM     SNOW             NEWCASTLE               35.25N 97.60W
02/01/2011  E3.0 INCH        MCCLAIN            OK   EMERGENCY MNGR

            ONE FOOT DRIFTS.

0805 AM     SNOW             NW ETOWAH               35.13N 97.17W
02/01/2011  E8.0 INCH        CLEVELAND          OK   NWS EMPLOYEE

0805 AM     SNOW             PONCA CITY              36.70N 97.08W
02/01/2011  E6.7 INCH        KAY                OK   CO-OP OBSERVER

0819 AM     SNOW             BRAMAN                  36.92N 97.33W
02/01/2011  E8.0 INCH        KAY                OK   CO-OP OBSERVER

            3 TO 4 FOOT DRIFTS.

0819 AM     SNOW             LEEDEY                  35.87N 99.35W
02/01/2011  E2.0 INCH        DEWEY              OK   EMERGENCY MNGR

0831 AM     HEAVY SNOW       MARLOW                  34.64N 97.96W
02/01/2011  M5.0 INCH        STEPHENS           OK   CO-OP OBSERVER

            5 INCHES OF SLEET AND SNOW REPORTED BY OBSERVER

0931 AM     HEAVY SNOW       4 SW LEHIGH             34.43N 96.27W
02/01/2011  M3.0 INCH        COAL               OK   CO-OP OBSERVER

            OBSERVER REPORTED 3 INCHES OF SLEET AND SNOW WITH ICE
            ACCUMULATION ON VEGETATION.

0932 AM     SNOW             YUKON                   35.50N 97.74W
02/01/2011  E8.0 INCH        CANADIAN           OK   PUBLIC

0936 AM     SNOW             MULHALL                 36.06N 97.40W
02/01/2011  E4.0 INCH        LOGAN              OK   CO-OP OBSERVER

0955 AM     NON-TSTM WND GST MEDICINE PARK           34.73N 98.50W
02/01/2011  M60.00 MPH       COMANCHE           OK   MESONET

            MEDICINE PARK MESONET DETECTED A 60 MPH WIND GUST.

0955 AM     NON-TSTM WND GST MINCO                   35.32N 97.95W
02/01/2011  M58.00 MPH       GRADY              OK   MESONET

            MINCO MESONET DETECTED A 58 MPH WIND GUST.

1031 AM     BLIZZARD         PERKINS                 35.98N 97.03W
02/01/2011                   PAYNE              OK   EMERGENCY MNGR

            6-8 INCHES OF SNOW WITH LOCAL AMOUNTS AROUND 10 INCHES.
            WHITEOUT CONDITIONS PRESENT.

1115 AM     HEAVY SNOW       SULPHUR                 34.51N 96.98W
02/01/2011  M8.0 INCH        MURRAY             OK   STORM CHASER

            W SIDE OF SULPHUR.

1155 AM     HEAVY SNOW       4 SSW ENID              36.35N 97.90W
02/01/2011  M5.0 INCH        GARFIELD           OK   OTHER FEDERAL

            OBSERVED AT VANCE AFB.

1230 PM     HEAVY SNOW       5 S GUTHRIE             35.81N 97.43W
02/01/2011  M6.0 INCH        LOGAN              OK   CO-OP OBSERVER

1230 PM     HEAVY SNOW       3 NW OKLAHOMA CITY      35.50N 97.55W
02/01/2011  E9.0 INCH        OKLAHOMA           OK   PUBLIC

            DRIFTS TO ABOUT 2 FEET. 30TH AND VILLA.

0100 PM     HEAVY SNOW       SHAWNEE                 35.34N 96.92W
02/01/2011  E12.0 INCH       POTTAWATOMIE       OK   PUBLIC

            MORE THAN 14 INCHES E SIDES OF SHAWNEE

0145 PM     HEAVY SNOW       1 N ELMORE CITY         34.64N 97.40W
02/01/2011  E8.0 INCH        GARVIN             OK   PUBLIC

            7.5 INCHES OF SNOW INCLUDES 1.5 INCHES SLEET. DRIFTS TO
            ALMOST 5 FEET.

0148 PM     HEAVY SNOW       4 E LAWTON              34.60N 98.35W
02/01/2011  E6.0 INCH        COMANCHE           OK   PUBLIC

            DRIFTS TO 10 INCHES.

0213 PM     HEAVY SNOW       2 S NORMAN              35.19N 97.44W
02/01/2011  M8.0 INCH        CLEVELAND          OK   PUBLIC

            SOUTH-CENTRAL NORMAN.

0230 PM     HEAVY SNOW       OKARCHE                 35.73N 97.98W
02/01/2011  M7.0 INCH        CANADIAN           OK   TRAINED SPOTTER

            7.1 INCHES MIDNIGHT TO 2PM. DRIFTS 3 TO 5 FEET.

0315 PM     SNOW             ADA                     34.77N 96.68W
02/01/2011  E9.0 INCH        PONTOTOC           OK   STORM CHASER

0315 PM     SNOW             5 NNE YUKON             35.56N 97.71W
02/01/2011  M8.0 INCH        CANADIAN           OK   PUBLIC

0415 PM     SNOW             7 E NORMAN              35.22N 97.32W
02/01/2011  M7.0 INCH        CLEVELAND          OK   AMATEUR RADIO

            ALSO RECEIVED 1/4 TO 1/2 INCH DIAMETER HAIL WITH
            THUNDERSTORM ACTIVITY MONDAY EVENING, JAN 31.

0500 PM     SNOW             3 SW HOLDENVILLE        35.05N 96.44W
02/01/2011  E6.0 INCH        HUGHES             OK   PUBLIC


&&

$$

EM

Satellite Imagery

Water Vapor Loop for February 1-2, 2011

Observations

Many surface observation sites across the area recorded some impressive wind gusts, visibility reductions, and snow rates during the blizzard. We have provided a listing of hourly, and interesting intermediate observations, for both Oklahoma City (KOKC) and Wichita Falls (KSPS) during the event below. Observations that meet blizzard criteria with both winds (35 mph frequent gusts or sustained) and visibility (1/4 mile or less) will have the "weather" cell highlighted in pink.

Oklahoma City (OKC) : January 31-February 1, 2011
Time (CST)	Temp (F)	Dew (F)	Wind (mph)	Peak Gst (mph)	Vsby (mi)	Snow Depth (in.)	Weather
5:52 PM	32	23	21	-	10.0		Overcast
6:52 PM	30	21	20	30	10.0		Overcast
7:52 PM	28	19	23	30	10.0		Overcast
8:52 PM	27	19	25	32	10.0		Overcast
9:09 PM	27	19	21	33	10.0		Light Freezing Rain
9:33 PM	27	19	25	32	7.0		Thunderstorm/Sleet
9:52 PM	26	19	20	31	5.0		Thunderstorm/Sleet
10:52 PM	22	16	31	36	3.0		Sleet
11:52 PM	19	14	27	36	4.0		Sleet
12:18 AM	18	12	30	37	0.5		Snow
12:52 AM	17	13	31	40	0.5		Snow
1:52 AM	18	10	31	38	1.5		Light Snow
2:15 AM	16	10	35	43	0.2		Heavy Snow
2:52 AM	15	10	33	41	0.1	2	Heavy Snow
3:52 AM	14	9	29	35	0.1	3	Heavy Snow
4:52 AM	12	8	29	35	0.1	4	Heavy Snow
5:52 AM	11	6	30	38	0.2	6	Heavy Snow
6:52 AM	10	5	31	37	0.1	7	Heavy Snow
7:52 AM	9	4	33	43	0.1		Heavy Snow
8:52 AM	9	4	40	47	0.2	8	Heavy Snow
9:52 AM	8	3	28	51	0.1	10	Heavy Snow
10:52 AM	8	3	33	48	0.1	11	Heavy Snow
11:52 AM	8	3	35	45	0.1	12	Heavy Snow
12:18 PM	9	3	31	47	0.1		Heavy Snow
12:52 PM	9	3	39	46	0.2		Blowing Snow
1:52 PM	10	3	35	45	0.8		Blowing Snow
2:52 PM	10	3	35	48	0.5		Blowing Snow
3:52 PM	10	3	32	43	0.5		Blowing Snow
4:52 PM	10	4	32	39	1.0		Blowing Snow
5:52 PM	10	5	27	36	1.0		Blowing Snow
6:52 PM	10	5	27	35	2.0		Blowing Snow
7:52 PM	10	4	28	35	5.0		Blowing Snow

Oklahoma City fell below freezing by 6:00 PM on January 31 (Monday), and precipitation started around 10:00 PM in the form of sleet. This initial precipitation was convective in nature, with thunder reported in the 9:52 PM observation. The sleet quickly changed to snow by midnight and became heavy by 3:00 AM Tuesday, which continued until noon. During this time, north winds increased in speed as low pressure deepened in east Texas. Sustained winds over 30 mph persisted during the snow, with frequent gusts to 45-50 mph. Blizzard conditions occurred on three different observations (they were not consecutive, however).

Wichita Falls (SPS) : January 31-February 1, 2011
Time (CST)	Temp (F)	Dew (F)	Wind (mph)	Peak Gst (mph)	Vsby (mi)	Snow Depth (in.)	Weather
8:52 PM	31	26	24	33	9.0		Light Rain
9:52 PM	28	25	29	40	2.5		Light Freezing Rain
10:08 PM	28	25	23	31	2.5		Light Snow
10:52 PM	27	26	32	38	2.5		Overcast
11:52 PM	25	21	28	40	8.0		Overcast
12:52 AM	23	19	28	36	4.0		Light Snow
1:52 AM	19	18	29	38	0.5		Snow
2:52 AM	18	16	24	-	0.2		Light Snow
3:52 AM	17	15	23	-	0.5		Light Snow
4:52 AM	15	13	28	35	0.5		Light Snow
5:52 AM	14	10	31	39	0.8		Light Snow
6:52 AM	13	10	25	35	1.2		Light Snow
7:52 AM	12	9	31	41	0.5		Light Snow
8:52 AM	12	8	25	36	1.0		Blowing Snow
9:52 AM	12	7	31	41	1.0		Blowing Snow

Wichita Falls fell below freezing by 10:00 PM on January 31 (Monday), right as precipitation began to fall in the form of freezing rain. The freezing rain quickly began to mix with sleet and snow, finally changing to all snow by 1:00 AM on Tuesday. Overall, the storm was a bit less severe at Wichita Falls than at Oklahoma City. The snow lasted only until 8:00 AM, and was light to moderate for the storm's duration. The winds, while still strong, were generally sustained in the 25-30 mph range with gusts of 35-40 mph. Blizzard conditions did not occur at Wichita Falls.

Wind Gusts

The map below is a collection of peak wind gusts taken from ASOS (Automated Surface Observing System) sites and Oklahoma Mesonet sites from the winter storm on February 1, 2011. Several sites had incomplete records likely due to icing, or a combination of icing and strong winds during the event.

Peak Wind Gusts Associated with the Winter Storm of January 31-February 1, 2011

NWS Products

Area Forecast Discussions
1/25 1425	1/25 1714	1/26 0413	1/26 0535	1/26 1101	1/26 1108	1/26 1437	1/26 2324
1/27 0429	1/27 1113	1/27 1112	1/27 1538	1/27 2130	1/27 2251	1/28 0410	1/28 0530
1/28 1106	1/28 1111	1/28 1445	1/28 1727	1/28 2134	1/29 0449	1/29 0547	1/29 0949
1/29 1037	1/29 1520	1/29 1754	1/19 2129	1/30 0422	1/30 0547	1/30 1009	1/30 1148
1/30 1432	1/30 1754	1/30 2148	1/31 0412	1/31 0547	1/31 1139	1/31 1546	1/31 1733
1/31 2345	2/01 0425	2/01 0556	2/01 1047	2/01 1145	2/01 1549	2/01 1738	2/01 2111
2/01 2344
Hazardous Weather Outlooks
1/27 0501	1/27 1148	1/28 0451	1/28 1258	1/29 0442	1/29 1158	1/29 2157	1/30 0809
1/30 1200	1/31 0001	1/31 0447	1/31 0842	1/31 1159	2/01 0453	2/01 1335	2/01 1747
2/02 0457	2/02 1135
Winter Weather Messages
1/30 0346	1/30 1508	1/30 1615	1/30 2158	1/31 0417	1/31 1204	1/31 1545	2/01 0455
2/01 1121	2/01 1505	2/02 0424	2/02 0906	2/03 0108	2/03 0343
Special Weather Statements
1/28 1026	1/28 1804	1/28 1811	1/29 0652	1/29 1557

Record Event Reports (RER)

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE NORMAN OK
401 PM CST SAT JAN 29 2010

...RECORD MAXIMUM TEMPERATURE TIED AT OKLAHOMA CITY TODAY...

THE MAXIMUM TEMPERATURE AT WILL ROGERS WORLD AIRPORT IN OKLAHOMA 
CITY REACHED 76 DEGEES TODAY. THIS TIES THE RECORD FOR THE WARMEST 
TEMPERATURE FOR THIS DATE IN OKLAHOMA CITY. THE RECORD WAS PREVIOUSLY
REACHED IN 1911. IF THE TEMPERATURE RISES ABOVE 76 DEGREES, THIS
PRODUCT WILL BE UPDATED.

TEMPERATURE RECORDS FOR OKLAHOMA CITY DATE BACK TO 1890.

$$

Civil Emergency Messages (CEM)

BULLETIN - EAS ACTIVATION REQUESTED
CIVIL EMERGENCY MESSAGE
OKLAHOMA DEPARTMENT OF EMERGENCY MANAGEMENT
RELAYED BY NATIONAL WEATHER SERVICE NORMAN OK
745 PM CST TUE FEB 1 2011

THE FOLLOWING MESSAGE IS BEING TRANSMITTED AT THE REQUEST OF THE 
OKLAHOMA DEPARTMENT OF EMERGENCY MANAGEMENT.

THIS IS A CIVIL EMERGENCY MESSAGE FOR ANYONE STRANDED IN THEIR 
VEHICLE WHO NEEDS HELP DUE TO TODAYS WINTER STORM.  IN ORDER TO 
ENSURE AUTHORITIES ARE AWARE OF YOUR LOCATION CALL 9 1 1, STAR 55... 
OR 1 800 800 2481... ONCE AGAIN... 9 1 1.. STAR 55... OR 1 800 800 
2481.  TELL THE OPERATOR YOUR LOCATION... INCLUDING HIGHWAY MILE 
MARKER ALONG WITH VEHICLE MAKE AND THE NUMBER OF PEOPLE IN YOUR 
CAR.  THIS WILL ASSIST EMERGENCY PERSONNEL IN FINDING YOU.  IF YOU 
ARE STRANDED... IT IS IMPERATIVE THAT YOU STAY WITH YOUR VEHICLE.  
CONSERVE FUEL... USE ONLY ENOUGH TO STAY WARM.  USE HAZARD LIGHTS 
PERIODICALLY.  CHECK EXHAUST PIPE REGULARLY TO ENSURE IT IS NOT 
BLOCKED BY SNOW OR OTHER DEBRIS IN ORDER TO DECREASE THE RISK OF 
CARBON MONOXIDE POISONING.  TIE A COLORED CLOTH TO YOUR VEHICLES 
ANTENNA IF POSSIBLE TO HELP FIRST RESPONDERS IN LOCATING YOU.  IF 
YOU ARE ON TWITTER YOU CAN TWEET THE ABOVE INFORMATION TO... AT O K 
E M... ONCE AGAIN THATS... AT O K E M. YOU CAN ALSO TEXT A FAMILY 
MEMBER AND HAVE THEM RELAY YOUR LOCATION TO ONE OF THE ABOVE NUMBERS.

$$

Area Forecast Discussions (AFD)

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
225 PM CST TUE JAN 25 2011

.DISCUSSION...
A COUPLE MORE WEAK COLD FRONTS WILL AFFECT THE FA THIS WEEK. THESE 
FRONTS WILL HAVE VERY LITTLE IMPACT ON THE AREA. THE FIRST WEAK 
FRONT WILL MOVE ACROSS THE AREA LATE TONIGHT/WEDNESDAY AS A MID LVL 
DISTURBANCE MOVES FROM THE CENTRAL ROCKIES INTO THE SOUTHERN PLAINS. 
NO PRECIP IS EXPECTED WITH THIS FRONT AND DISTURBANCE. IN FACT THE 
ONLY IMPACTS EXPECTED ARE A WIND SHIFT TO THE NORTH AND HAMPERING 
ANY MAJOR WARM-UP WEDNESDAY. WARMER TEMPERATURES ARE EXPECTED 
THURSDAY AND FRIDAY WITH HIGHS IN THE 60S AT MANY LOCATIONS BOTH 
DAYS. THE WILDFIRE POTENTIAL WILL INCREASE LATE IN THE WORK WEEK DUE 
TO THE WARM TEMPS AND LOW RH BUT WINDS ARE EXPECTED TO REMAIN BELOW 
RED FLAG CRITERIA. THE SECOND MENTIONED WEAK COLD FRONT WILL MOVE 
INTO AND ACROSS PARTS OF THE FA FRIDAY NIGHT AND SATURDAY. THIS 
FRONT WILL COOL TEMPERATURES SOME SATURDAY COMPARED TO THE LATTER 
HALF OF THE WORK WEEK BUT STILL REMAIN WELL ABOVE NORMAL WITH TEMPS 
IN THE 50S AND LOW 60S. 

COOLER TEMPS...CLOSER TO NORMAL... WILL BE POSSIBLE SUNDAY. 
PRECIPITATION WILL ALSO BE POSSIBLE SUNDAY AND SUNDAY NIGHT IN SOUTH 
AND EASTERN PORTIONS OF THE FA... AS A DISTURBANCE MOVES ACROSS 
TEXAS. IT IS AROUND THIS TIME THAT THE GFS AND ECMWF BEGIN TO 
DIVERGE. THE ECMWF HAS A STRONG SURGE OF ARCTIC AIR MOVING INTO THE 
REGION SUNDAY NIGHT AND MONDAY WITH PRECIP POSSIBLE. THE PRECIP THEN 
MOVES EAST OF THE AREA MONDAY NIGHT AS UPPER LEVEL DISTURBANCE MOVES 
EAST OF THE FA. MEANWHILE... THE GFS DOES ALSO SHOW SOME COLD AIR 
MOVING IN SUNDAY NIGHT/MONDAY BUT HOLDS MOST OF THE PRECIP WEST OR 
AT LEAST IN WESTERN PORTIONS OF THE FA UNTIL MON NIGHT AND TUES WHEN 
IT FINALLY MOVES EAST ACROSS THE FA AS A DISTURBANCE MOVES EAST 
ACROSS THE SOUTHERN PLAINS. WITH THE DIFFERENCES/INCONSISTENCIES 
HAVE LOW POPS IN THROUGH MONDAY THEN WILL KEEP DRY PAST THAT TIME 
FOR NOW. WITH THE COLD AIR MOVING INTO THE REGION DURING THIS TIME 
FRAME... HAVE A MENTION OF WINTRY PRECIP IN THE FORECAST. 

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  26  47  24  60 /   0   0  10   0 
HOBART OK         25  49  23  61 /   0   0   0   0 
WICHITA FALLS TX  27  55  26  62 /   0   0   0   0 
GAGE OK           19  46  17  61 /   0   0   0   0 
PONCA CITY OK     24  44  21  60 /   0   0   0   0 
DURANT OK         27  55  27  58 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

32/25

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
514 PM CST TUE JAN 25 2011

.AVIATION...
VRF CONDITIONS AND LIGHT WIND ARE EXPECTED THROUGH 262400.

&&

.PREV DISCUSSION... /ISSUED 225 PM CST TUE JAN 25 2011/ 

DISCUSSION...
A COUPLE MORE WEAK COLD FRONTS WILL AFFECT THE FA THIS WEEK. THESE 
FRONTS WILL HAVE VERY LITTLE IMPACT ON THE AREA. THE FIRST WEAK 
FRONT WILL MOVE ACROSS THE AREA LATE TONIGHT/WEDNESDAY AS A MID LVL 
DISTURBANCE MOVES FROM THE CENTRAL ROCKIES INTO THE SOUTHERN PLAINS. 
NO PRECIP IS EXPECTED WITH THIS FRONT AND DISTURBANCE. IN FACT THE 
ONLY IMPACTS EXPECTED ARE A WIND SHIFT TO THE NORTH AND HAMPERING 
ANY MAJOR WARM-UP WEDNESDAY. WARMER TEMPERATURES ARE EXPECTED 
THURSDAY AND FRIDAY WITH HIGHS IN THE 60S AT MANY LOCATIONS BOTH 
DAYS. THE WILDFIRE POTENTIAL WILL INCREASE LATE IN THE WORK WEEK DUE 
TO THE WARM TEMPS AND LOW RH BUT WINDS ARE EXPECTED TO REMAIN BELOW 
RED FLAG CRITERIA. THE SECOND MENTIONED WEAK COLD FRONT WILL MOVE 
INTO AND ACROSS PARTS OF THE FA FRIDAY NIGHT AND SATURDAY. THIS 
FRONT WILL COOL TEMPERATURES SOME SATURDAY COMPARED TO THE LATTER 
HALF OF THE WORK WEEK BUT STILL REMAIN WELL ABOVE NORMAL WITH TEMPS 
IN THE 50S AND LOW 60S. 

COOLER TEMPS...CLOSER TO NORMAL... WILL BE POSSIBLE SUNDAY. 
PRECIPITATION WILL ALSO BE POSSIBLE SUNDAY AND SUNDAY NIGHT IN SOUTH 
AND EASTERN PORTIONS OF THE FA... AS A DISTURBANCE MOVES ACROSS 
TEXAS. IT IS AROUND THIS TIME THAT THE GFS AND ECMWF BEGIN TO 
DIVERGE. THE ECMWF HAS A STRONG SURGE OF ARCTIC AIR MOVING INTO THE 
REGION SUNDAY NIGHT AND MONDAY WITH PRECIP POSSIBLE. THE PRECIP THEN 
MOVES EAST OF THE AREA MONDAY NIGHT AS UPPER LEVEL DISTURBANCE MOVES 
EAST OF THE FA. MEANWHILE... THE GFS DOES ALSO SHOW SOME COLD AIR 
MOVING IN SUNDAY NIGHT/MONDAY BUT HOLDS MOST OF THE PRECIP WEST OR 
AT LEAST IN WESTERN PORTIONS OF THE FA UNTIL MON NIGHT AND TUES WHEN 
IT FINALLY MOVES EAST ACROSS THE FA AS A DISTURBANCE MOVES EAST 
ACROSS THE SOUTHERN PLAINS. WITH THE DIFFERENCES/INCONSISTENCIES 
HAVE LOW POPS IN THROUGH MONDAY THEN WILL KEEP DRY PAST THAT TIME 
FOR NOW. WITH THE COLD AIR MOVING INTO THE REGION DURING THIS TIME 
FRAME... HAVE A MENTION OF WINTRY PRECIP IN THE FORECAST. 

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  26  47  24  60 /   0   0  10   0 
HOBART OK         25  49  23  61 /   0   0   0   0 
WICHITA FALLS TX  27  55  26  62 /   0   0   0   0 
GAGE OK           19  46  17  61 /   0   0   0   0 
PONCA CITY OK     24  44  21  60 /   0   0   0   0 
DURANT OK         27  55  27  58 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

02/09/09

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
413 AM CST WED JAN 26 2011

.DISCUSSION...
UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA TODAY
WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND SHIFT TO
THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER FAVORABLE
DOWNSLOPE FLOW CONDITIONS. 

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  52  25  62  31 /   0   0   0   0 
HOBART OK         52  25  60  29 /   0   0   0   0 
WICHITA FALLS TX  57  27  64  30 /   0   0   0   0 
GAGE OK           48  21  59  23 /   0   0   0   0 
PONCA CITY OK     46  24  59  30 /   0   0   0   0 
DURANT OK         57  30  58  34 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
535 AM CST WED JAN 26 2011

.AVIATION...
SMALL AMOUNT OF MVFR CIGS HAS BEEN OBSERVED OVER KS AND IS
SUPPORTED TO SOME DEGREE BY RH PROGS ACROSS N OK. WILL INTRODUCE A
FEW STRATOCU LATER TODAY ACROSS OK BUT ANY CIGS LIKELY TO BE
LIMITED TO KPNC AREA THIS AFTERNOON. OTHERWISE CONTINUED VFR. 

&&

.PREV DISCUSSION... /ISSUED 413 AM CST WED JAN 26 2011/ 

DISCUSSION...
UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA TODAY
WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND SHIFT TO
THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER FAVORABLE
DOWNSLOPE FLOW CONDITIONS. 

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  52  25  62  31 /   0   0   0   0 
HOBART OK         52  25  60  29 /   0   0   0   0 
WICHITA FALLS TX  57  27  64  30 /   0   0   0   0 
GAGE OK           48  21  59  23 /   0   0   0   0 
PONCA CITY OK     46  24  59  30 /   0   0   0   0 
DURANT OK         57  30  58  34 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1101 AM CST WED JAN 26 2011

.UPDATE...WINDS WERE SOMEWHAT GUSTY...TO AROUND 20 MPH IN WESTERN
OKLAHOMA...OWING MAINLY TO SOME WEAK COLD ADVECTION BEHIND A
TROUGH OR WEAK COLD FRONT THAT CAME THROUGH THIS MORNING.
TEMPERATURES ROSE QUICKLY AS A SHALLOW INVERSION BECAME MIXED...
BUT ANTICIPATE A SLOWER RISE THIS AFTERNOON...AND DID NOT MAKE
CHANGES TO HIGH TEMPERATURES AT THIS TIME.

&&

PREV DISCUSSION... /ISSUED 413 AM CST WED JAN 26 2011/

UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA
TODAY WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND
SHIFT TO THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER
FAVORABLE DOWNSLOPE FLOW CONDITIONS.

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  52  25  62  31 /   0   0   0   0 
HOBART OK         52  25  60  29 /   0   0   0   0 
WICHITA FALLS TX  57  27  64  30 /   0   0   0   0 
GAGE OK           48  21  59  23 /   0   0   0   0 
PONCA CITY OK     46  24  59  30 /   0   0   0   0 
DURANT OK         57  30  58  34 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

25/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1108 AM CST WED JAN 26 2011

.AVIATION...
18Z TAFS... VFR CONDITIONS THROUGHOUT THE TAF PERIOD EXCEPT FOR A
BRIEF PERIOD EARLY THIS AFTN AT KPNC WHERE IFR CEILINGS COULD
MOVE INTO THE AREA.

&&

.PREV DISCUSSION... /ISSUED 1101 AM CST WED JAN 26 2011/ 

UPDATE...WINDS WERE SOMEWHAT GUSTY...TO AROUND 20 MPH IN WESTERN
OKLAHOMA...OWING MAINLY TO SOME WEAK COLD ADVECTION BEHIND A
TROUGH OR WEAK COLD FRONT THAT CAME THROUGH THIS MORNING.
TEMPERATURES ROSE QUICKLY AS A SHALLOW INVERSION BECAME MIXED...
BUT ANTICIPATE A SLOWER RISE THIS AFTERNOON...AND DID NOT MAKE
CHANGES TO HIGH TEMPERATURES AT THIS TIME.

PREV DISCUSSION... /ISSUED 413 AM CST WED JAN 26 2011/

UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA
TODAY WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND
SHIFT TO THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER
FAVORABLE DOWNSLOPE FLOW CONDITIONS.

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  52  25  62  31 /   0   0   0   0 
HOBART OK         52  25  60  29 /   0   0   0   0 
WICHITA FALLS TX  57  27  64  30 /   0   0   0   0 
GAGE OK           48  21  59  23 /   0   0   0   0 
PONCA CITY OK     46  24  59  30 /   0   0   0   0 
DURANT OK         57  30  58  34 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

22/25/25

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
237 PM CST WED JAN 26 2011

.DISCUSSION...
WARMER TEMPERATURES EXPECTED OVER THE NEXT COUPLE OF DAYS. WITH 
MAINLY DOWNSLOPE CONDITIONS... HIGHS IN THE 60S AND 70S ARE 
POSSIBLE. THE WARM TEMPERATURES WILL ALSO COMBINE WITH LOW 
HUMIDITIES TO ELEVATE THE WILDFIRE POTENTIAL. HOWEVER... WINDS ARE 
EXPECTED TO REMAIN RELATIVELY LIGHT SO DO NOT EXPECT ANY FIRE WX 
HEADLINES AT THIS TIME. MODELS SHOW A WEAK COLD FRONT MOVING INTO 
PARTS OF THE FA FRI NIGHT/SATURDAY REDUCING TEMPS FROM THE LEVELS OF 
THE NEXT COUPLE OF DAYS IN SOME PLACES SAT AFTN. HOWEVER... STILL 
REMAIN RELATIVELY WARM AND ABOVE NORMAL WITH ELEVATED WILDFIRE 
POTENTIAL ONCE AGAIN IN PARTS OF THE FA. THE MOVEMENT/POSITION OF 
THIS FRONT WILL ALSO HAVE AN IMPACT ON TEMP FORECAST FOR SAT.

THE WEATHER PICTURE THEN BECOMES SOMEWHAT MUDDLED IN THE MODELS INTO 
EARLY NEXT WEEK. BOTH MODELS SHOW A GENERAL COOLING TREND SUNDAY 
INTO MONDAY AS COOLER AIR BEGINS TO OOZE INTO THE REGION. A COLDER 
AIRMASS WILL THEN BE IN PLACE BY TUESDAY. MODELS CONT TO DIFFER TO 
THE PATH/TIMING/EVOLUTION OF SYSTEMS THAT MOVE ACROSS THE WESTERN 
U.S. AND DISTURBANCES IN THE NORTHERN BRANCH OF THE UPR FLOW. THIS 
WILL HAVE AN AFFECT ON THE TIMING OF THE COLDER AIR AND PRECIP 
CHANCES. RIGHT NOW A DISTURBANCE IS EXPECTED TO MOVE ACROSS TEXAS 
OVER THE WEEKEND BRINGING A SLIGHT CHANCE OF PRECIP...FALLING IN THE 
FORM OF RAIN... SAT NIGHT INTO SUNDAY. THE SLIGHT CHANCES WILL THEN 
CONT THROUGH MONDAY NIGHT AS THE NEXT SYSTEMS AFFECT THE REGION. 
WITH THE COLDER AIR MOVING IN... THIS WILL LEAD TO A CHANCE OF 
WINTRY PRECIPITATION ACROSS PARTS OF THE FA. WILL KEEP POPS LOW AS 
STILL GREAT UNCERTAINTIES ON HOW THINGS WILL EVOLVE AND THE PROBABLE 
LACK OF ABUNDANT MOISTURE AVAILABLE FOR ANY PRECIP.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  25  64  31  71 /   0   0   0   0 
HOBART OK         25  62  29  71 /   0   0   0   0 
WICHITA FALLS TX  27  67  30  72 /   0   0   0   0 
GAGE OK           21  64  23  70 /   0   0   0   0 
PONCA CITY OK     24  61  30  69 /   0   0   0   0 
DURANT OK         30  60  34  68 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

22/25

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1124 PM CST WED JAN 26 2011

.AVIATION...
CEILINGS AND VISIBILITIES ARE EXPECTED TO BE UNRESTRICTED AT TAF
SITES THROUGH 06Z TOMORROW NIGHT. HOWEVER... CANNOT COMPLETELY
RULE OUT RADIATION FOG EARLY THURSDAY MORNING IN PROTECTED AREAS...
ESPECIALLY NEAR LAKES OR RIVERS. WINDS WILL BE LIGHT OVERNIGHT...
THEN INCREASE FROM THE WEST ON THURSDAY AS DAYTIME HEATING
ENHANCES LOW-LEVEL VERTICAL MIXING. WINDS WILL THEN SUBSIDE AROUND
SUNSET AS THE MIXING DIMINISHES AGAIN.

&&

.PREV DISCUSSION... /ISSUED 237 PM CST WED JAN 26 2011/ 

DISCUSSION...
WARMER TEMPERATURES EXPECTED OVER THE NEXT COUPLE OF DAYS. WITH 
MAINLY DOWNSLOPE CONDITIONS... HIGHS IN THE 60S AND 70S ARE 
POSSIBLE. THE WARM TEMPERATURES WILL ALSO COMBINE WITH LOW 
HUMIDITIES TO ELEVATE THE WILDFIRE POTENTIAL. HOWEVER... WINDS ARE 
EXPECTED TO REMAIN RELATIVELY LIGHT SO DO NOT EXPECT ANY FIRE WX 
HEADLINES AT THIS TIME. MODELS SHOW A WEAK COLD FRONT MOVING INTO 
PARTS OF THE FA FRI NIGHT/SATURDAY REDUCING TEMPS FROM THE LEVELS OF 
THE NEXT COUPLE OF DAYS IN SOME PLACES SAT AFTN. HOWEVER... STILL 
REMAIN RELATIVELY WARM AND ABOVE NORMAL WITH ELEVATED WILDFIRE 
POTENTIAL ONCE AGAIN IN PARTS OF THE FA. THE MOVEMENT/POSITION OF 
THIS FRONT WILL ALSO HAVE AN IMPACT ON TEMP FORECAST FOR SAT.

THE WEATHER PICTURE THEN BECOMES SOMEWHAT MUDDLED IN THE MODELS INTO 
EARLY NEXT WEEK. BOTH MODELS SHOW A GENERAL COOLING TREND SUNDAY 
INTO MONDAY AS COOLER AIR BEGINS TO OOZE INTO THE REGION. A COLDER 
AIRMASS WILL THEN BE IN PLACE BY TUESDAY. MODELS CONT TO DIFFER TO 
THE PATH/TIMING/EVOLUTION OF SYSTEMS THAT MOVE ACROSS THE WESTERN 
U.S. AND DISTURBANCES IN THE NORTHERN BRANCH OF THE UPR FLOW. THIS 
WILL HAVE AN AFFECT ON THE TIMING OF THE COLDER AIR AND PRECIP 
CHANCES. RIGHT NOW A DISTURBANCE IS EXPECTED TO MOVE ACROSS TEXAS 
OVER THE WEEKEND BRINGING A SLIGHT CHANCE OF PRECIP...FALLING IN THE 
FORM OF RAIN... SAT NIGHT INTO SUNDAY. THE SLIGHT CHANCES WILL THEN 
CONT THROUGH MONDAY NIGHT AS THE NEXT SYSTEMS AFFECT THE REGION. 
WITH THE COLDER AIR MOVING IN... THIS WILL LEAD TO A CHANCE OF 
WINTRY PRECIPITATION ACROSS PARTS OF THE FA. WILL KEEP POPS LOW AS 
STILL GREAT UNCERTAINTIES ON HOW THINGS WILL EVOLVE AND THE PROBABLE 
LACK OF ABUNDANT MOISTURE AVAILABLE FOR ANY PRECIP.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  25  64  31  71 /   0   0   0   0 
HOBART OK         25  62  29  71 /   0   0   0   0 
WICHITA FALLS TX  27  67  30  72 /   0   0   0   0 
GAGE OK           21  64  23  70 /   0   0   0   0 
PONCA CITY OK     24  61  30  69 /   0   0   0   0 
DURANT OK         30  60  34  68 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
429 AM CST THU JAN 27 2011

.DISCUSSION...
DECENT WARMUP NEXT FEW DAYS WITH DOWNSLOPE WESTERLIES AT THE SFC. 
NAM12 SFC T HAS DONE WELL RECENTLY ON THE HIGHS ACCORDING TO LOCAL
VERIFICATION DATA. RECENT RUNS SUPPORT 60S TODAY AND LOW 70S
FRIDAY OVER MOST OF THE AREA. MOST RECENT NAM AND ECMWF RUNS HOLD
OFF ANY BACK-DOOR COLD INTRUSIONS INTO OK UNTIL SAT NIGHT... SO
SATURDAY ALSO IS LIKELY TO FEATURE SPRINGLIKE TEMPS OVER MOST OF
THE AREA. FRONT IS LIKELY TO BE VERY CLOSE TO FAR N OK IF NOT INTO
THE STATE... SO HIGHS ON SATURDAY COULD STILL BE A CHALLENGE NEAR
THE KS BORDER. WILDFIRE POTENTIAL WILL BE ELEVATED EACH AFTERNOON
THROUGH SATURDAY DUE TO WARM DRY CONDITIONS... BUT WINDS WILL BE
RELATIVELY LIGHT MOST OF THE TIME. SATURDAY MAY BE THE DAY OF
GREATEST CONCERN DUE TO SLIGHTLY STRONGER WINDS.

CHILLDOWN IS LIKELY TO COMMENCE SAT NIGHT AND SUNDAY AS SFC FRONT 
MOVES S IN WAKE OF AN UPPER LOW MOVING ACROSS N TX. WE WILL KEEP
SOME LOW POPS GOING FOR -RA OVER MUCH OF THE SE PART OF THE CWA
SAT NIGHT AND SUNDAY. ANY PRECIP SHOULD END BEFORE ENOUGH COLD AIR
ARRIVES TO FORCE A CHANGEOVER.

FIRST PART OF NEXT WEEK IS LOOKING MORE TROUBLESOME IN TERMS OF SNOW 
AND ICE. MED-RANGE MODELS STILL DIFFER ON TIMING OF THE SYSTEM 
ARRIVING ON THE OR-CA COAST EARLY SUNDAY AND INTO THE S PLAINS FIRST 
HALF OF NEXT WEEK. BUT THEY APPEAR TO BE CONVERGING ON A SCENARIO 
THAT WOULD GIVE US A PRECIP LULL AROUND MONDAY IN WAKE OF THE 
WEEKEND SYSTEM... FOLLOWED BY INCREASIHG CHANCES MON NIGHT THROUGH 
TUE NIGHT. PROBLEM IS THAT THE CANADIAN AIR WILL BE ON THE OFFENSIVE 
DURING THIS PERIOD AND WILL EITHER BE MOVING INTO THE AREA OR WILL 
ALREADY BE IN PLACE. ECMWF REMAINS MORE AGGRESSIVE THAN THE GFS ON 
THE ARCTIC HIGH INTRUSION INTO THE S PLAINS MONDAY... AND WOULD BE 
THE MORE LIKELY SCENARIO IF THERE WERE ALREADY A BIG ARCTIC HIGH
AND A LOT OF BITTER COLD AIR UP THERE RIGHT NOW. BUT THERE ISNT.
THE ECMWF IN FACT HAS BACKED OFF FROM YESTERDAY'S 1051 HIGH OVER
MT AND 504 THICKNESS INTO OK NEXT TUE... BUT MODEL CONSENSUS STILL
SUPPORTS A 1040-SOMETHING HIGH INTO THE N PLAINS MONDAY WHICH WILL
PUSH COLDER AIR INTO THE REGION WHILE THE UPPER SYSTEM APPROACHES
FROM NM. FORECAST THUS PRESENTS A MORE GRADUAL CHILLDOWN OVER THE
SUNDAY-TUESDAY PERIOD - BUT A SIGNIFICANT ONE NONETHELESS. LARGE-
SCALE EVOLUTION OF FEATURES ON CURRENT MED-RANGE MODELS IS PRETTY
TYPICAL OF A HEAVY-SNOW EVENT IN THE S PLAINS... BUT THE MORE
GRADUAL INJECTION OF LOW-LEVEL COLD AIR SUGGESTS A CONCURRENT
POTENTIAL FOR A PERIOD OF ICE BEFORE THE COLD AIR WINS OUT AND
SNOW PREVAILS BY THE END OF THE EVENT. POPS HAVE BEEN INCREASED
MON NIGHT INTO TUE NIGHT PER LATEST GFS GUIDANCE. TEMPS LATE IN
THE FORECAST AGAIN ARE CLOSE TO LATEST HPC GUIDANCE.

SYSTEM NEXT WEEK COULD GO IN ANY OF SEVERAL DIRECTIONS - MOSTLY SNOW 
OR MOSTLY ICE OF SOME OF EVERYTHING. WOULD NOT EVEN BE SURPRISED AT 
COLD AND DRY WITH LITTLE OR NO PRECIP GIVEN THE WAY THINGS HAVE BEEN 
GOING LATELY. WE WILL HIT IT A LITTLE HARDER IN THE HWO... BUT WILL 
EMPHASIZE THE EXISTING UNCERTAINTIES ON DETAILS INCLUDING TIMING... 
AMOUNTS... AND PRECIP TYPE/S.   

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  62  33  73  34 /   0   0   0   0 
HOBART OK         63  31  68  32 /   0   0   0   0 
WICHITA FALLS TX  64  32  74  35 /   0   0   0   0 
GAGE OK           65  26  72  24 /   0   0   0   0 
PONCA CITY OK     59  32  68  31 /   0   0   0   0 
DURANT OK         61  37  70  41 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
513 AM CST THU JAN 27 2011

.AVIATION...
VFR WITH FEW CLOUDS IF ANY. LIGHT WESTERLY WINDS THROUGH TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 429 AM CST THU JAN 27 2011/ 

DISCUSSION...
DECENT WARMUP NEXT FEW DAYS WITH DOWNSLOPE WESTERLIES AT THE SFC. 
NAM12 SFC T HAS DONE WELL RECENTLY ON THE HIGHS ACCORDING TO LOCAL
VERIFICATION DATA. RECENT RUNS SUPPORT 60S TODAY AND LOW 70S
FRIDAY OVER MOST OF THE AREA. MOST RECENT NAM AND ECMWF RUNS HOLD
OFF ANY BACK-DOOR COLD INTRUSIONS INTO OK UNTIL SAT NIGHT... SO
SATURDAY ALSO IS LIKELY TO FEATURE SPRINGLIKE TEMPS OVER MOST OF
THE AREA. FRONT IS LIKELY TO BE VERY CLOSE TO FAR N OK IF NOT INTO
THE STATE... SO HIGHS ON SATURDAY COULD STILL BE A CHALLENGE NEAR
THE KS BORDER. WILDFIRE POTENTIAL WILL BE ELEVATED EACH AFTERNOON
THROUGH SATURDAY DUE TO WARM DRY CONDITIONS... BUT WINDS WILL BE
RELATIVELY LIGHT MOST OF THE TIME. SATURDAY MAY BE THE DAY OF
GREATEST CONCERN DUE TO SLIGHTLY STRONGER WINDS.

CHILLDOWN IS LIKELY TO COMMENCE SAT NIGHT AND SUNDAY AS SFC FRONT 
MOVES S IN WAKE OF AN UPPER LOW MOVING ACROSS N TX. WE WILL KEEP
SOME LOW POPS GOING FOR -RA OVER MUCH OF THE SE PART OF THE CWA
SAT NIGHT AND SUNDAY. ANY PRECIP SHOULD END BEFORE ENOUGH COLD AIR
ARRIVES TO FORCE A CHANGEOVER.

FIRST PART OF NEXT WEEK IS LOOKING MORE TROUBLESOME IN TERMS OF SNOW 
AND ICE. MED-RANGE MODELS STILL DIFFER ON TIMING OF THE SYSTEM 
ARRIVING ON THE OR-CA COAST EARLY SUNDAY AND INTO THE S PLAINS FIRST 
HALF OF NEXT WEEK. BUT THEY APPEAR TO BE CONVERGING ON A SCENARIO 
THAT WOULD GIVE US A PRECIP LULL AROUND MONDAY IN WAKE OF THE 
WEEKEND SYSTEM... FOLLOWED BY INCREASIHG CHANCES MON NIGHT THROUGH 
TUE NIGHT. PROBLEM IS THAT THE CANADIAN AIR WILL BE ON THE OFFENSIVE 
DURING THIS PERIOD AND WILL EITHER BE MOVING INTO THE AREA OR WILL 
ALREADY BE IN PLACE. ECMWF REMAINS MORE AGGRESSIVE THAN THE GFS ON 
THE ARCTIC HIGH INTRUSION INTO THE S PLAINS MONDAY... AND WOULD BE 
THE MORE LIKELY SCENARIO IF THERE WERE ALREADY A BIG ARCTIC HIGH
AND A LOT OF BITTER COLD AIR UP THERE RIGHT NOW. BUT THERE ISNT.
THE ECMWF IN FACT HAS BACKED OFF FROM YESTERDAY'S 1051 HIGH OVER
MT AND 504 THICKNESS INTO OK NEXT TUE... BUT MODEL CONSENSUS STILL
SUPPORTS A 1040-SOMETHING HIGH INTO THE N PLAINS MONDAY WHICH WILL
PUSH COLDER AIR INTO THE REGION WHILE THE UPPER SYSTEM APPROACHES
FROM NM. FORECAST THUS PRESENTS A MORE GRADUAL CHILLDOWN OVER THE
SUNDAY-TUESDAY PERIOD - BUT A SIGNIFICANT ONE NONETHELESS. LARGE-
SCALE EVOLUTION OF FEATURES ON CURRENT MED-RANGE MODELS IS PRETTY
TYPICAL OF A HEAVY-SNOW EVENT IN THE S PLAINS... BUT THE MORE
GRADUAL INJECTION OF LOW-LEVEL COLD AIR SUGGESTS A CONCURRENT
POTENTIAL FOR A PERIOD OF ICE BEFORE THE COLD AIR WINS OUT AND
SNOW PREVAILS BY THE END OF THE EVENT. POPS HAVE BEEN INCREASED
MON NIGHT INTO TUE NIGHT PER LATEST GFS GUIDANCE. TEMPS LATE IN
THE FORECAST AGAIN ARE CLOSE TO LATEST HPC GUIDANCE.

SYSTEM NEXT WEEK COULD GO IN ANY OF SEVERAL DIRECTIONS - MOSTLY SNOW 
OR MOSTLY ICE OF SOME OF EVERYTHING. WOULD NOT EVEN BE SURPRISED AT 
COLD AND DRY WITH LITTLE OR NO PRECIP GIVEN THE WAY THINGS HAVE BEEN 
GOING LATELY. WE WILL HIT IT A LITTLE HARDER IN THE HWO... BUT WILL 
EMPHASIZE THE EXISTING UNCERTAINTIES ON DETAILS INCLUDING TIMING... 
AMOUNTS... AND PRECIP TYPE/S.   

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  62  33  73  34 /   0   0   0   0 
HOBART OK         63  31  68  32 /   0   0   0   0 
WICHITA FALLS TX  64  32  74  35 /   0   0   0   0 
GAGE OK           65  26  72  24 /   0   0   0   0 
PONCA CITY OK     59  32  68  31 /   0   0   0   0 
DURANT OK         61  37  70  41 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1112 AM CST THU JAN 27 2011

.AVIATION...
WEAK WIND SHIFT MOVING THROUGH THE AREA WILL SHIFT WINDS SLIGHTLY
FROM WEST/SOUTHWEST TO A NORTHWEST WIND TODAY. SOME SLIGHTLY GUSTY
WIND SPEEDS WILL OCCUR THIS AFTERNOON BEFORE WINDS BECOME LIGHT
AND GENERALLY FROM THE WEST/SOUTHWEST THIS EVENING. A FEW MID-
LEVEL CLOUDS WILL MOVE THROUGH THE AREA THIS AFTERNOON... BUT
OTHERWISE CLEAR SKIES WILL PREVAIL.

&&

.PREV DISCUSSION... /ISSUED 513 AM CST THU JAN 27 2011/ 

AVIATION...
VFR WITH FEW CLOUDS IF ANY. LIGHT WESTERLY WINDS THROUGH TONIGHT.

PREV DISCUSSION... /ISSUED 429 AM CST THU JAN 27 2011/ 

DISCUSSION...
DECENT WARMUP NEXT FEW DAYS WITH DOWNSLOPE WESTERLIES AT THE SFC. 
NAM12 SFC T HAS DONE WELL RECENTLY ON THE HIGHS ACCORDING TO LOCAL
VERIFICATION DATA. RECENT RUNS SUPPORT 60S TODAY AND LOW 70S
FRIDAY OVER MOST OF THE AREA. MOST RECENT NAM AND ECMWF RUNS HOLD
OFF ANY BACK-DOOR COLD INTRUSIONS INTO OK UNTIL SAT NIGHT... SO
SATURDAY ALSO IS LIKELY TO FEATURE SPRINGLIKE TEMPS OVER MOST OF
THE AREA. FRONT IS LIKELY TO BE VERY CLOSE TO FAR N OK IF NOT INTO
THE STATE... SO HIGHS ON SATURDAY COULD STILL BE A CHALLENGE NEAR
THE KS BORDER. WILDFIRE POTENTIAL WILL BE ELEVATED EACH AFTERNOON
THROUGH SATURDAY DUE TO WARM DRY CONDITIONS... BUT WINDS WILL BE
RELATIVELY LIGHT MOST OF THE TIME. SATURDAY MAY BE THE DAY OF
GREATEST CONCERN DUE TO SLIGHTLY STRONGER WINDS.

CHILLDOWN IS LIKELY TO COMMENCE SAT NIGHT AND SUNDAY AS SFC FRONT 
MOVES S IN WAKE OF AN UPPER LOW MOVING ACROSS N TX. WE WILL KEEP
SOME LOW POPS GOING FOR -RA OVER MUCH OF THE SE PART OF THE CWA
SAT NIGHT AND SUNDAY. ANY PRECIP SHOULD END BEFORE ENOUGH COLD AIR
ARRIVES TO FORCE A CHANGEOVER.

FIRST PART OF NEXT WEEK IS LOOKING MORE TROUBLESOME IN TERMS OF SNOW 
AND ICE. MED-RANGE MODELS STILL DIFFER ON TIMING OF THE SYSTEM 
ARRIVING ON THE OR-CA COAST EARLY SUNDAY AND INTO THE S PLAINS FIRST 
HALF OF NEXT WEEK. BUT THEY APPEAR TO BE CONVERGING ON A SCENARIO 
THAT WOULD GIVE US A PRECIP LULL AROUND MONDAY IN WAKE OF THE 
WEEKEND SYSTEM... FOLLOWED BY INCREASIHG CHANCES MON NIGHT THROUGH 
TUE NIGHT. PROBLEM IS THAT THE CANADIAN AIR WILL BE ON THE OFFENSIVE 
DURING THIS PERIOD AND WILL EITHER BE MOVING INTO THE AREA OR WILL 
ALREADY BE IN PLACE. ECMWF REMAINS MORE AGGRESSIVE THAN THE GFS ON 
THE ARCTIC HIGH INTRUSION INTO THE S PLAINS MONDAY... AND WOULD BE 
THE MORE LIKELY SCENARIO IF THERE WERE ALREADY A BIG ARCTIC HIGH
AND A LOT OF BITTER COLD AIR UP THERE RIGHT NOW. BUT THERE ISNT.
THE ECMWF IN FACT HAS BACKED OFF FROM YESTERDAY'S 1051 HIGH OVER
MT AND 504 THICKNESS INTO OK NEXT TUE... BUT MODEL CONSENSUS STILL
SUPPORTS A 1040-SOMETHING HIGH INTO THE N PLAINS MONDAY WHICH WILL
PUSH COLDER AIR INTO THE REGION WHILE THE UPPER SYSTEM APPROACHES
FROM NM. FORECAST THUS PRESENTS A MORE GRADUAL CHILLDOWN OVER THE
SUNDAY-TUESDAY PERIOD - BUT A SIGNIFICANT ONE NONETHELESS. LARGE-
SCALE EVOLUTION OF FEATURES ON CURRENT MED-RANGE MODELS IS PRETTY
TYPICAL OF A HEAVY-SNOW EVENT IN THE S PLAINS... BUT THE MORE
GRADUAL INJECTION OF LOW-LEVEL COLD AIR SUGGESTS A CONCURRENT
POTENTIAL FOR A PERIOD OF ICE BEFORE THE COLD AIR WINS OUT AND
SNOW PREVAILS BY THE END OF THE EVENT. POPS HAVE BEEN INCREASED
MON NIGHT INTO TUE NIGHT PER LATEST GFS GUIDANCE. TEMPS LATE IN
THE FORECAST AGAIN ARE CLOSE TO LATEST HPC GUIDANCE.

SYSTEM NEXT WEEK COULD GO IN ANY OF SEVERAL DIRECTIONS - MOSTLY SNOW 
OR MOSTLY ICE OF SOME OF EVERYTHING. WOULD NOT EVEN BE SURPRISED AT 
COLD AND DRY WITH LITTLE OR NO PRECIP GIVEN THE WAY THINGS HAVE BEEN 
GOING LATELY. WE WILL HIT IT A LITTLE HARDER IN THE HWO... BUT WILL 
EMPHASIZE THE EXISTING UNCERTAINTIES ON DETAILS INCLUDING TIMING... 
AMOUNTS... AND PRECIP TYPE/S.   

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  62  33  73  34 /   0   0   0   0 
HOBART OK         63  31  68  32 /   0   0   0   0 
WICHITA FALLS TX  64  32  74  35 /   0   0   0   0 
GAGE OK           65  26  72  24 /   0   0   0   0 
PONCA CITY OK     59  32  68  31 /   0   0   0   0 
DURANT OK         61  37  70  41 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
338 PM CST THU JAN 27 2011

.DISCUSSION...
VERY WARM TEMPERATURES ARE IN STORE FOR THE NEXT COUPLE OF DAYS...
ALTHOUGH THERE IS SOME DISAGREEMENT IN THE MODELS ABOUT HOW FAR A
COLD FRONT WILL MOVE SOUTH ON SATURDAY. GFS BRINGS FRONT INTO THE
NORTHERN THIRD OF THE CWA BY 00Z/SUNDAY WHILE ECMWF AND ESPECIALLY
THE NAM KEEP THE FRONT NORTH OF THE AREA. IN COORDINATION WITH THE
ADJACENT KANSAS OFFICES... WILL GO CLOSER TO THE WARMER NAM
SOLUTION FOR SATURDAY AT THIS POINT. ALL THE MODELS DO SHOW THE
COLD FRONT MOVING THROUGH THE AREA SATURDAY NIGHT AND SUNDAY
MORNING BEGINNING A MUCH COOLER PERIOD OF TIME. REINFORCING SHOTS
OF COLD AIR LOOKS TO COME IN EARLY NEXT WEEK WITH TEMPERATURES
COLDEST TEMPERATURES EXPECTED ON TUESDAY AND WEDNESDAY.

PRECIPITATION FORECAST IS STILL TRICKY. AT LEAST SLIGHT
PRECIPITATION CHANCES BEGIN ON SATURDAY NIGHT AND PERSIST INTO
EARLY NEXT WEEK. MEDIUM RANGE MODELS DO INCREASE THE
PRECIPITATION CHANCES NEXT WEEK ALTHOUGH THERE ARE SIGNIFICANT
DIFFERENCES IN THE LOCATION AND TIMING OF THE PRECIPITATION... AND
STILL UNCERTAINTY ON PRECIPITATION TYPE ESPECIALLY EARLY IN THE
EVENT. SURFACE FRONT WILL BE WELL TO THE SOUTH OF THE AREA AND
ISENTROPIC ANALYSIS SHOWS DECENT MOISTURE FEED AND LIFT ABOVE THE
FRONTAL SURFACE... BUT NOT IN THE TYPICAL CONFIGURATION FOR US.
INSTEAD OF A MOIST SOUTHERLY FLOW ABOVE THE FRONTAL SURFACE... THE
MOIST FLOW IS A EAST TO WEST FLOW FROM ARKANSAS DESPITE THE LACK
OF A STRONG LOW-LEVEL CYCLONE. SO THERE IS THE UNCERTAINTY ABOUT
MOISTURE AVAILABILITY FOR THE STORM SYSTEM EARLY NEXT WEEK
ESPECIALLY GIVEN THE POOR TRACK RECORD OF THE MOISTURE RETURN IN
THE MODELS WITH SOME OF THE RECENT NON-EVENTS. REGARDLESS AT THIS
POINT... CHANCE POPS ARE WARRANTED ON MONDAY NIGHT TO TUESDAY
NIGHT ALTHOUGH GEOGRAPHIC AND SIGNIFICANCE DETAILS ARE STILL VERY
MUCH IN QUESTION. AND AT THIS POINT ALL OF THE MEDIUM RANGE MODELS
SUGGEST THAT PRECIPITATION WILL END TUESDAY NIGHT SO WEDNESDAY AND
THURSDAY ARE DRY AND WARMING IN THIS PACKAGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  34  69  34  71 /   0   0   0   0 
HOBART OK         32  69  31  69 /   0   0   0   0 
WICHITA FALLS TX  33  72  35  73 /   0   0   0  10 
GAGE OK           25  73  25  67 /   0   0   0   0 
PONCA CITY OK     31  65  29  66 /   0   0   0   0 
DURANT OK         36  66  38  67 /   0   0   0  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
930 PM CST THU JAN 27 2011

.DISCUSSION...
TONIGHT WILL BE RELATIVELY WARM... WITH LIGHT WINDS AND FEW
CLOUDS. THE LATTER TWO ITEMS WILL RESULT IN HIGHLY VARIABLE
TEMPERATURES OVERNIGHT. NO CHANGES ARE CURRENTLY PLANNED FOR THE
FORECAST FOR TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 338 PM CST THU JAN 27 2011/ 

DISCUSSION...
VERY WARM TEMPERATURES ARE IN STORE FOR THE NEXT COUPLE OF DAYS...
ALTHOUGH THERE IS SOME DISAGREEMENT IN THE MODELS ABOUT HOW FAR A
COLD FRONT WILL MOVE SOUTH ON SATURDAY. GFS BRINGS FRONT INTO THE
NORTHERN THIRD OF THE CWA BY 00Z/SUNDAY WHILE ECMWF AND ESPECIALLY
THE NAM KEEP THE FRONT NORTH OF THE AREA. IN COORDINATION WITH THE
ADJACENT KANSAS OFFICES... WILL GO CLOSER TO THE WARMER NAM
SOLUTION FOR SATURDAY AT THIS POINT. ALL THE MODELS DO SHOW THE
COLD FRONT MOVING THROUGH THE AREA SATURDAY NIGHT AND SUNDAY
MORNING BEGINNING A MUCH COOLER PERIOD OF TIME. REINFORCING SHOTS
OF COLD AIR LOOKS TO COME IN EARLY NEXT WEEK WITH TEMPERATURES
COLDEST TEMPERATURES EXPECTED ON TUESDAY AND WEDNESDAY.

PRECIPITATION FORECAST IS STILL TRICKY. AT LEAST SLIGHT
PRECIPITATION CHANCES BEGIN ON SATURDAY NIGHT AND PERSIST INTO
EARLY NEXT WEEK. MEDIUM RANGE MODELS DO INCREASE THE
PRECIPITATION CHANCES NEXT WEEK ALTHOUGH THERE ARE SIGNIFICANT
DIFFERENCES IN THE LOCATION AND TIMING OF THE PRECIPITATION... AND
STILL UNCERTAINTY ON PRECIPITATION TYPE ESPECIALLY EARLY IN THE
EVENT. SURFACE FRONT WILL BE WELL TO THE SOUTH OF THE AREA AND
ISENTROPIC ANALYSIS SHOWS DECENT MOISTURE FEED AND LIFT ABOVE THE
FRONTAL SURFACE... BUT NOT IN THE TYPICAL CONFIGURATION FOR US.
INSTEAD OF A MOIST SOUTHERLY FLOW ABOVE THE FRONTAL SURFACE... THE
MOIST FLOW IS A EAST TO WEST FLOW FROM ARKANSAS DESPITE THE LACK
OF A STRONG LOW-LEVEL CYCLONE. SO THERE IS THE UNCERTAINTY ABOUT
MOISTURE AVAILABILITY FOR THE STORM SYSTEM EARLY NEXT WEEK
ESPECIALLY GIVEN THE POOR TRACK RECORD OF THE MOISTURE RETURN IN
THE MODELS WITH SOME OF THE RECENT NON-EVENTS. REGARDLESS AT THIS
POINT... CHANCE POPS ARE WARRANTED ON MONDAY NIGHT TO TUESDAY
NIGHT ALTHOUGH GEOGRAPHIC AND SIGNIFICANCE DETAILS ARE STILL VERY
MUCH IN QUESTION. AND AT THIS POINT ALL OF THE MEDIUM RANGE MODELS
SUGGEST THAT PRECIPITATION WILL END TUESDAY NIGHT SO WEDNESDAY AND
THURSDAY ARE DRY AND WARMING IN THIS PACKAGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  34  69  34  71 /   0   0   0   0 
HOBART OK         32  69  31  69 /   0   0   0   0 
WICHITA FALLS TX  33  72  35  73 /   0   0   0  10 
GAGE OK           25  73  25  67 /   0   0   0   0 
PONCA CITY OK     31  65  29  66 /   0   0   0   0 
DURANT OK         36  66  38  67 /   0   0   0  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1055 PM CST THU JAN 27 2011

.AVIATION...
VFR CONDITIONS WILL PREVAIL THROUGH THE PD. 

&&

.PREV DISCUSSION... /ISSUED 930 PM CST THU JAN 27 2011/

.DISCUSSION...
TONIGHT WILL BE RELATIVELY WARM... WITH LIGHT WINDS AND FEW
CLOUDS. THE LATTER TWO ITEMS WILL RESULT IN HIGHLY VARIABLE
TEMPERATURES OVERNIGHT. NO CHANGES ARE CURRENTLY PLANNED FOR THE
FORECAST FOR TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 338 PM CST THU JAN 27 2011/ 

DISCUSSION...
VERY WARM TEMPERATURES ARE IN STORE FOR THE NEXT COUPLE OF DAYS...
ALTHOUGH THERE IS SOME DISAGREEMENT IN THE MODELS ABOUT HOW FAR A
COLD FRONT WILL MOVE SOUTH ON SATURDAY. GFS BRINGS FRONT INTO THE
NORTHERN THIRD OF THE CWA BY 00Z/SUNDAY WHILE ECMWF AND ESPECIALLY
THE NAM KEEP THE FRONT NORTH OF THE AREA. IN COORDINATION WITH THE
ADJACENT KANSAS OFFICES... WILL GO CLOSER TO THE WARMER NAM
SOLUTION FOR SATURDAY AT THIS POINT. ALL THE MODELS DO SHOW THE
COLD FRONT MOVING THROUGH THE AREA SATURDAY NIGHT AND SUNDAY
MORNING BEGINNING A MUCH COOLER PERIOD OF TIME. REINFORCING SHOTS
OF COLD AIR LOOKS TO COME IN EARLY NEXT WEEK WITH TEMPERATURES
COLDEST TEMPERATURES EXPECTED ON TUESDAY AND WEDNESDAY.

PRECIPITATION FORECAST IS STILL TRICKY. AT LEAST SLIGHT
PRECIPITATION CHANCES BEGIN ON SATURDAY NIGHT AND PERSIST INTO
EARLY NEXT WEEK. MEDIUM RANGE MODELS DO INCREASE THE
PRECIPITATION CHANCES NEXT WEEK ALTHOUGH THERE ARE SIGNIFICANT
DIFFERENCES IN THE LOCATION AND TIMING OF THE PRECIPITATION... AND
STILL UNCERTAINTY ON PRECIPITATION TYPE ESPECIALLY EARLY IN THE
EVENT. SURFACE FRONT WILL BE WELL TO THE SOUTH OF THE AREA AND
ISENTROPIC ANALYSIS SHOWS DECENT MOISTURE FEED AND LIFT ABOVE THE
FRONTAL SURFACE... BUT NOT IN THE TYPICAL CONFIGURATION FOR US.
INSTEAD OF A MOIST SOUTHERLY FLOW ABOVE THE FRONTAL SURFACE... THE
MOIST FLOW IS A EAST TO WEST FLOW FROM ARKANSAS DESPITE THE LACK
OF A STRONG LOW-LEVEL CYCLONE. SO THERE IS THE UNCERTAINTY ABOUT
MOISTURE AVAILABILITY FOR THE STORM SYSTEM EARLY NEXT WEEK
ESPECIALLY GIVEN THE POOR TRACK RECORD OF THE MOISTURE RETURN IN
THE MODELS WITH SOME OF THE RECENT NON-EVENTS. REGARDLESS AT THIS
POINT... CHANCE POPS ARE WARRANTED ON MONDAY NIGHT TO TUESDAY
NIGHT ALTHOUGH GEOGRAPHIC AND SIGNIFICANCE DETAILS ARE STILL VERY
MUCH IN QUESTION. AND AT THIS POINT ALL OF THE MEDIUM RANGE MODELS
SUGGEST THAT PRECIPITATION WILL END TUESDAY NIGHT SO WEDNESDAY AND
THURSDAY ARE DRY AND WARMING IN THIS PACKAGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  34  69  34  71 /   0   0   0   0 
HOBART OK         32  69  31  69 /   0   0   0   0 
WICHITA FALLS TX  33  72  35  73 /   0   0   0  10 
GAGE OK           25  73  25  67 /   0   0   0   0 
PONCA CITY OK     31  65  29  66 /   0   0   0   0 
DURANT OK         36  66  38  67 /   0   0   0  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
410 AM CST FRI JAN 28 2011

.DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE TYPE
AND AMOUNT OF THE PRECIP. 

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  71  36  69  35 /   0   0   0  10 
HOBART OK         70  33  70  34 /   0   0   0   0 
WICHITA FALLS TX  72  37  73  41 /   0   0  10  10 
GAGE OK           74  28  66  22 /   0   0   0   0 
PONCA CITY OK     66  32  64  27 /   0   0   0   0 
DURANT OK         68  40  70  48 /   0   0  10  30 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
530 AM CST FRI JAN 28 2011

.AVIATION...
/12Z TAFS/
VFR CONDITIONS WILL PREVAIL THROUGH THE FORECAST PERIOD WITH ONLY
A FEW HIGH CLOUDS EXPECTED. LIGHT TO MODERATE W TO SW WINDS WILL
PREVAIL THROUGH THE DAY BEFORE DECREASING AND BACKING TO THE
SOUTH TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 410 AM CST FRI JAN 28 2011/ 

DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE TYPE
AND AMOUNT OF THE PRECIP. 

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  71  36  69  35 /   0   0   0  10 
HOBART OK         70  33  70  34 /   0   0   0   0 
WICHITA FALLS TX  72  37  73  41 /   0   0  10  10 
GAGE OK           74  28  66  22 /   0   0   0   0 
PONCA CITY OK     66  32  64  27 /   0   0   0   0 
DURANT OK         68  40  70  48 /   0   0  10  30 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32/32

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
1106 AM CST FRI JAN 28 2011

.UPDATE...
MAIN CHANGE TO THE PACKAGE THIS MORNING WAS TO DECREASE DEWPOINTS
IN WESTERN OKLAHOMA AND WESTERN NORTH TEXAS BASED ON CURRENT
TRENDS AND EXPECTED CONTINUED DRY.. WESTERLY SURFACE FLOW. THIS
BRINGS MINIMUM RH VALUES TO LESS THAN 20 PERCENT ACROSS A LARGER
AREA OF OKLAHOMA AND NORTH TEXAS ENHANCING WILDFIRE POTENTIAL
DESPITE THE LACK OF STRONG WINDS. ALSO HAVE RAISED MAX
TEMPERATURES SOMEWHAT IN THE EASTERN PART OF THE FORECAST AREA.
UPDATED ZONES HAVE ALREADY BEEN ISSUED.

&&

.PREV DISCUSSION... /ISSUED 530 AM CST FRI JAN 28 2011/ 

AVIATION...
/12Z TAFS/
VFR CONDITIONS WILL PREVAIL THROUGH THE FORECAST PERIOD WITH ONLY
A FEW HIGH CLOUDS EXPECTED. LIGHT TO MODERATE W TO SW WINDS WILL
PREVAIL THROUGH THE DAY BEFORE DECREASING AND BACKING TO THE
SOUTH TONIGHT.

PREV DISCUSSION... /ISSUED 410 AM CST FRI JAN 28 2011/ 

DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE TYPE
AND AMOUNT OF THE PRECIP. 

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  71  36  69  35 /   0   0   0  10 
HOBART OK         70  33  70  34 /   0   0   0   0 
WICHITA FALLS TX  72  37  73  41 /   0   0  10  10 
GAGE OK           74  28  66  22 /   0   0   0   0 
PONCA CITY OK     68  32  64  27 /   0   0   0   0 
DURANT OK         70  40  70  48 /   0   0  10  30 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
1110 AM CST FRI JAN 28 2011

.AVIATION...
SOUTHWEST WINDS WILL DECREASE THIS EVENING WITH CLEAR SKIES. SFC 
BOUNDARY WILL APPROACH NORTHERN TAF SITES BY LATE SATURDAY MORNING 
WITH SOME VARIABILITY IN WIND DIRECTIONS...HOWEVER SPEEDS SHOULD 
REMAIN BELOW 10KTS. UPPER STORM SYSTEM WILL BEGIN TO MOVE EAST INTO 
SOUTHWEST TEXAS ON SATURDAY. THIS WILL BRING SOME MID/HIGH CLOUDS 
TOWARD RED RIVER.

30

&&

.PREV DISCUSSION... /ISSUED 1106 AM CST FRI JAN 28 2011/

.UPDATE...
MAIN CHANGE TO THE PACKAGE THIS MORNING WAS TO DECREASE DEWPOINTS
IN WESTERN OKLAHOMA AND WESTERN NORTH TEXAS BASED ON CURRENT
TRENDS AND EXPECTED CONTINUED DRY.. WESTERLY SURFACE FLOW. THIS
BRINGS MINIMUM RH VALUES TO LESS THAN 20 PERCENT ACROSS A LARGER
AREA OF OKLAHOMA AND NORTH TEXAS ENHANCING WILDFIRE POTENTIAL
DESPITE THE LACK OF STRONG WINDS. ALSO HAVE RAISED MAX
TEMPERATURES SOMEWHAT IN THE EASTERN PART OF THE FORECAST AREA.
UPDATED ZONES HAVE ALREADY BEEN ISSUED.

&&

.PREV DISCUSSION... /ISSUED 530 AM CST FRI JAN 28 2011/ 

AVIATION...
/12Z TAFS/
VFR CONDITIONS WILL PREVAIL THROUGH THE FORECAST PERIOD WITH ONLY
A FEW HIGH CLOUDS EXPECTED. LIGHT TO MODERATE W TO SW WINDS WILL
PREVAIL THROUGH THE DAY BEFORE DECREASING AND BACKING TO THE
SOUTH TONIGHT.

PREV DISCUSSION... /ISSUED 410 AM CST FRI JAN 28 2011/ 

DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE 
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE 
TYPE AND AMOUNT OF THE PRECIP. 

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  71  36  69  35 /   0   0   0  10 
HOBART OK         70  33  70  34 /   0   0   0   0 
WICHITA FALLS TX  72  37  73  41 /   0   0  10  10 
GAGE OK           74  28  66  22 /   0   0   0   0 
PONCA CITY OK     68  32  64  27 /   0   0   0   0 
DURANT OK         70  40  70  48 /   0   0  10  30 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
245 PM CST FRI JAN 28 2011

.DISCUSSION...
ANOTHER VERY MILD DAY TODAY IS EXPECTED TO BE FOLLOWED BY ANOTHER 
MILD DAY ON SATURDAY AS W/SW LOW LEVEL FLOW CONT TO BRING WARM AIR 
OFF MEXICAN PLATEAU. WEAK SFC FRONT MAY SLIP INTO NORTHERN OKLAHOMA 
DURING THE DAY... BUT SHOULD DO LITTLE MORE THAN ACT AS A WIND SHIFT. 
THERE WILL CONT TO BE FIRE WX CONCERNS ON SAT AS VERY WARM... BREEZY 
AND DRY AIR CONT TO RESIDE ACROSS OKLAHOMA AND NORTH TEXAS. 

UPPER WAVE NEAR BAJA WILL EJECT EAST THROUGH TX OVER THE WEEKEND 
BRINGING A SLIGHT CHANCE OF RAIN TO PORTIONS OF SOUTHERN OKLAHOMA. 
AS THIS WAVE MOVES BY IT WILL BEGIN TO BRING SOUTH COOLER AIR 
CURRENTLY ACROSS THE NORTHERN PLAINS. OUR ATTENTION THEN TURNS TO 
UPPER WAVE OFF THE PACIFIC NORTHWEST COAST AND ITS MOVEMENT TOWARD 
THE AREA EARLY NEXT WEEK... AS WELL AS COLDER AIR TAKING SHAPE 
ACROSS CANADA. AT LEAST DEPICTED BY THE MODELS TO TAKE SHAPE. 

LATEST RUNS OF BOTH THE GFS AND ECMWF HAVE SHOWN THAT AS THE 
INITIAL WAVE APPROACHES FROM THE WEST OF MONDAY... WARMER AIR WILL 
TRY AND MOVE BACK NORTH INTO PART OF OKLAHOMA AS MORE SIGNIFICANT 
SFC CYCLOGENESIS DEVELOPS TO OUR WEST/SOUTHWEST. THIS WARMER AIR 
APPEARS THAT IT MAY LIMIT FREEZING/FROZEN PRECIP ACROSS MUCH OF THE 
AREA MONDAY NIGHT. 

MODEL TRENDS WOULD BRING DEEPER/COLDER AIR SOUTHWARD INTO AREA 
DURING THE DAY ON TUESDAY AS SFC LOW CONT TO DEEPEN TO OUR SOUTH AND 
SOUTHEAST. THIS SHOULD ALLOW A QUICKER TRANSITION FROM LIQUID TO 
FROZEN... LIMITING FREEZING RAIN AND SLEET. IN ADDITION LATEST ECMWF 
WOULD BRING AN END TO THE PRECIP RATHER QUICKLY TUE AFTN... EVEN 
LIMITING SNOW ACROSS THE AREA. HOWEVER CONFIDENCE ON ANY PARTICULAR 
SOLUTION FOR THE LATE MONDAY INTO TUESDAY TIME FRAME CONT TO BE 
RATHER LOW. HOWEVER DID ISSUE AN SPS EARLIER IN THE DAY ADDRESSING
SOME OF THE ISSUES.

AFTER PRECIP ENDS TUE EVENING... CONCERN IS THEN WITH COLD AND 
STRONG NORTH WINDS WHICH WILL CREATE VERY LOW WIND CHILLS TUE INTO 
WED. COLD AIR THEN HANGS AROUND THROUGH MUCH OF THE REMAINDER OF 
NEXT WEEK WITH ANOTHER STRONG FRONT POSSIBLY BY THE END OF THE WEEK. 
HOWEVER AFTER TUE EVENING THE FORECAST REMAINS DRY. 

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  36  68  36  44 /   0   0  10  10 
HOBART OK         33  67  33  42 /   0   0   0   0 
WICHITA FALLS TX  37  74  41  48 /   0  10  10   0 
GAGE OK           28  66  23  43 /   0   0   0   0 
PONCA CITY OK     32  63  28  41 /   0   0   0   0 
DURANT OK         40  71  48  53 /   0  10  30  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/30

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
515 PM CST FRI JAN 28 2011

.AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH THE PD. SURFACE BOUNDARY WILL 
DRIFT DOWN INTO NRN OK TONIGHT WITH LIGHT/VARIABLE WINDS EXPECTED AT 
NRN OK SITES. BOUNDARY SHOULD LIFT BACK NWD DURING THE DAY SATURDAY 
BEFORE SURGING S AGAIN SAT AFTERNOON/EVE.

&&

.PREV DISCUSSION... /ISSUED 245 PM CST FRI JAN 28 2011/

.DISCUSSION...
ANOTHER VERY MILD DAY TODAY IS EXPECTED TO BE FOLLOWED BY ANOTHER 
MILD DAY ON SATURDAY AS W/SW LOW LEVEL FLOW CONT TO BRING WARM AIR 
OFF MEXICAN PLATEAU. WEAK SFC FRONT MAY SLIP INTO NORTHERN OKLAHOMA 
DURING THE DAY... BUT SHOULD DO LITTLE MORE THAN ACT AS A WIND 
SHIFT. THERE WILL CONT TO BE FIRE WX CONCERNS ON SAT AS VERY WARM... 
BREEZY AND DRY AIR CONT TO RESIDE ACROSS OKLAHOMA AND NORTH TEXAS. 

UPPER WAVE NEAR BAJA WILL EJECT EAST THROUGH TX OVER THE WEEKEND 
BRINGING A SLIGHT CHANCE OF RAIN TO PORTIONS OF SOUTHERN OKLAHOMA. 
AS THIS WAVE MOVES BY IT WILL BEGIN TO BRING SOUTH COOLER AIR 
CURRENTLY ACROSS THE NORTHERN PLAINS. OUR ATTENTION THEN TURNS TO 
UPPER WAVE OFF THE PACIFIC NORTHWEST COAST AND ITS MOVEMENT TOWARD 
THE AREA EARLY NEXT WEEK... AS WELL AS COLDER AIR TAKING SHAPE 
ACROSS CANADA. AT LEAST DEPICTED BY THE MODELS TO TAKE SHAPE. 

LATEST RUNS OF BOTH THE GFS AND ECMWF HAVE SHOWN THAT AS THE 
INITIAL WAVE APPROACHES FROM THE WEST OF MONDAY... WARMER AIR WILL 
TRY AND MOVE BACK NORTH INTO PART OF OKLAHOMA AS MORE SIGNIFICANT 
SFC CYCLOGENESIS DEVELOPS TO OUR WEST/SOUTHWEST. THIS WARMER AIR 
APPEARS THAT IT MAY LIMIT FREEZING/FROZEN PRECIP ACROSS MUCH OF THE 
AREA MONDAY NIGHT. 

MODEL TRENDS WOULD BRING DEEPER/COLDER AIR SOUTHWARD INTO AREA 
DURING THE DAY ON TUESDAY AS SFC LOW CONT TO DEEPEN TO OUR SOUTH AND 
SOUTHEAST. THIS SHOULD ALLOW A QUICKER TRANSITION FROM LIQUID TO 
FROZEN... LIMITING FREEZING RAIN AND SLEET. IN ADDITION LATEST ECMWF 
WOULD BRING AN END TO THE PRECIP RATHER QUICKLY TUE AFTN... EVEN 
LIMITING SNOW ACROSS THE AREA. HOWEVER CONFIDENCE ON ANY PARTICULAR 
SOLUTION FOR THE LATE MONDAY INTO TUESDAY TIME FRAME CONT TO BE 
RATHER LOW. HOWEVER DID ISSUE AN SPS EARLIER IN THE DAY ADDRESSING
SOME OF THE ISSUES.

AFTER PRECIP ENDS TUE EVENING... CONCERN IS THEN WITH COLD AND 
STRONG NORTH WINDS WHICH WILL CREATE VERY LOW WIND CHILLS TUE INTO 
WED. COLD AIR THEN HANGS AROUND THROUGH MUCH OF THE REMAINDER OF 
NEXT WEEK WITH ANOTHER STRONG FRONT POSSIBLY BY THE END OF THE WEEK. 
HOWEVER AFTER TUE EVENING THE FORECAST REMAINS DRY. 

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  36  68  36  44 /   0   0  10  10 
HOBART OK         33  67  33  42 /   0   0   0   0 
WICHITA FALLS TX  37  74  41  48 /   0  10  10   0 
GAGE OK           28  66  23  43 /   0   0   0   0 
PONCA CITY OK     32  63  28  41 /   0   0   0   0 
DURANT OK         40  71  48  53 /   0  10  30  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/30

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
934 PM CST FRI JAN 28 2011

.DISCUSSION...
WEAK SURFACE HIGH PRESSURE IS RESULTING IN LIGHT WINDS AND CLEAR
SKIES ACROSS OKLAHOMA AND NORTH TEXAS. EXTREMELY DRY AIR IS ALSO
IN PLACE. AS A RESULT... TEMPERATURES HAVE PLUMMETED SINCE
SUNSET... AND WIDE VARIATIONS IN TEMPERATURES - BASED ON
TOPOGRAPHY - HAVE RESULTED. THE CURRENT FORECAST LOOKS GOOD AT
THIS TIME... SO NO CHANGES ARE PLANNED FOR THIS EVENING.

&&

.PREV DISCUSSION... /ISSUED 515 PM CST FRI JAN 28 2011/ 

AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH THE PD. SURFACE BOUNDARY WILL 
DRIFT DOWN INTO NRN OK TONIGHT WITH LIGHT/VARIABLE WINDS EXPECTED AT 
NRN OK SITES. BOUNDARY SHOULD LIFT BACK NWD DURING THE DAY SATURDAY 
BEFORE SURGING S AGAIN SAT AFTERNOON/EVE.

PREV DISCUSSION... /ISSUED 245 PM CST FRI JAN 28 2011/

DISCUSSION...
ANOTHER VERY MILD DAY TODAY IS EXPECTED TO BE FOLLOWED BY ANOTHER 
MILD DAY ON SATURDAY AS W/SW LOW LEVEL FLOW CONT TO BRING WARM AIR 
OFF MEXICAN PLATEAU. WEAK SFC FRONT MAY SLIP INTO NORTHERN OKLAHOMA 
DURING THE DAY... BUT SHOULD DO LITTLE MORE THAN ACT AS A WIND 
SHIFT. THERE WILL CONT TO BE FIRE WX CONCERNS ON SAT AS VERY WARM... 
BREEZY AND DRY AIR CONT TO RESIDE ACROSS OKLAHOMA AND NORTH TEXAS. 

UPPER WAVE NEAR BAJA WILL EJECT EAST THROUGH TX OVER THE WEEKEND 
BRINGING A SLIGHT CHANCE OF RAIN TO PORTIONS OF SOUTHERN OKLAHOMA. 
AS THIS WAVE MOVES BY IT WILL BEGIN TO BRING SOUTH COOLER AIR 
CURRENTLY ACROSS THE NORTHERN PLAINS. OUR ATTENTION THEN TURNS TO 
UPPER WAVE OFF THE PACIFIC NORTHWEST COAST AND ITS MOVEMENT TOWARD 
THE AREA EARLY NEXT WEEK... AS WELL AS COLDER AIR TAKING SHAPE 
ACROSS CANADA. AT LEAST DEPICTED BY THE MODELS TO TAKE SHAPE. 

LATEST RUNS OF BOTH THE GFS AND ECMWF HAVE SHOWN THAT AS THE 
INITIAL WAVE APPROACHES FROM THE WEST OF MONDAY... WARMER AIR WILL 
TRY AND MOVE BACK NORTH INTO PART OF OKLAHOMA AS MORE SIGNIFICANT 
SFC CYCLOGENESIS DEVELOPS TO OUR WEST/SOUTHWEST. THIS WARMER AIR 
APPEARS THAT IT MAY LIMIT FREEZING/FROZEN PRECIP ACROSS MUCH OF THE 
AREA MONDAY NIGHT. 

MODEL TRENDS WOULD BRING DEEPER/COLDER AIR SOUTHWARD INTO AREA 
DURING THE DAY ON TUESDAY AS SFC LOW CONT TO DEEPEN TO OUR SOUTH AND 
SOUTHEAST. THIS SHOULD ALLOW A QUICKER TRANSITION FROM LIQUID TO 
FROZEN... LIMITING FREEZING RAIN AND SLEET. IN ADDITION LATEST ECMWF 
WOULD BRING AN END TO THE PRECIP RATHER QUICKLY TUE AFTN... EVEN 
LIMITING SNOW ACROSS THE AREA. HOWEVER CONFIDENCE ON ANY PARTICULAR 
SOLUTION FOR THE LATE MONDAY INTO TUESDAY TIME FRAME CONT TO BE 
RATHER LOW. HOWEVER DID ISSUE AN SPS EARLIER IN THE DAY ADDRESSING
SOME OF THE ISSUES.

AFTER PRECIP ENDS TUE EVENING... CONCERN IS THEN WITH COLD AND 
STRONG NORTH WINDS WHICH WILL CREATE VERY LOW WIND CHILLS TUE INTO 
WED. COLD AIR THEN HANGS AROUND THROUGH MUCH OF THE REMAINDER OF 
NEXT WEEK WITH ANOTHER STRONG FRONT POSSIBLY BY THE END OF THE WEEK. 
HOWEVER AFTER TUE EVENING THE FORECAST REMAINS DRY. 

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  36  68  36  44 /   0   0  10  10 
HOBART OK         33  67  33  42 /   0   0   0   0 
WICHITA FALLS TX  37  74  41  48 /   0  10  10   0 
GAGE OK           28  66  23  43 /   0   0   0   0 
PONCA CITY OK     32  63  28  41 /   0   0   0   0 
DURANT OK         40  71  48  53 /   0  10  30  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
449 AM CST SAT JAN 29 2011

.DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO 
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER 
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT. 

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS 
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM 
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW 
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN 
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED. 
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA 
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE 
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER 
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  72  36  44  33 /   0  10   0  10 
HOBART OK         71  33  42  31 /   0   0   0  10 
WICHITA FALLS TX  75  41  48  37 /  10  10   0  10 
GAGE OK           68  23  43  22 /   0   0   0  10 
PONCA CITY OK     65  28  41  25 /   0   0   0  20 
DURANT OK         71  48  55  40 /  10  30  20  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
547 AM CST SAT JAN 29 2011

.AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH 00Z WITH OCCASIONAL BKN HIGH
CLOUDS SPREADING IN THIS AFTERNOON. A WEAK SURFACE TROUGH IN
NORTHERN OK WILL DRIFT BACK NORTH INTO KS TODAY. A COLD FRONT WILL
MOVE SOUTH INTO NORTHERN OK AROUND 00Z... REACHING TO NEAR THE RED
RIVER BY THE END OF THE FORECAST PERIOD. LOW CEILINGS AROUND 1K FT
WILL MOVE INTO THE TERMINAL AREAS 1-3 HOURS AFTER FRONTAL PASSAGE.

&&

.PREV DISCUSSION... /ISSUED 449 AM CST SAT JAN 29 2011/ 

DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO 
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER 
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT. 

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS 
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM 
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW 
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN 
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED. 
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA 
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE 
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER 
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  72  36  44  33 /   0  10   0  10 
HOBART OK         71  33  42  31 /   0   0   0  10 
WICHITA FALLS TX  75  41  48  37 /  10  10   0  10 
GAGE OK           68  23  43  22 /   0   0   0  10 
PONCA CITY OK     65  28  41  25 /   0   0   0  20 
DURANT OK         71  48  55  40 /  10  30  20  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
949 AM CST SAT JAN 29 2011

.AVIATION...
18Z TAFS... MAIN QUESTION IS WHETHER POST-FRONTAL STRATUS WILL GET 
INTO OK TONIGHT AND SUNDAY MORNING. INITIAL FRONT/WINDSHIFT IS  
CURRENTLY ACROSS NCENTRAL/NE OK BUT LOW CLOUDS ARE CONFINED TO A 
SECONDARY COLD SURGE NOW MOVING S INTO NEB/IA. MODEL RH PROGS DEPICT 
A SHALLOW LAYER OF LOW-LEVEL SATURATION BEHIND THE FRONT AS THIS 
COLDER AIR BEGINS TO WORK S INTO THE AREA OVERNIGHT. THUS WE WILL
MAINTAIN LOW-MVFR CIGS IN THE TAFS ACROSS N AND CENTRAL OK LATE
TONIGHT AND SUNDAY MORNING. 

&&

.PREV DISCUSSION... /ISSUED 547 AM CST SAT JAN 29 2011/ 

AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH 00Z WITH OCCASIONAL BKN HIGH
CLOUDS SPREADING IN THIS AFTERNOON. A WEAK SURFACE TROUGH IN
NORTHERN OK WILL DRIFT BACK NORTH INTO KS TODAY. A COLD FRONT WILL
MOVE SOUTH INTO NORTHERN OK AROUND 00Z... REACHING TO NEAR THE RED
RIVER BY THE END OF THE FORECAST PERIOD. LOW CEILINGS AROUND 1K FT
WILL MOVE INTO THE TERMINAL AREAS 1-3 HOURS AFTER FRONTAL PASSAGE.

PREV DISCUSSION... /ISSUED 449 AM CST SAT JAN 29 2011/ 

DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO 
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER 
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT. 

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS 
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM 
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW 
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN 
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED. 
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA 
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE 
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER 
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  72  36  44  33 /   0  10   0  10 
HOBART OK         71  33  42  31 /   0   0   0  10 
WICHITA FALLS TX  75  41  48  37 /  10  10   0  10 
GAGE OK           68  23  43  22 /   0   0   0  10 
PONCA CITY OK     65  28  41  25 /   0   0   0  20 
DURANT OK         71  48  55  40 /  10  30  20  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/24/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1037 AM CST SAT JAN 29 2011

.UPDATE...
HAVE RAISED FORECAST MAX TEMPERATURES A COUPLE OF DEGREES IN THE
SOUTHWEST... AND ADJUSTED DEWPOINTS BASED ON CURRENT TRENDS. FIRE
WEATHER CONCERNS REMAIN FOR TODAY AND ADJUSTED DEWPOINTS GIVE A
BROADER AREA WITH MIN RH LESS THAN 20 PERCENT TODAY... ALTHOUGH
SUSTAINED WIND SPEEDS ARE NOT EXPECTED TO BE SUFFICIENT FOR A RED
FLAG. ALSO WINDS ARE SUPPOSED TO BACK SOMEWHAT TODAY ACROSS MOST
OF THE AREA WHICH WILL ALLOW SOMEWHAT HIGHER DEWPOINTS IN NORTH
TEXAS TO BEGIN SPREADING INTO THE AREA... ALTHOUGH WINDS MAY STAY
MORE VEERED THIS AFTERNOON ACROSS WESTERN PORTIONS OF THE FORECAST
AREA KEEPING DEWPOINTS LOW THROUGH THE AFTERNOON IN THE WEST.

&&

.PREV DISCUSSION... /ISSUED 949 AM CST SAT JAN 29 2011/ 

AVIATION...
18Z TAFS... MAIN QUESTION IS WHETHER POST-FRONTAL STRATUS WILL GET 
INTO OK TONIGHT AND SUNDAY MORNING. INITIAL FRONT/WINDSHIFT IS  
CURRENTLY ACROSS NCENTRAL/NE OK BUT LOW CLOUDS ARE CONFINED TO A 
SECONDARY COLD SURGE NOW MOVING S INTO NEB/IA. MODEL RH PROGS DEPICT 
A SHALLOW LAYER OF LOW-LEVEL SATURATION BEHIND THE FRONT AS THIS 
COLDER AIR BEGINS TO WORK S INTO THE AREA OVERNIGHT. THUS WE WILL
MAINTAIN LOW-MVFR CIGS IN THE TAFS ACROSS N AND CENTRAL OK LATE
TONIGHT AND SUNDAY MORNING. 

PREV DISCUSSION... /ISSUED 547 AM CST SAT JAN 29 2011/ 

AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH 00Z WITH OCCASIONAL BKN HIGH
CLOUDS SPREADING IN THIS AFTERNOON. A WEAK SURFACE TROUGH IN
NORTHERN OK WILL DRIFT BACK NORTH INTO KS TODAY. A COLD FRONT WILL
MOVE SOUTH INTO NORTHERN OK AROUND 00Z... REACHING TO NEAR THE RED
RIVER BY THE END OF THE FORECAST PERIOD. LOW CEILINGS AROUND 1K FT
WILL MOVE INTO THE TERMINAL AREAS 1-3 HOURS AFTER FRONTAL PASSAGE.

PREV DISCUSSION... /ISSUED 449 AM CST SAT JAN 29 2011/ 

DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO 
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER 
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT. 

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS 
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM 
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW 
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN 
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED. 
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA 
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE 
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER 
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  72  36  44  33 /   0  10   0  10 
HOBART OK         72  33  42  31 /   0   0   0  10 
WICHITA FALLS TX  77  41  48  37 /  10  10   0  10 
GAGE OK           68  23  43  22 /   0   0   0  10 
PONCA CITY OK     65  28  41  25 /   0   0   0  20 
DURANT OK         71  48  55  40 /  10  30  20  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
320 PM CST SAT JAN 29 2011

.DISCUSSION...
FIRE... THEN ICE. DRY BREEZY AND RECORD OR NEAR-RECORD WARM CONDITIONS
LEADING TO HOT SPOTS BREAKING OUT ALL ACROSS THE AREA THIS
AFTERNOON. WINDS DECREASING THIS EVENING BEFORE SHIFTING TO NORTH
AS COLD FRONT OVER CENTRAL/SW KS MOVES S THROUGH AREA TONIGHT
BRINGING FIRST SHOT OF COLDER AIR. UPPER SYSTEM OVER TX WILL
MAINTAIN LOW CHANCES OF -RA SE TONIGHT INTO SUNDAY.

COLD SFC HIGH HAS BUILT NICELY OVER CANADA AND WILL PROVIDE THE
COLD AIR THROUGH MONDAY TO SET UP A POTENTIAL MAJOR MESS MONDAY
NIGHT AND TUESDAY. WINTER STORM WATCH IS INEVITIBLE BUT WE WILL
HOLD OFF FOR NOW DUE TO THE WORST OF THE EVENT LIKELY UNFOLDING IN
PERIODS 5/6. STILL MANY VARIABLES AND UNCERTAINTIES REGARDING
PRECIP TYPE AND AMOUNTS - ANOTHER REASON WE ARE HOLDING OFF ON
HEADLINES FOR THE TIME BEING. IT LOOKS LIKE A TRANSITION FROM
RA/DZ TO ICE TO SNOW WILL BE RATHER SWIFT AS THE COLD AIR POURS IN
MONDAY NIGHT AND TUESDAY MORNING. LARGE-SCALE PATTERN FAVORS HEAVY
SNOW SOMEWHERE ACROSS THE AREA BUT TRACK OF UPPER SYSTEM IS
UNCERTAIN AND THEREFORE SO IS THE LOCATION OF THE HEAVIEST
ACCUMULATIONS. STRONG WINDS LEADING TO BLOWING/DRIFTING SNOW AND
POSSIBLY BLIZZARD OR NEAR-BLIZZARD CONDITIONS SOME AREAS BY
TUESDAY... AND DANGEROUS WIND CHILLS -10 TO -20 BY WED MORNING. 

ALL RESOURCES TODAY ARE BEING BROUGHT TO BEAR ON THE COMPLEX
EVOLUTION OF EVENTS FROM NOW THROUGH TUE-WED... SO NO BIG CHANGES
AT THIS TIME TO THE FORECAST BEYOND THAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  37  44  31  44 /  10   0  10  10 
HOBART OK         33  43  27  44 /   0   0  10  10 
WICHITA FALLS TX  39  49  28  53 /  10   0  10  10 
GAGE OK           23  39  20  35 /   0   0  10  10 
PONCA CITY OK     28  41  25  37 /  10   0  10  10 
DURANT OK         54  56  37  52 /  20  20  20  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
550 PM CST SAT JAN 29 2011

.AVIATION...
COLD FRONT IS EXPECTED TO MOVE INTO NRN OK THIS EVENING AND THE 
PROGRESS SWD THROUGH THE AREA BY SUNDAY MORNING. POST FRONTAL ST 
EXPECTED TO LAG WINDSHIFT A BIT...BUT MOST SITES SHOULD SEE MVFR 
CIGS DEVELOP. 

&&

.PREV DISCUSSION... /ISSUED 320 PM CST SAT JAN 29 2011/

.DISCUSSION...
FIRE... THEN ICE. DRY BREEZY AND RECORD OR NEAR-RECORD WARM 
CONDITIONS LEADING TO HOT SPOTS BREAKING OUT ALL ACROSS THE AREA THIS
AFTERNOON. WINDS DECREASING THIS EVENING BEFORE SHIFTING TO NORTH AS 
COLD FRONT OVER CENTRAL/SW KS MOVES S THROUGH AREA TONIGHT BRINGING 
FIRST SHOT OF COLDER AIR. UPPER SYSTEM OVER TX WILL MAINTAIN LOW 
CHANCES OF -RA SE TONIGHT INTO SUNDAY.

COLD SFC HIGH HAS BUILT NICELY OVER CANADA AND WILL PROVIDE THE
COLD AIR THROUGH MONDAY TO SET UP A POTENTIAL MAJOR MESS MONDAY
NIGHT AND TUESDAY. WINTER STORM WATCH IS INEVITIBLE BUT WE WILL
HOLD OFF FOR NOW DUE TO THE WORST OF THE EVENT LIKELY UNFOLDING IN
PERIODS 5/6. STILL MANY VARIABLES AND UNCERTAINTIES REGARDING
PRECIP TYPE AND AMOUNTS - ANOTHER REASON WE ARE HOLDING OFF ON
HEADLINES FOR THE TIME BEING. IT LOOKS LIKE A TRANSITION FROM
RA/DZ TO ICE TO SNOW WILL BE RATHER SWIFT AS THE COLD AIR POURS IN
MONDAY NIGHT AND TUESDAY MORNING. LARGE-SCALE PATTERN FAVORS HEAVY
SNOW SOMEWHERE ACROSS THE AREA BUT TRACK OF UPPER SYSTEM IS
UNCERTAIN AND THEREFORE SO IS THE LOCATION OF THE HEAVIEST
ACCUMULATIONS. STRONG WINDS LEADING TO BLOWING/DRIFTING SNOW AND
POSSIBLY BLIZZARD OR NEAR-BLIZZARD CONDITIONS SOME AREAS BY
TUESDAY... AND DANGEROUS WIND CHILLS -10 TO -20 BY WED MORNING. 

ALL RESOURCES TODAY ARE BEING BROUGHT TO BEAR ON THE COMPLEX
EVOLUTION OF EVENTS FROM NOW THROUGH TUE-WED... SO NO BIG CHANGES
AT THIS TIME TO THE FORECAST BEYOND THAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  37  44  31  44 /  10   0  10  10 
HOBART OK         33  43  27  44 /   0   0  10  10 
WICHITA FALLS TX  39  49  28  53 /  10   0  10  10 
GAGE OK           23  39  20  35 /   0   0  10  10 
PONCA CITY OK     28  41  25  37 /  10   0  10  10 
DURANT OK         54  56  37  52 /  20  20  20  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
929 PM CST SAT JAN 29 2011

.DISCUSSION...
THE INITIAL COLD FRONT IS PROGRESSING SOUTH ACROSS OUR FAR
NORTHERN COUNTIES. IT APPEARS TO BE RIGHT ON SCHEDULE... AND
SHOULD REACH OKLAHOMA CITY AROUND MIDNIGHT... THEN EXIT OUT
FORECAST AREA TOMORROW MORNING AROUND SUNRISE. PRE-FRONTAL WINDS
HAVE DROPPED OFF A LOT... AND TEMPERATURES JUST AHEAD OF THE FRONT
HAVE DROPPED DRAMATICALLY AS VERY DRY AIR... LIGHT WINDS... AND
CLEAR SKIES ALLOW FOR VERY EFFICIENT RADIATIONAL COOLING. ONCE THE
FRONT ARRIVES... MANY OF THOSE LOCATIONS WILL SEE THE TEMPERATURE
RISE SUBSTANTIALLY... BEFORE FALLING BACK AGAIN AS THE COLD-AIR
ADVECTION SETS IN.

OTHER THAN THE WIND SHIFT... AND SIGNIFICANT INCREASE IN WIND
SPEEDS... FIRE WEATHER CONDITIONS WILL BECOME MUCH LESS SUPPORTIVE
OF WILDFIRES OVERNIGHT.

FINALLY... A FEW THUNDERSTORMS HAVE FORMED OVER TEXAS... SOUTHWEST
OF THE METROPLEX. THERE IS A SMALL CHANCE THAT SOME OF THIS
CONVECTION WILL AFFECT PARTS OF SOUTH-CENTRAL AND SOUTHEAST
OKLAHOMA OVERNIGHT. IT IS IMPROBABLE THAT THUNDERSTORMS WILL OCCUR
AS FAR NORTH AS OUR FORECAST AREA... BUT A FEW SHOWERS ARE CERTAINLY A
POSSIBILITY.

THE CURRENT FORECAST GENERALLY LOOKS GOOD... OTHER THAN BEING
UNABLE TO ACCOUNT FOR THE WILDLY VARYING TEMPERATURES OVER SHORT
DISTANCES... DUE TO TERRAIN FEATURES AND RADIATIONAL COOLING. AT
THIS TIME... NO UPDATES ARE PLANNED FOR THE OVERNIGHT FORECAST.

&&

.PREV DISCUSSION... /ISSUED 550 PM CST SAT JAN 29 2011/ 

AVIATION...
COLD FRONT IS EXPECTED TO MOVE INTO NRN OK THIS EVENING AND THE 
PROGRESS SWD THROUGH THE AREA BY SUNDAY MORNING. POST FRONTAL ST 
EXPECTED TO LAG WINDSHIFT A BIT...BUT MOST SITES SHOULD SEE MVFR 
CIGS DEVELOP. 

PREV DISCUSSION... /ISSUED 320 PM CST SAT JAN 29 2011/

DISCUSSION...
FIRE... THEN ICE. DRY BREEZY AND RECORD OR NEAR-RECORD WARM 
CONDITIONS LEADING TO HOT SPOTS BREAKING OUT ALL ACROSS THE AREA THIS
AFTERNOON. WINDS DECREASING THIS EVENING BEFORE SHIFTING TO NORTH AS 
COLD FRONT OVER CENTRAL/SW KS MOVES S THROUGH AREA TONIGHT BRINGING 
FIRST SHOT OF COLDER AIR. UPPER SYSTEM OVER TX WILL MAINTAIN LOW 
CHANCES OF -RA SE TONIGHT INTO SUNDAY.

COLD SFC HIGH HAS BUILT NICELY OVER CANADA AND WILL PROVIDE THE
COLD AIR THROUGH MONDAY TO SET UP A POTENTIAL MAJOR MESS MONDAY
NIGHT AND TUESDAY. WINTER STORM WATCH IS INEVITIBLE BUT WE WILL
HOLD OFF FOR NOW DUE TO THE WORST OF THE EVENT LIKELY UNFOLDING IN
PERIODS 5/6. STILL MANY VARIABLES AND UNCERTAINTIES REGARDING
PRECIP TYPE AND AMOUNTS - ANOTHER REASON WE ARE HOLDING OFF ON
HEADLINES FOR THE TIME BEING. IT LOOKS LIKE A TRANSITION FROM
RA/DZ TO ICE TO SNOW WILL BE RATHER SWIFT AS THE COLD AIR POURS IN
MONDAY NIGHT AND TUESDAY MORNING. LARGE-SCALE PATTERN FAVORS HEAVY
SNOW SOMEWHERE ACROSS THE AREA BUT TRACK OF UPPER SYSTEM IS
UNCERTAIN AND THEREFORE SO IS THE LOCATION OF THE HEAVIEST
ACCUMULATIONS. STRONG WINDS LEADING TO BLOWING/DRIFTING SNOW AND
POSSIBLY BLIZZARD OR NEAR-BLIZZARD CONDITIONS SOME AREAS BY
TUESDAY... AND DANGEROUS WIND CHILLS -10 TO -20 BY WED MORNING. 

ALL RESOURCES TODAY ARE BEING BROUGHT TO BEAR ON THE COMPLEX
EVOLUTION OF EVENTS FROM NOW THROUGH TUE-WED... SO NO BIG CHANGES
AT THIS TIME TO THE FORECAST BEYOND THAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  37  44  31  44 /  10   0  10  10 
HOBART OK         33  43  27  44 /   0   0  10  10 
WICHITA FALLS TX  39  49  28  53 /  10   0  10  10 
GAGE OK           23  39  20  35 /   0   0  10  10 
PONCA CITY OK     28  41  25  37 /  10   0  10  10 
DURANT OK         54  56  37  52 /  20  20  20  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
422 AM CST SUN JAN 30 2011

.DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST. 

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  46  31  43  17 /   0   0  10  70 
HOBART OK         44  27  42  15 /   0   0  10  60 
WICHITA FALLS TX  52  28  56  25 /   0   0  10  70 
GAGE OK           41  20  30   7 /   0   0  20  50 
PONCA CITY OK     40  25  37  16 /   0  10  20  70 
DURANT OK         58  37  54  29 /  10  10  10  90 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
547 AM CST SUN JAN 30 2011

.AVIATION...
/12Z TAFS/
MVFR CEILINGS... WITH A FEW AREAS LOWERING TO IFR... LOCATED ACROSS
CENTRAL... WESTERN... AND NORTHERN OK WILL CONTINUE TO SPREAD
SOUTH THIS MORNING. THE LOW CLOUDS WILL BREAK UP ACROSS WESTERN OK
AND NORTH TX BY AFTERNOON WITH CEILINGS GRADUALLY LIFTING OVER THE
REMAINDER OF THE AREA. GUSTY N-NE WINDS THIS MORNING WILL DIMINISH
THIS AFTERNOON. LOW CLOUDS AND LIGHT FOG WILL FILL BACK INTO
WESTERN OK AND NORTH TX TOWARDS THE END OF THE FORECAST PERIOD.

&&

.PREV DISCUSSION... /ISSUED 422 AM CST SUN JAN 30 2011/ 

DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST. 

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  46  31  43  17 /   0   0  10  70 
HOBART OK         44  27  42  15 /   0   0  10  60 
WICHITA FALLS TX  52  28  56  25 /   0   0  10  70 
GAGE OK           41  20  30   7 /   0   0  20  50 
PONCA CITY OK     40  25  37  16 /   0  10  20  70 
DURANT OK         58  37  54  29 /  10  10  10  90 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

06/32/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1009 AM CST SUN JAN 30 2011

.UPDATE...
MAIN UPDATE TO THE PACKAGE THIS MORNING IS TO BE MUCH MORE
PESSIMISTIC WITH CLOUD COVER... AND THEREFORE THE TEMPERATURE
RECOVERY FOR THIS AFTERNOON. SO HAVE INCREASED CLOUD COVERAGE AND
DECREASED AFTERNOON TEMPERATURES. FRONT HAS MOVED THROUGH ALL BUT
THE EXTREME SOUTHEAST PART OF THE WARNING AREA AND TEMPERATURES
WILL BE TURNING COLDER IN ATOKA AND DURANT AS THE FRONT MOVES
THROUGH. STILL INVESTIGATING LATEST MODEL DATA FOR THE MONDAY
NIGHT/TUESDAY STORM SYSTEM.

&&

.PREV DISCUSSION... /ISSUED 547 AM CST SUN JAN 30 2011/ 

AVIATION...
/12Z TAFS/
MVFR CEILINGS... WITH A FEW AREAS LOWERING TO IFR... LOCATED ACROSS
CENTRAL... WESTERN... AND NORTHERN OK WILL CONTINUE TO SPREAD
SOUTH THIS MORNING. THE LOW CLOUDS WILL BREAK UP ACROSS WESTERN OK
AND NORTH TX BY AFTERNOON WITH CEILINGS GRADUALLY LIFTING OVER THE
REMAINDER OF THE AREA. GUSTY N-NE WINDS THIS MORNING WILL DIMINISH
THIS AFTERNOON. LOW CLOUDS AND LIGHT FOG WILL FILL BACK INTO
WESTERN OK AND NORTH TX TOWARDS THE END OF THE FORECAST PERIOD.

PREV DISCUSSION... /ISSUED 422 AM CST SUN JAN 30 2011/ 

DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST. 

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  42  32  44  14 /   0   0  10  70 
HOBART OK         41  28  42  11 /   0   0  10  60 
WICHITA FALLS TX  49  31  48  15 /   0   0  10  70 
GAGE OK           38  18  30   8 /   0   0  20  50 
PONCA CITY OK     38  23  41  14 /   0  10  20  70 
DURANT OK         56  41  48  28 /  10  10  10  90 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1148 AM CST SUN JAN 30 2011

.AVIATION...
LOW CLOUDS ARE PERSISTENT AND WILL KEEP LOW CLOUDS MORE WIDESPREAD
WITH THIS TAF PACKAGE. CLOUDS ERODING AT SOUTHERN END OVER NORTH
TEXAS WILL LIKELY ALLOW CLOUD EROSION AT KSPS THIS AFTERNOON...
AND SUBSIDENCE OVER KANSAS MAY MOVE INTO NORTHERN OKLAHOMA TAF
SITES TEMPORARILY THIS AFTERNOON/EVENING. OTHERWISE HAVE IMPROVED
CIGS AT MOST STATIONS TO MVFR FOR A WHILE THIS AFTERNOON AND
EVENING BUT KEPT THE CEILINGS DESPITE COMPUTER MODEL TENDENCIES
TO COMPLETELY ERODE THE LOW CLOUDS. LOW LEVELS REMAIN QUITE MOIST
AND EXPECT CIGS AND VSBYS TO LOWER AGAIN OVERNIGHT WITH IFR TO
LIFR CONDITIONS EXPECTED AT MOST STATIONS. BEYOND THE VALID TIME
OF THESE TAFS... POOR FLIGHT CONDITIONS ARE EXPECTED TO PERSIST
WITH WINTER STORM AND ASSOCIATED WINTER PRECIPITATION AND HIGH
WINDS MOVING THROUGH THE AREA MONDAY NIGHT AND TUESDAY WITH
CHANCES OF FREEZING RAIN... SLEET AND SNOW.. AND WIND GUSTS OVER
30 KNOTS EXPECTED.

&&

.PREV DISCUSSION... /ISSUED 1009 AM CST SUN JAN 30 2011/ 

UPDATE...
MAIN UPDATE TO THE PACKAGE THIS MORNING IS TO BE MUCH MORE
PESSIMISTIC WITH CLOUD COVER... AND THEREFORE THE TEMPERATURE
RECOVERY FOR THIS AFTERNOON. SO HAVE INCREASED CLOUD COVERAGE AND
DECREASED AFTERNOON TEMPERATURES. FRONT HAS MOVED THROUGH ALL BUT
THE EXTREME SOUTHEAST PART OF THE WARNING AREA AND TEMPERATURES
WILL BE TURNING COLDER IN ATOKA AND DURANT AS THE FRONT MOVES
THROUGH. STILL INVESTIGATING LATEST MODEL DATA FOR THE MONDAY
NIGHT/TUESDAY STORM SYSTEM.

PREV DISCUSSION... /ISSUED 547 AM CST SUN JAN 30 2011/ 

AVIATION...
/12Z TAFS/
MVFR CEILINGS... WITH A FEW AREAS LOWERING TO IFR... LOCATED ACROSS
CENTRAL... WESTERN... AND NORTHERN OK WILL CONTINUE TO SPREAD
SOUTH THIS MORNING. THE LOW CLOUDS WILL BREAK UP ACROSS WESTERN OK
AND NORTH TX BY AFTERNOON WITH CEILINGS GRADUALLY LIFTING OVER THE
REMAINDER OF THE AREA. GUSTY N-NE WINDS THIS MORNING WILL DIMINISH
THIS AFTERNOON. LOW CLOUDS AND LIGHT FOG WILL FILL BACK INTO
WESTERN OK AND NORTH TX TOWARDS THE END OF THE FORECAST PERIOD.

PREV DISCUSSION... /ISSUED 422 AM CST SUN JAN 30 2011/ 

DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST. 

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  42  32  44  14 /   0   0  10  70 
HOBART OK         41  28  42  11 /   0   0  10  60 
WICHITA FALLS TX  49  31  48  15 /   0   0  10  70 
GAGE OK           38  18  30   8 /   0   0  20  50 
PONCA CITY OK     38  23  41  14 /   0  10  20  70 
DURANT OK         56  41  48  28 /  10  10  10  90 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
232 PM CST SUN JAN 30 2011

.DISCUSSION...
POTENTIALLY CRIPPLING COMBINATION OF WIND... COLD AND WINTER PRECIP NOW 
APPEARS IMMINENT FOR MUCH OF THE AREA MONDAY NIGHT INTO TUESDAY. WE 
WILL BE ISSUING A PDS VERSION OF THE WSW BY 3 PM WHICH WILL EXPAND 
THE WINTER STORM WATCH INTO THE REST OF WCENTRAL/SW OK AND OUR TX 
ZONES... UPGRADE CENTRAL AND NCENTRAL OK TO A WINTER STORM WARNING 
WHERE CONFIDENCE IS HIGHEST IN THE POTENTIAL FOR MAJOR IMPACTS... 
AND ADD A WIND CHILL WATCH FOR NW OK WHERE COMPUTED WIND CHILLS ARE 
-15 OR LESS DURING MUCH OF THE PERIOD FROM LATE MON NIGHT INTO WED 
MORNING. PARTS OF THE AREA EVENTUALLY COULD NEED AN UPGRADE TO 
BLIZZARD WARNING BY TUESDAY MORNING. 

CONDITIONS LOOK OKAY FOR THE MOST PART BETWEEN NOW AND LATE 
MONDAY... ALTHOUGH PARTS OF N AND CENTRAL OK MAY HAVE TO DEAL WITH A 
LITTLE FREEZING DRIZZLE LATER TONIGHT INTO MONDAY. WE WILL HANDLE 
THAT WITH AN ADVISORY IF NEEDED. OTHERWISE THE EMPHASIS AT THIS TIME 
IS ON GETTING EVERYONE TO TAKE PROPER STEPS NOW BY OBTAINING 
NECESSARY PROVISIONS... AND NOT PLANNING ON GOING ANYWHERE FROM LATE 
MONDAY NIGHT INTO TUESDAY UNLESS ABSOLUTELY NECESSARY.

ALL INDICATIONS ARE THAT CONDITIONS WILL DETERIORATE RAPIDLY AT SOME 
POINT MONDAY NIGHT AS N-NE WINDS INCREASE AND COLD AIR GETS COLDER 
AND DEEPER. PRECIP IS FORECAST TO INCREASE IN COVERAGE AND INTENSITY 
00-06Z AND ESPECIALLY 06-12Z MONDAY NIGHT. TRANSITION FROM LIQUID TO 
FREEZING TO FROZEN SHOULD BE FAIRLY RAPID GIVEN THE STRONG LOW-LEVEL 
COLD ADVECTION... ALTHOUGH SLEET MAY PERSIST INTO TUE MORNING SE 
PARTS OF AREA. LIMITED ICE ACCRETION WILL BE OFFSET BY STRONG 
WINDS... WHICH MAY BRING DOWN EVEN LIGHTLY-COATED TREES AND POWER 
LINES. FOCUS WILL BE LESS ON SNOW/ICE AMOUNTS AND MORE ON THE 
POTENTIAL FOR PARALYZING WINTER STORM CONDITIONS DUE TO SNOW AND 
BLOWING/DRIFTING ALONG WITH LIFE-THREATENING WIND CHILLS. THAT BEING 
SAID... WE CURRENTLY PAINT A BROAD BAND OF 4-8 INCHES CENTERED 
ROUGHLY LAWTON-OKC-STILLWATER WITH 2-5 OVER MUCH OF THE REST OF THE 
WATCH AREA. GIVEN THE LIKELIHOOD OF SEVERE BLOWING/DRIFTING... WE 
MAY NEVER REALLY KNOW. OBVIOUS ANALOG WOULD BE XMAS EVE 2009... AND 
FOR SOME AREAS THIS MAY BE AS BAD OR WORSE THAN THAT ONE. 

SNOW TAPERS OFF LATE TUE BUT WIND AND BLOWING/DRIFTING TO CONTINUE 
AS TEMPS AND WIND CHILLS DROP FURTHER. WIND CHILL ADVISORIES 
CERTAINLY WILL BE NEEDED ON THE BACK SIDE OF THIS EVENT... OR WIND 
CHILL WARNINGS EXPANDED. THIS MAY BE THE COLDEST THAT MANY AREAS
HAVE EXPERIENCED IN YEARS.

STANDARD INITIALIZATION ROUTINE INVOKED FOR THE REST OF THE
FORECAST. MAY HAVE TO ADD SOME LOW POPS EVENTUALLY FOR ANOTHER
EVENT TOWARD THE END OF THE WORK WEEK BUT FOCUS IS SQUARELY ON THE
EARLY-WEEK EVENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  32  44  15  20 /  10  10 100 100 
HOBART OK         28  42  12  20 /   0  10  90  70 
WICHITA FALLS TX  31  48  16  20 /   0  10 100  70 
GAGE OK           18  30   9  14 /   0  10  70  60 
PONCA CITY OK     23  41  15  18 /  20  10 100 100 
DURANT OK         41  48  29  29 /  20  20 100 100 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR 
     OKZ007-008-012-013-018>020-023>031-040.

     WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR OKZ006-011-014>017-021-022-032>039-041-042-044>046-050.

     WIND CHILL WATCH FROM MONDAY EVENING THROUGH WEDNESDAY MORNING 
     FOR OKZ004-005-009-010.

TX...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR TXZ083>090.

&&

$$

24 & 26

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
540 PM CST SUN JAN 30 2011

.AVIATION...
ALTHOUGH LOW CLOUDS HAVE DIMINISHED AROUND THE PERIPHERY OF THE 
FA...CLOUDS HAVE PERSISTED AT TAF SITES. LOW LEVELS REMAIN MOIST AND 
WINDS TO REMAIN LIGHT AND BECOME MORE ELY. EXPECT CIGS/VSBYS TO  
DETERIORATE OVERNIGHT. IFR CONDITIONS LIKELY AT MOST SITES LATER 
TONIGHT. SOME IMPROVEMENT LIKELY DURING THE DAY ON MONDAY...BUT MVFR 
CONDITIONS MAY PREVAIL IN MOST AREAS. 

&&

.PREV DISCUSSION... /ISSUED 232 PM CST SUN JAN 30 2011/

.DISCUSSION...
POTENTIALLY CRIPPLING COMBINATION OF WIND... COLD AND WINTER PRECIP 
NOW APPEARS IMMINENT FOR MUCH OF THE AREA MONDAY NIGHT INTO TUESDAY. 
WE WILL BE ISSUING A PDS VERSION OF THE WSW BY 3 PM WHICH WILL 
EXPAND THE WINTER STORM WATCH INTO THE REST OF WCENTRAL/SW OK AND 
OUR TX ZONES... UPGRADE CENTRAL AND NCENTRAL OK TO A WINTER STORM 
WARNING WHERE CONFIDENCE IS HIGHEST IN THE POTENTIAL FOR MAJOR 
IMPACTS... AND ADD A WIND CHILL WATCH FOR NW OK WHERE COMPUTED WIND 
CHILLS ARE -15 OR LESS DURING MUCH OF THE PERIOD FROM LATE MON NIGHT 
INTO WED MORNING. PARTS OF THE AREA EVENTUALLY COULD NEED AN UPGRADE 
TO BLIZZARD WARNING BY TUESDAY MORNING. 

CONDITIONS LOOK OKAY FOR THE MOST PART BETWEEN NOW AND LATE 
MONDAY... ALTHOUGH PARTS OF N AND CENTRAL OK MAY HAVE TO DEAL WITH A 
LITTLE FREEZING DRIZZLE LATER TONIGHT INTO MONDAY. WE WILL HANDLE 
THAT WITH AN ADVISORY IF NEEDED. OTHERWISE THE EMPHASIS AT THIS TIME 
IS ON GETTING EVERYONE TO TAKE PROPER STEPS NOW BY OBTAINING 
NECESSARY PROVISIONS... AND NOT PLANNING ON GOING ANYWHERE FROM LATE 
MONDAY NIGHT INTO TUESDAY UNLESS ABSOLUTELY NECESSARY.

ALL INDICATIONS ARE THAT CONDITIONS WILL DETERIORATE RAPIDLY AT SOME 
POINT MONDAY NIGHT AS N-NE WINDS INCREASE AND COLD AIR GETS COLDER 
AND DEEPER. PRECIP IS FORECAST TO INCREASE IN COVERAGE AND INTENSITY 
00-06Z AND ESPECIALLY 06-12Z MONDAY NIGHT. TRANSITION FROM LIQUID TO 
FREEZING TO FROZEN SHOULD BE FAIRLY RAPID GIVEN THE STRONG LOW-LEVEL 
COLD ADVECTION... ALTHOUGH SLEET MAY PERSIST INTO TUE MORNING SE 
PARTS OF AREA. LIMITED ICE ACCRETION WILL BE OFFSET BY STRONG 
WINDS... WHICH MAY BRING DOWN EVEN LIGHTLY-COATED TREES AND POWER 
LINES. FOCUS WILL BE LESS ON SNOW/ICE AMOUNTS AND MORE ON THE 
POTENTIAL FOR PARALYZING WINTER STORM CONDITIONS DUE TO SNOW AND 
BLOWING/DRIFTING ALONG WITH LIFE-THREATENING WIND CHILLS. THAT BEING 
SAID... WE CURRENTLY PAINT A BROAD BAND OF 4-8 INCHES CENTERED 
ROUGHLY LAWTON-OKC-STILLWATER WITH 2-5 OVER MUCH OF THE REST OF THE 
WATCH AREA. GIVEN THE LIKELIHOOD OF SEVERE BLOWING/DRIFTING... WE 
MAY NEVER REALLY KNOW. OBVIOUS ANALOG WOULD BE XMAS EVE 2009... AND 
FOR SOME AREAS THIS MAY BE AS BAD OR WORSE THAN THAT ONE. 

SNOW TAPERS OFF LATE TUE BUT WIND AND BLOWING/DRIFTING TO CONTINUE 
AS TEMPS AND WIND CHILLS DROP FURTHER. WIND CHILL ADVISORIES 
CERTAINLY WILL BE NEEDED ON THE BACK SIDE OF THIS EVENT... OR WIND 
CHILL WARNINGS EXPANDED. THIS MAY BE THE COLDEST THAT MANY AREAS
HAVE EXPERIENCED IN YEARS.

STANDARD INITIALIZATION ROUTINE INVOKED FOR THE REST OF THE
FORECAST. MAY HAVE TO ADD SOME LOW POPS EVENTUALLY FOR ANOTHER
EVENT TOWARD THE END OF THE WORK WEEK BUT FOCUS IS SQUARELY ON THE
EARLY-WEEK EVENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  32  44  15  20 /  10  10 100 100 
HOBART OK         28  42  12  20 /   0  10  90  70 
WICHITA FALLS TX  31  48  16  20 /   0  10 100  70 
GAGE OK           18  30   9  14 /   0  10  70  60 
PONCA CITY OK     23  41  15  18 /  20  10 100 100 
DURANT OK         41  48  29  29 /  20  20 100 100 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR 
     OKZ007-008-012-013-018>020-023>031-040.

     WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY 
AFTERNOON      FOR 
OKZ006-011-014>017-021-022-032>039-041-042-044>046-050.

     WIND CHILL WATCH FROM MONDAY EVENING THROUGH WEDNESDAY MORNING 
     FOR OKZ004-005-009-010.

TX...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY 
AFTERNOON      FOR TXZ083>090.

&&

$$

24 & 26

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
948 PM CST SUN JAN 30 2011

.DISCUSSION...
LOW-LEVEL MOISTURE IS MAINTAINING A LARGE AREA OF CLOUD COVER OVER
OUR FORECAST AREA THIS EVENING. THE SOUTHERN EDGE OF THE CLOUDS
FORMS A ZIGZAG PATTERN ACROSS THE SOUTHERN PART OF OUR AREA. THE
WIND PATTERN OVER THE NEXT 24 HOURS OR SO SUGGESTS THAT THE
SOUTHERN EDGE MAY WELL REMAIN FAIRLY RAGGED... AND THAT OUR TEXAS
AND SOUTHERN OKLAHOMA COUNTIES MAY SEE A LITTLE SUN NOW AND THEN
DURING THE DAY TOMORROW. WE WILL RAISE THE DAYTIME TEMPERATURES A
BIT FOR THE SOUTH AS A RESULT. THIS... HOWEVER... IS A LOW-
CONFIDENCE CHANGE.

SIMILARLY... PERSISTENT CLOUD COVER WILL HOLD TEMPERATURES UP
OVERNIGHT OVER MOST OF OKLAHOMA. THIS MEANS THAT WE WILL RAISE
MINIMUM TEMPERATURES SIGNIFICANTLY IN A FEW SPOTS IN NORTHERN
OKLAHOMA. THIS WILL ALSO LEAD TO NON-DIURNAL TEMPERATURE PATTERNS
TOMORROW... AS DAYTIME HIGHS IN MANY PLACES WILL BE REACHED EARLY
IN THE DAY.

RADAR IN HIGH-SENSITIVITY MODE SHOWS SOME WEAK ECHOES... ALTHOUGH
SURFACE REPORTS SHOW NOTHING HITTING THE GROUND AT THIS POINT.
GIVEN THE SATURATED LOW-LEVELS OF THE ATMOSPHERE... AND SOME WEAK
ISENTROPIC LIFT FORECAST OVERNIGHT... WE WILL RETAIN THE DRIZZLE
AND FREEZING DRIZZLE CHANCES NEAR AND EAST OF I-35.

THE BIG STORM TOMORROW NIGHT AND TUESDAY STILL LOOKS LIKE IT WILL
BE MAINLY SNOW... EXCEPT OVER SOUTH-CENTRAL AND SOUTHEAST
OKLAHOMA... WHERE A LONGER PERIOD OF FREEZING DRIZZLE/RAIN OR
SLEET APPEARS MORE LIKELY. MODEL DATA ARE STILL COMING IN... SO WE
WILL NOT MAKE ANY CHANGES TO LATER PERIODS AT THIS POINT.

&&

.PREV DISCUSSION... /ISSUED 540 PM CST SUN JAN 30 2011/ 

AVIATION...
ALTHOUGH LOW CLOUDS HAVE DIMINISHED AROUND THE PERIPHERY OF THE 
FA...CLOUDS HAVE PERSISTED AT TAF SITES. LOW LEVELS REMAIN MOIST AND 
WINDS TO REMAIN LIGHT AND BECOME MORE ELY. EXPECT CIGS/VSBYS TO  
DETERIORATE OVERNIGHT. IFR CONDITIONS LIKELY AT MOST SITES LATER 
TONIGHT. SOME IMPROVEMENT LIKELY DURING THE DAY ON MONDAY...BUT MVFR 
CONDITIONS MAY PREVAIL IN MOST AREAS. 

PREV DISCUSSION... /ISSUED 232 PM CST SUN JAN 30 2011/

DISCUSSION...
POTENTIALLY CRIPPLING COMBINATION OF WIND... COLD AND WINTER PRECIP 
NOW APPEARS IMMINENT FOR MUCH OF THE AREA MONDAY NIGHT INTO TUESDAY. 
WE WILL BE ISSUING A PDS VERSION OF THE WSW BY 3 PM WHICH WILL 
EXPAND THE WINTER STORM WATCH INTO THE REST OF WCENTRAL/SW OK AND 
OUR TX ZONES... UPGRADE CENTRAL AND NCENTRAL OK TO A WINTER STORM 
WARNING WHERE CONFIDENCE IS HIGHEST IN THE POTENTIAL FOR MAJOR 
IMPACTS... AND ADD A WIND CHILL WATCH FOR NW OK WHERE COMPUTED WIND 
CHILLS ARE -15 OR LESS DURING MUCH OF THE PERIOD FROM LATE MON NIGHT 
INTO WED MORNING. PARTS OF THE AREA EVENTUALLY COULD NEED AN UPGRADE 
TO BLIZZARD WARNING BY TUESDAY MORNING. 

CONDITIONS LOOK OKAY FOR THE MOST PART BETWEEN NOW AND LATE 
MONDAY... ALTHOUGH PARTS OF N AND CENTRAL OK MAY HAVE TO DEAL WITH A 
LITTLE FREEZING DRIZZLE LATER TONIGHT INTO MONDAY. WE WILL HANDLE 
THAT WITH AN ADVISORY IF NEEDED. OTHERWISE THE EMPHASIS AT THIS TIME 
IS ON GETTING EVERYONE TO TAKE PROPER STEPS NOW BY OBTAINING 
NECESSARY PROVISIONS... AND NOT PLANNING ON GOING ANYWHERE FROM LATE 
MONDAY NIGHT INTO TUESDAY UNLESS ABSOLUTELY NECESSARY.

ALL INDICATIONS ARE THAT CONDITIONS WILL DETERIORATE RAPIDLY AT SOME 
POINT MONDAY NIGHT AS N-NE WINDS INCREASE AND COLD AIR GETS COLDER 
AND DEEPER. PRECIP IS FORECAST TO INCREASE IN COVERAGE AND INTENSITY 
00-06Z AND ESPECIALLY 06-12Z MONDAY NIGHT. TRANSITION FROM LIQUID TO 
FREEZING TO FROZEN SHOULD BE FAIRLY RAPID GIVEN THE STRONG LOW-LEVEL 
COLD ADVECTION... ALTHOUGH SLEET MAY PERSIST INTO TUE MORNING SE 
PARTS OF AREA. LIMITED ICE ACCRETION WILL BE OFFSET BY STRONG 
WINDS... WHICH MAY BRING DOWN EVEN LIGHTLY-COATED TREES AND POWER 
LINES. FOCUS WILL BE LESS ON SNOW/ICE AMOUNTS AND MORE ON THE 
POTENTIAL FOR PARALYZING WINTER STORM CONDITIONS DUE TO SNOW AND 
BLOWING/DRIFTING ALONG WITH LIFE-THREATENING WIND CHILLS. THAT BEING 
SAID... WE CURRENTLY PAINT A BROAD BAND OF 4-8 INCHES CENTERED 
ROUGHLY LAWTON-OKC-STILLWATER WITH 2-5 OVER MUCH OF THE REST OF THE 
WATCH AREA. GIVEN THE LIKELIHOOD OF SEVERE BLOWING/DRIFTING... WE 
MAY NEVER REALLY KNOW. OBVIOUS ANALOG WOULD BE XMAS EVE 2009... AND 
FOR SOME AREAS THIS MAY BE AS BAD OR WORSE THAN THAT ONE. 

SNOW TAPERS OFF LATE TUE BUT WIND AND BLOWING/DRIFTING TO CONTINUE 
AS TEMPS AND WIND CHILLS DROP FURTHER. WIND CHILL ADVISORIES 
CERTAINLY WILL BE NEEDED ON THE BACK SIDE OF THIS EVENT... OR WIND 
CHILL WARNINGS EXPANDED. THIS MAY BE THE COLDEST THAT MANY AREAS
HAVE EXPERIENCED IN YEARS.

STANDARD INITIALIZATION ROUTINE INVOKED FOR THE REST OF THE
FORECAST. MAY HAVE TO ADD SOME LOW POPS EVENTUALLY FOR ANOTHER
EVENT TOWARD THE END OF THE WORK WEEK BUT FOCUS IS SQUARELY ON THE
EARLY-WEEK EVENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  28  42  15  20 /  10  10 100 100 
HOBART OK         26  42  12  20 /   0  10  90  70 
WICHITA FALLS TX  29  55  16  20 /   0  10 100  70 
GAGE OK           24  30   9  14 /   0  10  70  60 
PONCA CITY OK     28  37  15  18 /  20  10 100 100 
DURANT OK         38  56  29  29 /  20  20 100 100 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR 
     OKZ007-008-012-013-018>020-023>031-040.

     WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR OKZ006-011-014>017-021-022-032>039-041-042-044>046-050.

     WIND CHILL WATCH FROM MONDAY EVENING THROUGH WEDNESDAY MORNING 
     FOR OKZ004-005-009-010.

TX...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON 
     FOR TXZ083>090.

&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
412 AM CST MON JAN 31 2011

.DISCUSSION...
MAIN FOCUS CONTINUES TO BE ON DEVELOPING WINTER STORM THAT WILL
AFFECT THE AREA TONIGHT AND TUESDAY. UNTIL THEN... MOSTLY CLOUDY
AND COOL CONDITIONS WILL PREVAIL TODAY WITH SOME PATCHES OF VERY LIGHT
DRIZZLE/FREEZING DRIZZLE POSSIBLE ACROSS NORTHERN OKLAHOMA. BY
TONIGHT... AN UPPER LEVEL STORM SYSTEM WILL MOVE FROM THE SW US
AND INTO THE SOUTHERN PLAINS. AT THE SAME TIME... A STRONG HIGH
PRESSURE RIDGE WILL BUILD SOUTHWARD THROUGH THE PLAINS BRINGING
MUCH COLDER TEMPERATURES TO THE REGION. THE PAST FEW MODEL RUNS
CONTINUE TO SHOW PRETTY GOOD CONSISTENCY REGARDING THE LOCATION
AND AMOUNTS OF THE HEAVIER SNOWFALL. WE ARE STILL LOOKING FOR THE
HIGHEST AMOUNTS TO BE ACROSS CENTRAL AND NORTH CENTRAL OK WHERE
4-8 INCHES ARE EXPECTED... WITH ISOLATED HIGHER TOTALS POSSIBLE.
HOWEVER... WHILE WE HAVE NOTED THAT THE LATEST 06Z NAM DEVELOPS A
RATHER SHARP SNOWFALL GRADIENT GENERALLY NW OF I-44 IN CENTRAL
OK... WE WILL SEE IF THAT TREND PERSISTS IN OTHER MODELS AND LATER
RUNS.

WE EXPECT FREEZING/FROZEN PRECIPITATION TO DEVELOP THIS EVENING
AND INCREASE THROUGH THE NIGHT. AS THE COLD AIR DEEPENS... THE
MIXED PRECIPITATION WILL CHANGE OVER TO SNOW FROM NW TO SE TONIGHT
AND INTO EARLY TUESDAY. THE SOUTHEAST COULD SEE THE MOST ICE WITH
SOME FREEZING RAIN AND SLEET. THAT AREA WILL SHOULD ALSO HAVE THE
HIGHEST QPF AMOUNTS... BUT TIMING OF THE PHASE-CHANGES WILL BE
SOMEWHAT PROBLEMATIC. MEANWHILE... THE PRESENCE OF MID-LEVEL
CONVECTIVE INSTABILITY SUGGESTS THAT A FEW T-STORMS WILL ALSO BE
POSSIBLE OVER THE SOUTHERN HALF OF OK AND N-TX TONIGHT.

THE PRECIPITATION SHOULD DECREASE IN INTENSITY BY MIDDAY
TUESDAY... ALTHOUGH LIGHT SNOW COULD PERSIST THROUGH EARLY
EVENING. THE OTHER SIGNIFICANT ISSUE WILL BE THE STRONG WINDS AND
VERY COLD TEMPERATURES POURING INTO THE REGION TONIGHT AND
TUESDAY. NOT ONLY COULD THE WINTRY PRECIPITATION MAKE TRAVEL
HAZARDOUS... BUT DANGEROUS WIND CHILLS WILL ALSO BE A HAZARD FOR
ANYONE CAUGHT OUT IN THE WEATHER.

ONCE THE THE VERY COLD TEMPERATURES MOVE IN... WITH LOWS IN THE
SINGLE DIGITS AND EVEN FALLING BELOW ZERO IN PARTS OF NORTHERN
OK... MOST LOCATIONS WILL LIKELY NOT GET ABOVE FREEZING UNTIL
FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  41  14  16   5 /  10 100 100  20 
HOBART OK         38  11  15   2 /  10  90  70   0 
WICHITA FALLS TX  50  15  22   8 /  10 100  70   0 
GAGE OK           33   8  12  -3 /  10  70  60  10 
PONCA CITY OK     38  14  18   1 /  10 100 100  20 
DURANT OK         51  29  29  12 /  20 100 100  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY 
     FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

     WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST 
     TUESDAY FOR OKZ004-005-009-010-014-021-033-034-036-037-
     043>045-047-048-050>052.

     WIND CHILL WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING FOR 
     OKZ004-005-009-010.

TX...WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST 
     TUESDAY FOR TXZ083>090.

&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
547 AM CST MON JAN 31 2011

.AVIATION...
EXCEPT FOR SOME BREAKS IN THE CLOUD COVER TODAY NEAR AND SOUTH OF
THE RED RIVER... GENERALLY MVFR CONDITIONS WILL PREVAIL INTO THE
EVENING HOURS. OCCASIONAL IFR CEILINGS AND REDUCED VISIBILITIES IN
FOG WILL OCCUR ACROSS NW OK THIS MORNING. A DEVELOPING WINTER
STORM WILL SPREAD A WINTRY MIX OF PRECIPITATION ACROSS MUCH OF THE
REGION... BEGINNING IN NW OK THIS EVENING... AND SPREADING OVER ALL
TERMINALS DURING THE NIGHT. 

&&

.PREV DISCUSSION... /ISSUED 412 AM CST MON JAN 31 2011/ 

DISCUSSION...
MAIN FOCUS CONTINUES TO BE ON DEVELOPING WINTER STORM THAT WILL
AFFECT THE AREA TONIGHT AND TUESDAY. UNTIL THEN... MOSTLY CLOUDY
AND COOL CONDITIONS WILL PREVAIL TODAY WITH SOME PATCHES OF VERY LIGHT
DRIZZLE/FREEZING DRIZZLE POSSIBLE ACROSS NORTHERN OKLAHOMA. BY
TONIGHT... AN UPPER LEVEL STORM SYSTEM WILL MOVE FROM THE SW US
AND INTO THE SOUTHERN PLAINS. AT THE SAME TIME... A STRONG HIGH
PRESSURE RIDGE WILL BUILD SOUTHWARD THROUGH THE PLAINS BRINGING
MUCH COLDER TEMPERATURES TO THE REGION. THE PAST FEW MODEL RUNS
CONTINUE TO SHOW PRETTY GOOD CONSISTENCY REGARDING THE LOCATION
AND AMOUNTS OF THE HEAVIER SNOWFALL. WE ARE STILL LOOKING FOR THE
HIGHEST AMOUNTS TO BE ACROSS CENTRAL AND NORTH CENTRAL OK WHERE
4-8 INCHES ARE EXPECTED... WITH ISOLATED HIGHER TOTALS POSSIBLE.
HOWEVER... WHILE WE HAVE NOTED THAT THE LATEST 06Z NAM DEVELOPS A
RATHER SHARP SNOWFALL GRADIENT GENERALLY NW OF I-44 IN CENTRAL
OK... WE WILL SEE IF THAT TREND PERSISTS IN OTHER MODELS AND LATER
RUNS.

WE EXPECT FREEZING/FROZEN PRECIPITATION TO DEVELOP THIS EVENING
AND INCREASE THROUGH THE NIGHT. AS THE COLD AIR DEEPENS... THE
MIXED PRECIPITATION WILL CHANGE OVER TO SNOW FROM NW TO SE TONIGHT
AND INTO EARLY TUESDAY. THE SOUTHEAST COULD SEE THE MOST ICE WITH
SOME FREEZING RAIN AND SLEET. THAT AREA WILL SHOULD ALSO HAVE THE
HIGHEST QPF AMOUNTS... BUT TIMING OF THE PHASE-CHANGES WILL BE
SOMEWHAT PROBLEMATIC. MEANWHILE... THE PRESENCE OF MID-LEVEL
CONVECTIVE INSTABILITY SUGGESTS THAT A FEW T-STORMS WILL ALSO BE
POSSIBLE OVER THE SOUTHERN HALF OF OK AND N-TX TONIGHT.

THE PRECIPITATION SHOULD DECREASE IN INTENSITY BY MIDDAY
TUESDAY... ALTHOUGH LIGHT SNOW COULD PERSIST THROUGH EARLY
EVENING. THE OTHER SIGNIFICANT ISSUE WILL BE THE STRONG WINDS AND
VERY COLD TEMPERATURES POURING INTO THE REGION TONIGHT AND
TUESDAY. NOT ONLY COULD THE WINTRY PRECIPITATION MAKE TRAVEL
HAZARDOUS... BUT DANGEROUS WIND CHILLS WILL ALSO BE A HAZARD FOR
ANYONE CAUGHT OUT IN THE WEATHER.

ONCE THE THE VERY COLD TEMPERATURES MOVE IN... WITH LOWS IN THE
SINGLE DIGITS AND EVEN FALLING BELOW ZERO IN PARTS OF NORTHERN
OK... MOST LOCATIONS WILL LIKELY NOT GET ABOVE FREEZING UNTIL
FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  41  14  16   5 /  10 100 100  20 
HOBART OK         38  11  15   2 /  10  90  70   0 
WICHITA FALLS TX  50  15  22   8 /  10 100  70   0 
GAGE OK           33   8  12  -3 /  10  70  60  10 
PONCA CITY OK     38  14  18   1 /  10 100 100  20 
DURANT OK         51  29  29  12 /  20 100 100  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY 
     FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

     WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST 
     TUESDAY FOR OKZ004-005-009-010-014-021-033-034-036-037-
     043>045-047-048-050>052.

     WIND CHILL WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING FOR 
     OKZ004-005-009-010.

TX...WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST 
     TUESDAY FOR TXZ083>090.

&&

$$

06/32/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1139 AM CST MON JAN 31 2011

.AVIATION...
GENERALLY MVFR CONDITIONS WILL PREVAIL THROUGH THE AFTERNOON.
BIG CHANGES ARE ON THE WAY AS WE ARE CONTINUING TO WATCH A
DEVELOPING WINTER STORM. THE SIGNIFICANT WINTER STORM WILL BEGIN TO
AFFECT MUCH OF THE REGION LATE THIS EVENING INTO A GOOD PORTION OF
TOMORROW. A VARIETY OF WINTER WEATHER WILL AFFECT ALL SITES...
BEFORE SWITCHING OVER TO ALL SNOW BY 0112Z. IFR CONDITIONS WILL BE
THE RULE AS VISIBILITIES WILL FALL BELOW ONE MILE AT TIMES WITH
THE STRONG NORTH WINDS AND HEAVIER SNOWFALL. ALTHOUGH NOT INCLUDED
IN THIS FORECAST...IT IS NOT OUT OF THE QUESTION TO HAVE A PERIOD
OF LIFR CONDITIONS FROM KLAW...NORTHEAST THROUGH KOUN AND KOKC...
AND NORTH TO KPNC AFTER SUNRISE TOMORROW MORNING. THE STORM SHOULD
BEGIN TO EXIT TOWARD THE END OF THE TAF PERIOD... ALTHOUGH LIGHT
SNOW... AND CONTINUED BLOWING SNOW WILL CONTINUE MOST AREAS.

&&

.PREV DISCUSSION... /ISSUED 547 AM CST MON JAN 31 2011/ 

AVIATION...
EXCEPT FOR SOME BREAKS IN THE CLOUD COVER TODAY NEAR AND SOUTH OF
THE RED RIVER... GENERALLY MVFR CONDITIONS WILL PREVAIL INTO THE
EVENING HOURS. OCCASIONAL IFR CEILINGS AND REDUCED VISIBILITIES IN
FOG WILL OCCUR ACROSS NW OK THIS MORNING. A DEVELOPING WINTER
STORM WILL SPREAD A WINTRY MIX OF PRECIPITATION ACROSS MUCH OF THE
REGION... BEGINNING IN NW OK THIS EVENING... AND SPREADING OVER ALL
TERMINALS DURING THE NIGHT. 

PREV DISCUSSION... /ISSUED 412 AM CST MON JAN 31 2011/ 

DISCUSSION...
MAIN FOCUS CONTINUES TO BE ON DEVELOPING WINTER STORM THAT WILL
AFFECT THE AREA TONIGHT AND TUESDAY. UNTIL THEN... MOSTLY CLOUDY
AND COOL CONDITIONS WILL PREVAIL TODAY WITH SOME PATCHES OF VERY LIGHT
DRIZZLE/FREEZING DRIZZLE POSSIBLE ACROSS NORTHERN OKLAHOMA. BY
TONIGHT... AN UPPER LEVEL STORM SYSTEM WILL MOVE FROM THE SW US
AND INTO THE SOUTHERN PLAINS. AT THE SAME TIME... A STRONG HIGH
PRESSURE RIDGE WILL BUILD SOUTHWARD THROUGH THE PLAINS BRINGING
MUCH COLDER TEMPERATURES TO THE REGION. THE PAST FEW MODEL RUNS
CONTINUE TO SHOW PRETTY GOOD CONSISTENCY REGARDING THE LOCATION
AND AMOUNTS OF THE HEAVIER SNOWFALL. WE ARE STILL LOOKING FOR THE
HIGHEST AMOUNTS TO BE ACROSS CENTRAL AND NORTH CENTRAL OK WHERE
4-8 INCHES ARE EXPECTED... WITH ISOLATED HIGHER TOTALS POSSIBLE.
HOWEVER... WHILE WE HAVE NOTED THAT THE LATEST 06Z NAM DEVELOPS A
RATHER SHARP SNOWFALL GRADIENT GENERALLY NW OF I-44 IN CENTRAL
OK... WE WILL SEE IF THAT TREND PERSISTS IN OTHER MODELS AND LATER
RUNS.

WE EXPECT FREEZING/FROZEN PRECIPITATION TO DEVELOP THIS EVENING
AND INCREASE THROUGH THE NIGHT. AS THE COLD AIR DEEPENS... THE
MIXED PRECIPITATION WILL CHANGE OVER TO SNOW FROM NW TO SE TONIGHT
AND INTO EARLY TUESDAY. THE SOUTHEAST COULD SEE THE MOST ICE WITH
SOME FREEZING RAIN AND SLEET. THAT AREA WILL SHOULD ALSO HAVE THE
HIGHEST QPF AMOUNTS... BUT TIMING OF THE PHASE-CHANGES WILL BE
SOMEWHAT PROBLEMATIC. MEANWHILE... THE PRESENCE OF MID-LEVEL
CONVECTIVE INSTABILITY SUGGESTS THAT A FEW T-STORMS WILL ALSO BE
POSSIBLE OVER THE SOUTHERN HALF OF OK AND N-TX TONIGHT.

THE PRECIPITATION SHOULD DECREASE IN INTENSITY BY MIDDAY
TUESDAY... ALTHOUGH LIGHT SNOW COULD PERSIST THROUGH EARLY
EVENING. THE OTHER SIGNIFICANT ISSUE WILL BE THE STRONG WINDS AND
VERY COLD TEMPERATURES POURING INTO THE REGION TONIGHT AND
TUESDAY. NOT ONLY COULD THE WINTRY PRECIPITATION MAKE TRAVEL
HAZARDOUS... BUT DANGEROUS WIND CHILLS WILL ALSO BE A HAZARD FOR
ANYONE CAUGHT OUT IN THE WEATHER.

ONCE THE THE VERY COLD TEMPERATURES MOVE IN... WITH LOWS IN THE
SINGLE DIGITS AND EVEN FALLING BELOW ZERO IN PARTS OF NORTHERN
OK... MOST LOCATIONS WILL LIKELY NOT GET ABOVE FREEZING UNTIL
FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  41  14  16   5 /  10 100 100  20 
HOBART OK         38  11  15   2 /  10  90  70   0 
WICHITA FALLS TX  50  15  22   8 /  10 100  70   0 
GAGE OK           33   8  12  -3 /  10  70  60  10 
PONCA CITY OK     38  14  18   1 /  10 100 100  20 
DURANT OK         51  29  29  12 /  20 100 100  20 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY 
     FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

     WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST 
     TUESDAY FOR OKZ004-005-009-010-014-021-033-034-036-037-
     043>045-047-048-050>052.

     WIND CHILL WATCH FROM 6 PM CST THIS EVENING THROUGH WEDNESDAY 
     MORNING FOR OKZ004-005-009-010.

TX...WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST 
     TUESDAY FOR TXZ083>090.

&&

$$

TY/24/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
346 PM CST MON JAN 31 2011

.DISCUSSION...
...BLIZZARD AND OTHER DANGEROUS WINTER WEATHER TUESDAY...

AN UPPER TROUGH WILL SWING INTO A NEGATIVELY TILTED CONFIGURATION AS 
IT IS KICKED OUT OF THE DESERT SOUTHWEST TOWARD CENTRAL OKLAHOMA 
TUESDAY MORNING. THE TROUGH WILL ENCOUNTER A TIGHTENING FRONTAL ZONE 
SEPARATING HUMID MARITIME POLAR AIR FROM MID WINTER ARCTIC. DEEP 
CYCLOGENESIS WILL OCCUR OVER OKLAHOMA AND NORTH TEXAS. LIFTING IS 
TYPICALLY MOST INTENSE DURING THIS TYPE OF DEEPENING...MEANING 
WIDESPREAD PRECIPITATION...RELATIVELY HEAVY FOR MID WINTER.

DURING THE EVENING...MOST SHOWERS CONFINED TO THE RED RIVER AREA. 
PRECIP WILL INCREASE AFTER MIDNIGHT...AND AS THE CYCLONE DEVELOPS 
THERE WILL BE A TRANSITION OF PRECIP TYPE. A WARM NOSE IN THE 
SOUNDINGS...LEFT OVER FROM OUR ANOMALOUSLY WARM WEEKEND...WILL LEAD 
TO A PERIOD OF RAIN...FREEZING RAIN...AND SLEET FROM CENTRAL 
OKLAHOMA SOUTHWESTWARD. THIS CREATES SOME CONFUSION... AS THE NAM 
SNOW ALGORITHM KICKS OUT HEAVY SNOW IN A BAND ACROSS NORTH TEXAS AND 
SOUTHERN OKLAHOMA TONIGHT. GIVEN A STRONG 3-5 DEGREE CELSIUS WARM 
NOSE...ATOP INCREASING SURFACE COLD ADVECTION...THIS BAND WILL 
LIKELY CONSIST OF FREEZING RAIN AND SLEET. THUNDER IS ALSO LIKELY 
FROM CENTRAL OKLAHOMA SOUTHWESTWARD. WE INCREASED ICE ACCUMULATION 
UP TO ONE QUARTER INCH...AND THIS IS ONE REASON OUR SNOW TOTALS 
DECREASE TOWARD THE SOUTH...ESPECIALLY SINCE THE STRONG LIFT WILL 
SHIFT UP INTO CENTRAL AND NORTHERN OKLAHOMA BY THE TIME TEMPERATURES 
ARE SUPPORTIVE OF ALL SNOW. AN EARLIER CHANGEOVER...THOUGH...WOULD 
MEAN MORE SNOW...POSSIBLY HEAVY...INTO SOUTH CENTRAL AND EAST 
CENTRAL OKLAHOMA. LATER SHIFTS WILL NEED TO WATCH THIS CLOSELY.

BY MORNING...THE MID LEVEL TROUGH WILL CLOSE OFF...AND MODELS ARE 
FAIRLY CONSISTENT IN PLACEMENT OF THE 700 MB LOW NEAR OR JUST EAST 
OF OKLAHOMA CITY BY 9 AM TO NOON. FORECAST SOUNDINGS SHOW STEEP 
UPPER LEVEL LAPSE RATES AND STRONG...DEEP ASCENT...CAPABLE OF 
PRODUCING HEAVY SNOW AND EVEN ISOLATED THUNDER. THIS IS REFLECTED IN 
THE SNOW GRIDS FROM THE NAM AND SREF...WHICH PRODUCE IMPRESSIVE SNOW 
RATES...MORE THAN ONE INCH PER HOUR...DURING THE MORNING. ALSO ON 
TUESDAY...THE GRADIENT BETWEEN A 1052 MB ARCTIC HIGH AND ROUGHLY 995 
MB LOW WILL DRIVE A DANGEROUS NORTHWESTERLY WIND DURING AND 
FOLLOWING THE STORM. THE MOS CAME UP CLOSER TO WHAT WE WOULD EXPECT 
WITH THIS GRADIENT...FORECASTING 35 MPH SUSTAINED WINDS. GUSTS OVER 
45 MPH SHOULD BE COMMON. FOR THIS REASON...WE UPGRADED TO BLIZZARD 
WARNING IN THE AREA WHERE HEAVY SNOW RATES ARE MOST CERTAIN. NEAR 
BLIZZARD CONDITIONS ARE LIKELY TO EXIST ELSEWHERE AS WELL...AND IT 
WILL GENERALLY BE AN EXTREMELY DANGEROUS DAY TO BE TRAVELING. EVEN 
PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED. WIND CHILL 
TEMPERATURES WILL BE COLDER THAN MANY OKLAHOMANS AND TEXANS HAVE 
EXPERIENCED IN MORE THAN TEN YEARS.

BECAUSE A WIND CHILL WATCH HAD BEEN IN EFFECT IN THE NORTHWEST...WE 
UPGRADED TO WARNING THERE THROUGH WEDNESDAY MORNING. OTHER AREAS 
WILL NEED A WIND CHILL ADVISORY BY TUESDAY EVENING...BUT FOR NOW WE 
HAVE WRAPPED THE WIND CHILL MESSAGE INTO THE BLIZZARD AND WINTER 
STORM WARNING PRODUCTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  16  17   5  12 / 100 100  20  10 
HOBART OK         13  16   2  12 /  90  70   0   0 
WICHITA FALLS TX  19  23   8  15 / 100  70   0  10 
GAGE OK            9  13  -3  14 /  80  60  10  10 
PONCA CITY OK     15  19   1  13 / 100 100  20  10 
DURANT OK         28  30  12  17 / 100 100  20  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY FOR 
     OKZ008-012-013-018>020-024>026-029-030.

     WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY 
     FOR OKZ004>007-009>011-014>017-021>023-027-028-031>047-050-
     051.

     WIND CHILL WARNING FROM 6 PM TUESDAY TO NOON CST WEDNESDAY FOR 
     OKZ004-005-009-010-014.

     WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO 6 PM CST 
     TUESDAY FOR OKZ048-052.

TX...WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY 
     FOR TXZ083>090.

&&

$$

24/22
BURKE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
533 PM CST MON JAN 31 2011

.AVIATION...
A NARROW BAND OF VFR CONDITIONS AFFECTING KLAW AND KSPS WILL FILL
IN THIS EVENING. ALSO... A SMALL AREA OF CONVECTION IS LIKELY TO
REACH KSPS BEFORE WEAKENING. TEMPERATURE PROFILES SUGGEST SOME PL
WILL MIX WITH RAIN IN THE STORMS. CONDITIONS WILL DETERIORATE
RAPIDLY OVERNIGHT... FROM WEST TO EAST... MOSTLY AFTER 04Z THIS
EVENING. EXPECT EXTREMELY POOR CONDITIONS IN SN/BLSN AT KOKC...
KOUN... AND KPNC TOMORROW MORNING... AND POOR CONDITIONS
ELSEWHERE. ALTHOUGH THE SNOWFALL SHOULD TAPER OFF SIGNIFICANTLY IN
THE AFTERNOON... STRONG WINDS WILL CONTINUE... AND BLSN IS
EXPECTED TO DIMINISH SLOWLY WITH TIME.

&&

.PREV DISCUSSION... /ISSUED 346 PM CST MON JAN 31 2011/ 

DISCUSSION...
..BLIZZARD AND OTHER DANGEROUS WINTER WEATHER TUESDAY...

AN UPPER TROUGH WILL SWING INTO A NEGATIVELY TILTED CONFIGURATION AS 
IT IS KICKED OUT OF THE DESERT SOUTHWEST TOWARD CENTRAL OKLAHOMA 
TUESDAY MORNING. THE TROUGH WILL ENCOUNTER A TIGHTENING FRONTAL ZONE 
SEPARATING HUMID MARITIME POLAR AIR FROM MID WINTER ARCTIC. DEEP 
CYCLOGENESIS WILL OCCUR OVER OKLAHOMA AND NORTH TEXAS. LIFTING IS 
TYPICALLY MOST INTENSE DURING THIS TYPE OF DEEPENING...MEANING 
WIDESPREAD PRECIPITATION...RELATIVELY HEAVY FOR MID WINTER.

DURING THE EVENING...MOST SHOWERS CONFINED TO THE RED RIVER AREA. 
PRECIP WILL INCREASE AFTER MIDNIGHT...AND AS THE CYCLONE DEVELOPS 
THERE WILL BE A TRANSITION OF PRECIP TYPE. A WARM NOSE IN THE 
SOUNDINGS...LEFT OVER FROM OUR ANOMALOUSLY WARM WEEKEND...WILL LEAD 
TO A PERIOD OF RAIN...FREEZING RAIN...AND SLEET FROM CENTRAL 
OKLAHOMA SOUTHWESTWARD. THIS CREATES SOME CONFUSION... AS THE NAM 
SNOW ALGORITHM KICKS OUT HEAVY SNOW IN A BAND ACROSS NORTH TEXAS AND 
SOUTHERN OKLAHOMA TONIGHT. GIVEN A STRONG 3-5 DEGREE CELSIUS WARM 
NOSE...ATOP INCREASING SURFACE COLD ADVECTION...THIS BAND WILL 
LIKELY CONSIST OF FREEZING RAIN AND SLEET. THUNDER IS ALSO LIKELY 
FROM CENTRAL OKLAHOMA SOUTHWESTWARD. WE INCREASED ICE ACCUMULATION 
UP TO ONE QUARTER INCH...AND THIS IS ONE REASON OUR SNOW TOTALS 
DECREASE TOWARD THE SOUTH...ESPECIALLY SINCE THE STRONG LIFT WILL 
SHIFT UP INTO CENTRAL AND NORTHERN OKLAHOMA BY THE TIME TEMPERATURES 
ARE SUPPORTIVE OF ALL SNOW. AN EARLIER CHANGEOVER...THOUGH...WOULD 
MEAN MORE SNOW...POSSIBLY HEAVY...INTO SOUTH CENTRAL AND EAST 
CENTRAL OKLAHOMA. LATER SHIFTS WILL NEED TO WATCH THIS CLOSELY.

BY MORNING...THE MID LEVEL TROUGH WILL CLOSE OFF...AND MODELS ARE 
FAIRLY CONSISTENT IN PLACEMENT OF THE 700 MB LOW NEAR OR JUST EAST 
OF OKLAHOMA CITY BY 9 AM TO NOON. FORECAST SOUNDINGS SHOW STEEP 
UPPER LEVEL LAPSE RATES AND STRONG...DEEP ASCENT...CAPABLE OF 
PRODUCING HEAVY SNOW AND EVEN ISOLATED THUNDER. THIS IS REFLECTED IN 
THE SNOW GRIDS FROM THE NAM AND SREF...WHICH PRODUCE IMPRESSIVE SNOW 
RATES...MORE THAN ONE INCH PER HOUR...DURING THE MORNING. ALSO ON 
TUESDAY...THE GRADIENT BETWEEN A 1052 MB ARCTIC HIGH AND ROUGHLY 995 
MB LOW WILL DRIVE A DANGEROUS NORTHWESTERLY WIND DURING AND 
FOLLOWING THE STORM. THE MOS CAME UP CLOSER TO WHAT WE WOULD EXPECT 
WITH THIS GRADIENT...FORECASTING 35 MPH SUSTAINED WINDS. GUSTS OVER 
45 MPH SHOULD BE COMMON. FOR THIS REASON...WE UPGRADED TO BLIZZARD 
WARNING IN THE AREA WHERE HEAVY SNOW RATES ARE MOST CERTAIN. NEAR 
BLIZZARD CONDITIONS ARE LIKELY TO EXIST ELSEWHERE AS WELL...AND IT 
WILL GENERALLY BE AN EXTREMELY DANGEROUS DAY TO BE TRAVELING. EVEN 
PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED. WIND CHILL 
TEMPERATURES WILL BE COLDER THAN MANY OKLAHOMANS AND TEXANS HAVE 
EXPERIENCED IN MORE THAN TEN YEARS.

BECAUSE A WIND CHILL WATCH HAD BEEN IN EFFECT IN THE NORTHWEST...WE 
UPGRADED TO WARNING THERE THROUGH WEDNESDAY MORNING. OTHER AREAS 
WILL NEED A WIND CHILL ADVISORY BY TUESDAY EVENING...BUT FOR NOW WE 
HAVE WRAPPED THE WIND CHILL MESSAGE INTO THE BLIZZARD AND WINTER 
STORM WARNING PRODUCTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  16  17   5  12 / 100 100  20  10 
HOBART OK         13  16   2  12 /  90  70   0   0 
WICHITA FALLS TX  19  23   8  15 / 100  70   0  10 
GAGE OK            9  13  -3  14 /  80  60  10  10 
PONCA CITY OK     15  19   1  13 / 100 100  20  10 
DURANT OK         28  30  12  17 / 100 100  20  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY FOR 
     OKZ008-012-013-018>020-024>026-029-030.

     WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY 
     FOR OKZ004>007-009>011-014>017-021>023-027-028-031>047-050-
     051.

     WIND CHILL WARNING FROM 6 PM TUESDAY TO NOON CST WEDNESDAY FOR 
     OKZ004-005-009-010-014.

     WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO 6 PM CST 
     TUESDAY FOR OKZ048-052.

TX...WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY 
     FOR TXZ083>090.

&&

$$

02/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1145 PM CST MON JAN 31 2011

.AVIATION...
CONDITIONS WILL CONTINUE TO DETERIORATE RAPIDLY OVERNIGHT AS A
WINTER STORM SYSTEM MOVES INTO TEXAS AND OKLAHOMA. MAXIMUM LIFT
LOOKS LIKE IT WILL OCCUR BETWEEN 06Z AND 12Z AT MOST SITES...
WHICH SHOULD CORRESPOND TO THE HEAVIEST SNOWFALL. STRONG NORTH
WINDS WILL CAUSE EXTREMELY LOW VISIBILITIES AND CEILINGS IN
BLOWING SNOW. THE SNOW SHOULD TAPER OFF TOWARD 1800Z TOMORROW...
BUT WINDS WILL CONTINUE... AND CONDITIONS WILL BE MVFR AT THE VERY
BEST DURING THE AFTERNOON. WINDS SHOULD SUBSIDE SOMEWHAT AFTER
0000Z TOMORROW EVENING... REDUCING THE BLOWING SNOW... AND
RESULTING IN... WE HOPE... VFR OR HIGH-END MVFR CONDITIONS AT
MOST SITES. IT APPEARS THE KOKC AND KOUN WILL TAKE THE BRUNT OF
THE SNOWFALL... AND THEREFORE THE BLSN. WE HAVE INCLUDED A ZERO
VSBY AT KOUN DURING THE EXPECTED HEIGHT OF THE STORM... AS
SNOWFALL RATES ARE EXPECTED TO BE EXTREMELY HIGH FOR A COUPLE OF
HOURS.

&&

.PREV DISCUSSION... /ISSUED 533 PM CST MON JAN 31 2011/ 

AVIATION...
A NARROW BAND OF VFR CONDITIONS AFFECTING KLAW AND KSPS WILL FILL
IN THIS EVENING. ALSO... A SMALL AREA OF CONVECTION IS LIKELY TO
REACH KSPS BEFORE WEAKENING. TEMPERATURE PROFILES SUGGEST SOME PL
WILL MIX WITH RAIN IN THE STORMS. CONDITIONS WILL DETERIORATE
RAPIDLY OVERNIGHT... FROM WEST TO EAST... MOSTLY AFTER 04Z THIS
EVENING. EXPECT EXTREMELY POOR CONDITIONS IN SN/BLSN AT KOKC...
KOUN... AND KPNC TOMORROW MORNING... AND POOR CONDITIONS
ELSEWHERE. ALTHOUGH THE SNOWFALL SHOULD TAPER OFF SIGNIFICANTLY IN
THE AFTERNOON... STRONG WINDS WILL CONTINUE... AND BLSN IS
EXPECTED TO DIMINISH SLOWLY WITH TIME.

PREV DISCUSSION... /ISSUED 346 PM CST MON JAN 31 2011/ 

DISCUSSION...
.BLIZZARD AND OTHER DANGEROUS WINTER WEATHER TUESDAY...

AN UPPER TROUGH WILL SWING INTO A NEGATIVELY TILTED CONFIGURATION AS 
IT IS KICKED OUT OF THE DESERT SOUTHWEST TOWARD CENTRAL OKLAHOMA 
TUESDAY MORNING. THE TROUGH WILL ENCOUNTER A TIGHTENING FRONTAL ZONE 
SEPARATING HUMID MARITIME POLAR AIR FROM MID WINTER ARCTIC. DEEP 
CYCLOGENESIS WILL OCCUR OVER OKLAHOMA AND NORTH TEXAS. LIFTING IS 
TYPICALLY MOST INTENSE DURING THIS TYPE OF DEEPENING...MEANING 
WIDESPREAD PRECIPITATION...RELATIVELY HEAVY FOR MID WINTER.

DURING THE EVENING...MOST SHOWERS CONFINED TO THE RED RIVER AREA. 
PRECIP WILL INCREASE AFTER MIDNIGHT...AND AS THE CYCLONE DEVELOPS 
THERE WILL BE A TRANSITION OF PRECIP TYPE. A WARM NOSE IN THE 
SOUNDINGS...LEFT OVER FROM OUR ANOMALOUSLY WARM WEEKEND...WILL LEAD 
TO A PERIOD OF RAIN...FREEZING RAIN...AND SLEET FROM CENTRAL 
OKLAHOMA SOUTHWESTWARD. THIS CREATES SOME CONFUSION... AS THE NAM 
SNOW ALGORITHM KICKS OUT HEAVY SNOW IN A BAND ACROSS NORTH TEXAS AND 
SOUTHERN OKLAHOMA TONIGHT. GIVEN A STRONG 3-5 DEGREE CELSIUS WARM 
NOSE...ATOP INCREASING SURFACE COLD ADVECTION...THIS BAND WILL 
LIKELY CONSIST OF FREEZING RAIN AND SLEET. THUNDER IS ALSO LIKELY 
FROM CENTRAL OKLAHOMA SOUTHWESTWARD. WE INCREASED ICE ACCUMULATION 
UP TO ONE QUARTER INCH...AND THIS IS ONE REASON OUR SNOW TOTALS 
DECREASE TOWARD THE SOUTH...ESPECIALLY SINCE THE STRONG LIFT WILL 
SHIFT UP INTO CENTRAL AND NORTHERN OKLAHOMA BY THE TIME TEMPERATURES 
ARE SUPPORTIVE OF ALL SNOW. AN EARLIER CHANGEOVER...THOUGH...WOULD 
MEAN MORE SNOW...POSSIBLY HEAVY...INTO SOUTH CENTRAL AND EAST 
CENTRAL OKLAHOMA. LATER SHIFTS WILL NEED TO WATCH THIS CLOSELY.

BY MORNING...THE MID LEVEL TROUGH WILL CLOSE OFF...AND MODELS ARE 
FAIRLY CONSISTENT IN PLACEMENT OF THE 700 MB LOW NEAR OR JUST EAST 
OF OKLAHOMA CITY BY 9 AM TO NOON. FORECAST SOUNDINGS SHOW STEEP 
UPPER LEVEL LAPSE RATES AND STRONG...DEEP ASCENT...CAPABLE OF 
PRODUCING HEAVY SNOW AND EVEN ISOLATED THUNDER. THIS IS REFLECTED IN 
THE SNOW GRIDS FROM THE NAM AND SREF...WHICH PRODUCE IMPRESSIVE SNOW 
RATES...MORE THAN ONE INCH PER HOUR...DURING THE MORNING. ALSO ON 
TUESDAY...THE GRADIENT BETWEEN A 1052 MB ARCTIC HIGH AND ROUGHLY 995 
MB LOW WILL DRIVE A DANGEROUS NORTHWESTERLY WIND DURING AND 
FOLLOWING THE STORM. THE MOS CAME UP CLOSER TO WHAT WE WOULD EXPECT 
WITH THIS GRADIENT...FORECASTING 35 MPH SUSTAINED WINDS. GUSTS OVER 
45 MPH SHOULD BE COMMON. FOR THIS REASON...WE UPGRADED TO BLIZZARD 
WARNING IN THE AREA WHERE HEAVY SNOW RATES ARE MOST CERTAIN. NEAR 
BLIZZARD CONDITIONS ARE LIKELY TO EXIST ELSEWHERE AS WELL...AND IT 
WILL GENERALLY BE AN EXTREMELY DANGEROUS DAY TO BE TRAVELING. EVEN 
PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED. WIND CHILL 
TEMPERATURES WILL BE COLDER THAN MANY OKLAHOMANS AND TEXANS HAVE 
EXPERIENCED IN MORE THAN TEN YEARS.

BECAUSE A WIND CHILL WATCH HAD BEEN IN EFFECT IN THE NORTHWEST...WE 
UPGRADED TO WARNING THERE THROUGH WEDNESDAY MORNING. OTHER AREAS 
WILL NEED A WIND CHILL ADVISORY BY TUESDAY EVENING...BUT FOR NOW WE 
HAVE WRAPPED THE WIND CHILL MESSAGE INTO THE BLIZZARD AND WINTER 
STORM WARNING PRODUCTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  16  17   5  12 / 100 100  20  10 
HOBART OK         13  16   2  12 /  90  70   0   0 
WICHITA FALLS TX  19  23   8  15 / 100  70   0  10 
GAGE OK            9  13  -3  14 /  80  60  10  10 
PONCA CITY OK     15  19   1  13 / 100 100  20  10 
DURANT OK         28  30  12  17 / 100 100  20  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST TUESDAY FOR OKZ008-012-013-
     018>020-024>026-029-030.

     WINTER STORM WARNING UNTIL 6 PM CST TUESDAY FOR OKZ004>007-
     009>011-014>017-021>023-027-028-031>047-050-051.

     WIND CHILL WARNING FROM 6 PM TUESDAY TO NOON CST WEDNESDAY FOR 
     OKZ004-005-009-010-014.

     WINTER WEATHER ADVISORY UNTIL 6 PM CST TUESDAY FOR OKZ048-052.

TX...WINTER STORM WARNING UNTIL 6 PM CST TUESDAY FOR TXZ083>090.

&&

$$

32/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
425 AM CST TUE FEB 1 2011

.DISCUSSION...
SNOW IS THE DOMINANT PRECIP TYPE EARLY THIS MORNING WITH
SLEET AND SOME FREEZING RAIN LIMITED TO SOUTHEAST 1/4 OF 
FA. ATOKA AND DURANT ARE JUST BELOW FREEZING SO SOME ICE
ACCUMULATION LIKELY BEFORE PRECIP CHANGES TO SLEET AND 
SNOW. IMPRESSIVE SNOWFALL RATES HAVE BEEN RECEIVED WITHIN THE
PAST HOUR (2 TO 3 INCHES) WHICH COINCIDES WITH SEVERAL LIGHTNING
STRIKES POTTAWATOMIE COUNTY/GRADY. WHITEOUT CONDITIONS WILL OCCUR
WITHIN ENHANCED AREAS OF PRECIPITATION MAKING TRAVEL VERY
TREACHEROUS AT TIMES. INCREASED SNOWFALL AMOUNTS FARTHER SOUTH
INTO PARTS OF NORTH TEXAS SOUTH CENTRAL OKLAHOMA... BUT THIS AREA
SHOULD SEE PRECIP END FIRST AS TROUGH LIFTS NORTHEAST BY18-20Z.


SUSTAINED WINDS HAVE BEEN IN THE 25 TO 30 RANGE...ESPECIALLY
ACROSS NORTHERN OKLAHOMA BUT A GENERALLY INCREASE WILL LIKELY
OCCUR DURING THE MORNING AS THE SURFACE LOW DEEPENS AS IT MOVES
NORTHEAST INTO ARKATEX REGION.  FREQUENT GUSTS TO 40 HAVE ALSO
BEEN SEEN ACROSS WESTERN PARTS OF THE STATE.

AS SYSTEM MOVES EAST OF THE AREA LATE TODAY...CONSIDERABLE BLOWING
AND DRIFTING OF SNOW WILL OCCUR AS WINDS WILL REMAIN STRONG.
AS WINTER STORM/BLIZZARD WARNINGS ARE CANCELLED/EXPIRE WILL LIKELY
NEED TO PLACE MANY AREAS IN A WIND CHILL ADVISORY TONIGHT INTO WEDNESDAY. 

COLD WILL BE THE STORY THROUGH THE END OF THE WEEK AS THE COLD SURFACE
HIGH SETTLES OVER THE SOUTHERN PLAINS BY THURSDAY MORNING.  WITH
SUBSTANTIAL SNOW COVER MANY AREAS WILL SEE SUB-ZERO TEMPS...ESPECIALLY
ACROSS NORTHERN HALF OF FA.


SECOND TROUGH WILL MOVE ACROSS THE AREA FRIDAY INTO FRIDAY NIGHT
BUT PRECIP CHANCES WILL BE MINIMAL WITH THIS FEATURE.  TEMPERATURES
WILL WARM GOING INTO THE WEEKEND WITH SOUTHERLY WINDS BUT ANOTHER
BLAST OF COLD AIR SEEMS POSSIBLE SUNDAY INTO SUNDAY NIGHT.




&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  13   3  12   2 / 100  20  10  10 
HOBART OK         13   2  12   0 /  70   0   0  10 
WICHITA FALLS TX  19   8  15   5 /  70   0  10  10 
GAGE OK           13  -4  14  -7 /  60  10  10  10 
PONCA CITY OK     15  -3  13  -6 / 100  20  10  10 
DURANT OK         23   9  17   9 / 100  20  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
     018>020-024>026-029-030.

     WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
     009>011-014>017-021>023-027-028-031>047-050-051.

     WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY 
     FOR OKZ004-005-009-010-014.

     WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
     052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
556 AM CST TUE FEB 1 2011

.AVIATION...
PRECIP TYPE AT ALL TAF SITES WILL BE SNOW AND BLOWING
SNOW. BACK EDGE OF PERSISTENT PRECIPITATION HAS REACH
FAR WESTERN NORTH TEXAS AND THIS WILL CONTINUE INTO
SOUTHERN AND CENTRAL OKLAHOMA THIS MORNING. VLIFR TO IFR
CONDITIONS SHOULD IMPROVE MOST/ALL TAF SITES DURING THE
NEXT 3 TO 6 HOURS. STRONG NORTH WINDS WILL CREATE 
CONSIDERABLE BLSN SO WILL LEAVE IN SOME RESTRICTION TO
VISIBILITY INTO THE AFTERNOON/EVENING. 


&&

.PREV DISCUSSION... /ISSUED 425 AM CST TUE FEB 1 2011/ 

DISCUSSION...
SNOW IS THE DOMINANT PRECIP TYPE EARLY THIS MORNING WITH
SLEET AND SOME FREEZING RAIN LIMITED TO SOUTHEAST 1/4 OF 
FA. ATOKA AND DURANT ARE JUST BELOW FREEZING SO SOME ICE
ACCUMULATION LIKELY BEFORE PRECIP CHANGES TO SLEET AND 
SNOW. IMPRESSIVE SNOWFALL RATES HAVE BEEN RECEIVED WITHIN THE
PAST HOUR (2 TO 3 INCHES) WHICH COINCIDES WITH SEVERAL LIGHTNING
STRIKES POTTAWATOMIE COUNTY/GRADY. WHITEOUT CONDITIONS WILL OCCUR
WITHIN ENHANCED AREAS OF PRECIPITATION MAKING TRAVEL VERY
TREACHEROUS AT TIMES. INCREASED SNOWFALL AMOUNTS FARTHER SOUTH
INTO PARTS OF NORTH TEXAS SOUTH CENTRAL OKLAHOMA... BUT THIS AREA
SHOULD SEE PRECIP END FIRST AS TROUGH LIFTS NORTHEAST BY18-20Z.

SUSTAINED WINDS HAVE BEEN IN THE 25 TO 30 RANGE...ESPECIALLY
ACROSS NORTHERN OKLAHOMA BUT A GENERALLY INCREASE WILL LIKELY
OCCUR DURING THE MORNING AS THE SURFACE LOW DEEPENS AS IT MOVES
NORTHEAST INTO ARKATEX REGION.  FREQUENT GUSTS TO 40 HAVE ALSO
BEEN SEEN ACROSS WESTERN PARTS OF THE STATE.

AS SYSTEM MOVES EAST OF THE AREA LATE TODAY...CONSIDERABLE BLOWING
AND DRIFTING OF SNOW WILL OCCUR AS WINDS WILL REMAIN STRONG.
AS WINTER STORM/BLIZZARD WARNINGS ARE CANCELLED/EXPIRE WILL LIKELY
NEED TO PLACE MANY AREAS IN A WIND CHILL ADVISORY TONIGHT INTO WEDNESDAY. 

COLD WILL BE THE STORY THROUGH THE END OF THE WEEK AS THE COLD SURFACE
HIGH SETTLES OVER THE SOUTHERN PLAINS BY THURSDAY MORNING.  WITH
SUBSTANTIAL SNOW COVER MANY AREAS WILL SEE SUB-ZERO TEMPS...ESPECIALLY
ACROSS NORTHERN HALF OF FA.

SECOND TROUGH WILL MOVE ACROSS THE AREA FRIDAY INTO FRIDAY NIGHT
BUT PRECIP CHANCES WILL BE MINIMAL WITH THIS FEATURE.  TEMPERATURES
WILL WARM GOING INTO THE WEEKEND WITH SOUTHERLY WINDS BUT ANOTHER
BLAST OF COLD AIR SEEMS POSSIBLE SUNDAY INTO SUNDAY NIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  13   3  12   2 / 100  20  10  10 
HOBART OK         13   2  12   0 /  70   0   0  10 
WICHITA FALLS TX  19   8  15   5 /  70   0  10  10 
GAGE OK           13  -4  14  -7 /  60  10  10  10 
PONCA CITY OK     15  -3  13  -6 / 100  20  10  10 
DURANT OK         23   9  17   9 / 100  20  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
     018>020-024>026-029-030.

     WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
     009>011-014>017-021>023-027-028-031>047-050-051.

     WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY 
     FOR OKZ004-005-009-010-014.

     WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
     052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

01/01/01

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1047 AM CST TUE FEB 1 2011

.UPDATE...
...LIFE THREATENING WINTER STORM WILL CONTINUE THROUGH TODAY...

GETTING MORE REPORTS OF 8 INCHES OR MORE OF OBSERVED SNOW DEPTH IN
CENTRAL AND NORTH CENTRAL OKLAHOMA. RADAR AND SATELLITE TRENDS
SHOW PERSISTENT SNOWFALL IN NORTHERN OKLAHOMA...AND BANDS OF
MODERATE SNOWFALL CONTINUE TO FORM IN CENTRAL OKLAHOMA BEFORE
MERGING WITH THE AREA TO THE NORTH. OVERALL...WE WILL SEE A SLOW
EASTWARD TRANSLATION OF THE FALLING SNOW...BUT RUC 500 MB FORECAST
INDICATES LIFTING ASSOCIATED WITH THE UPPER LOW CIRCULATION...TO
CONTINUE THROUGH ABOUT 2 PM IN OKC METRO AREA...AND EVEN LATER
INTO THE AFTERNOON NORTHEAST OF OKC. THEREFORE...ADDITIONAL SNOW
ACCUMULATION ONE TO FOUR INCHES IS LIKELY.

IT IS VERY IMPORTANT TO NOTE...HOWEVER...THAT REGARDLESS OF WHERE
SNOW IS FALLING... /IT IS EXTREMELY DANGEROUS TO BE OUTSIDE
ANYWHERE IN OKLAHOMA AND WESTERN NORTH TEXAS TODAY/. WINDS WERE
GUSTING 40 TO 50 MPH... AND LOCALLY HIGHER IN FAVORED TERRAIN.
WIND CHILL TEMPERATURES WILL REMAIN AT 10 TO 20 BELOW ZERO FOR THE
NEXT 24 HOURS. PEOPLE TRYING TO TRAVEL...AND BECOMING STRANDED...
MAY SUFFER HYPOTHERMIA VERY QUICKLY IF EXPOSED TO THE ELEMENTS.
BLOWING SNOW WILL REDUCE VISIBILITY BELOW 1 MILE AT TIMES... EVEN
WHEN NEW SNOW IS NOT FALLING.

WE WILL KEEP THE BLIZZARD AND WINTER STORM HEADLINES IN PLACE
THROUGH THE AFTERNOON...AND WILL THEN PLAN TO TRANSITION TOWARD
WIND CHILL ADVISORIES AND WARNINGS AS THE UPPER LEVEL STORM AND
FALLING SNOW DEPART TOWARD THE EAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  12   3  12   2 / 100  20  10  10 
HOBART OK         12   2  12   0 /  40   0   0  10 
WICHITA FALLS TX  16   8  15   5 /  40   0  10  10 
GAGE OK            8  -4  14  -7 /  40  10  10  10 
PONCA CITY OK     11  -3  13  -6 / 100  20  10  10 
DURANT OK         23   9  17   9 /  40  20  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
     018>020-024>026-029-030.

     WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
     009>011-014>017-021>023-027-028-031>047-050-051.

     WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY 
     FOR OKZ004-005-009-010-014.

     WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
     052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

24/22



AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1145 AM CST TUE FEB 1 2011

.AVIATION...UPPER LOW TRACKING WEST TO EAST ACROSS OKLAHOMA. BANDS
OF LIGHT TO MODERATE SNOW WILL FORM NEAR AND NORTH OF THE LOW
TRACK...AFFECTING KOUN TO KOKC...AND EXPANDING IN COVERAGE TOWARD
KPNC...THROUGH MID AFTERNOON. THE WORST OF THE FALLING
SNOW...HOWEVER...HAD ENDED. WINDS AROUND 30 GUSTING 40-45 KNOTS
WILL MAINTAIN MVFR TO IFR VISIBILITY THROUGH 21-22 Z... THEN
EXPECT DECREASING WIND SPEEDS AND LESSER REDUCTION TO VISIBILITY.
BROKEN IFR CEILINGS WILL RAISE TO MVFR OR VFR BY EVENING...WITH
FAIRLY STEADY CONDITIONS THEREAFTER.

&&

.PREV DISCUSSION... /ISSUED 1047 AM CST TUE FEB 1 2011/ 

UPDATE...
..LIFE THREATENING WINTER STORM WILL CONTINUE THROUGH TODAY...

GETTING MORE REPORTS OF 8 INCHES OR MORE OF OBSERVED SNOW DEPTH IN
CENTRAL AND NORTH CENTRAL OKLAHOMA. RADAR AND SATELLITE TRENDS
SHOW PERSISTENT SNOWFALL IN NORTHERN OKLAHOMA...AND BANDS OF
MODERATE SNOWFALL CONTINUE TO FORM IN CENTRAL OKLAHOMA BEFORE
MERGING WITH THE AREA TO THE NORTH. OVERALL...WE WILL SEE A SLOW
EASTWARD TRANSLATION OF THE FALLING SNOW...BUT RUC 500 MB FORECAST
INDICATES LIFTING ASSOCIATED WITH THE UPPER LOW CIRCULATION...TO
CONTINUE THROUGH ABOUT 2 PM IN OKC METRO AREA...AND EVEN LATER
INTO THE AFTERNOON NORTHEAST OF OKC. THEREFORE...ADDITIONAL SNOW
ACCUMULATION ONE TO FOUR INCHES IS LIKELY.

IT IS VERY IMPORTANT TO NOTE...HOWEVER...THAT REGARDLESS OF WHERE
SNOW IS FALLING... /IT IS EXTREMELY DANGEROUS TO BE OUTSIDE
ANYWHERE IN OKLAHOMA AND WESTERN NORTH TEXAS TODAY/. WINDS WERE
GUSTING 40 TO 50 MPH... AND LOCALLY HIGHER IN FAVORED TERRAIN.
WIND CHILL TEMPERATURES WILL REMAIN AT 10 TO 20 BELOW ZERO FOR THE
NEXT 24 HOURS. PEOPLE TRYING TO TRAVEL...AND BECOMING STRANDED...
MAY SUFFER HYPOTHERMIA VERY QUICKLY IF EXPOSED TO THE ELEMENTS.
BLOWING SNOW WILL REDUCE VISIBILITY BELOW 1 MILE AT TIMES... EVEN
WHEN NEW SNOW IS NOT FALLING.

WE WILL KEEP THE BLIZZARD AND WINTER STORM HEADLINES IN PLACE
THROUGH THE AFTERNOON...AND WILL THEN PLAN TO TRANSITION TOWARD
WIND CHILL ADVISORIES AND WARNINGS AS THE UPPER LEVEL STORM AND
FALLING SNOW DEPART TOWARD THE EAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  12   3  12   2 / 100  20  10  10 
HOBART OK         12   2  12   0 /  40   0   0  10 
WICHITA FALLS TX  16   8  15   5 /  40   0  10  10 
GAGE OK            8  -4  14  -7 /  40  10  10  10 
PONCA CITY OK     11  -3  13  -6 / 100  20  10  10 
DURANT OK         23   9  17   9 /  40  20  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
     018>020-024>026-029-030.

     WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
     009>011-014>017-021>023-027-028-031>047-050-051.

     WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY 
     FOR OKZ004-005-009-010-014.

     WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
     052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

24/22/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
349 PM CST TUE FEB 1 2011

.DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS 
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS 
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS 
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER 
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT 
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING 
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING 
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS 
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL 
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND 
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS 
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED 
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS. 
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE 
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE 
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND 
WARNINGS THAT GO THROUGH THURSDAY MORNING. 

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT 
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR 
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER 
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE 
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A 
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND 
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER 
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE 
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE 
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY 
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED 
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW 
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO 
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC 
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND 
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO 
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL 
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK   8   0  10  -4 / 100  10  10   0 
HOBART OK          9   1  11  -3 /  40   0  10   0 
WICHITA FALLS TX  15   6  18   1 /  40   0  10  10 
GAGE OK            6  -4  15  -7 /  40   0   0   0 
PONCA CITY OK     10  -2  11  -8 / 100  10   0   0 
DURANT OK         14   5  15   2 /  40   0  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
     022>048-050>052.

     WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

     WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR 
     OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

24/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
538 PM CST TUE FEB 1 2011

.AVIATION...
THE STRONG SURFACE LOW CENTERED OVER WESTERN KENTUCKY WILL
CONTINUE TO PRODUCE MODERATE NORTH WINDS THROUGH THE FORECAST
PERIOD. ONLY SLIGHT DECREASES IN WIND SPEED ARE EXPECTED... BUT
EVEN THIS AMOUNT SHOULD GREATLY DIMINISH THE BLOWING SNOW.
VISIBILITIES SHOULD IMPROVE OVERNIGHT AT SITES THAT STILL HAVE
BLSN. CLOUD FORECASTS ARE HIGHLY UNCERTAIN... DUE TO THE IRREGULAR
DISTRIBUTION OF LOW-LEVEL MOISTURE... AS SHOWN ON SATELLITE
IMAGERY AND SURFACE OBSERVATIONS. A LITTLE REMAINING -SN OVER
NORTH-CENTRAL OKLAHOMA SHOULD EXIT THAT AREA BY 0300Z THIS EVENING.

&&

.PREV DISCUSSION... /ISSUED 349 PM CST TUE FEB 1 2011/ 

DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS 
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS 
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS 
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER 
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT 
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING 
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING 
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS 
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL 
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND 
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS 
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED 
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS. 
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE 
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE 
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND 
WARNINGS THAT GO THROUGH THURSDAY MORNING. 

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT 
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR 
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER 
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE 
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A 
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND 
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER 
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE 
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE 
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY 
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED 
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW 
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO 
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC 
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND 
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO 
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL 
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK   0  10  -4  18 /  10  10   0  10 
HOBART OK          1  11  -3  23 /   0  10   0   0 
WICHITA FALLS TX   6  18   1  23 /   0  10  10  10 
GAGE OK           -4  15  -7  30 /   0   0   0   0 
PONCA CITY OK     -2  11  -8  13 /  10   0   0  10 
DURANT OK          5  15   2  19 /   0  10  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
     022>048-050>052.

     WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

     WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR 
     OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

25/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
911 PM CST TUE FEB 1 2011

.DISCUSSION...
AN AREA OF CLOUDS AND LIGHT SNOW OVER WESTERN TEXAS MAY MOVE INTO
OUR FORECAST AREA OVERNIGHT... SUPPORTING THE MENTION OF FLURRIES
IN OUR CURRENT FORECAST. WIND CHILLS WILL REMAIN NEARLY STEADY FOR
THE REST OF THE NIGHT... AS TEMPERATURES FALL SLOWLY AND WIND
SPEEDS ALSO DROP OFF EVER SO SLOWLY.

NO CHANGES ARE PLANNED FOR THE OVERNIGHT FORECAST AT THIS TIME.

&&

.PREV DISCUSSION... /ISSUED 538 PM CST TUE FEB 1 2011/ 

AVIATION...
THE STRONG SURFACE LOW CENTERED OVER WESTERN KENTUCKY WILL
CONTINUE TO PRODUCE MODERATE NORTH WINDS THROUGH THE FORECAST
PERIOD. ONLY SLIGHT DECREASES IN WIND SPEED ARE EXPECTED... BUT
EVEN THIS AMOUNT SHOULD GREATLY DIMINISH THE BLOWING SNOW.
VISIBILITIES SHOULD IMPROVE OVERNIGHT AT SITES THAT STILL HAVE
BLSN. CLOUD FORECASTS ARE HIGHLY UNCERTAIN... DUE TO THE IRREGULAR
DISTRIBUTION OF LOW-LEVEL MOISTURE... AS SHOWN ON SATELLITE
IMAGERY AND SURFACE OBSERVATIONS. A LITTLE REMAINING -SN OVER
NORTH-CENTRAL OKLAHOMA SHOULD EXIT THAT AREA BY 0300Z THIS EVENING.

PREV DISCUSSION... /ISSUED 349 PM CST TUE FEB 1 2011/ 

DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS 
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS 
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS 
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER 
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT 
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING 
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING 
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS 
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL 
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND 
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS 
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED 
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS. 
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE 
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE 
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND 
WARNINGS THAT GO THROUGH THURSDAY MORNING. 

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT 
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR 
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER 
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE 
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A 
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND 
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER 
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE 
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE 
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY 
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED 
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW 
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO 
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC 
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND 
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO 
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL 
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK   0  10  -4  18 /  10  10   0  10 
HOBART OK          1  11  -3  23 /   0  10   0   0 
WICHITA FALLS TX   6  18   1  23 /   0  10  10  10 
GAGE OK           -4  15  -7  30 /   0   0   0   0 
PONCA CITY OK     -2  11  -8  13 /  10   0   0  10 
DURANT OK          5  15   2  19 /   0  10  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
     022>048-050>052.

     WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

     WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR 
     OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1144 PM CST TUE FEB 1 2011

.AVIATION...
ONCE AIRPORTS REOPEN... PRESUMABLY DURING THE DAY TOMORROW...
CONDITIONS SHOULD BE MUCH IMPROVED. OTHER THAN PERHAPS A FEW
EARLY MORNING FLURRIES... WEATHER CONDITIONS SHOULD BE VFR OR
PERHAPS MVFR... AND WINDS WILL BE SOMEWHAT LESS STRONG.
VISIBILITY RESTRICTIONS... OUTSIDE FLURRIES... SHOULD BE MINIMAL.
AS HIGH PRESSURE CONTINUES TO SETTLE INTO THE SOUTHERN PLAINS
TOMORROW EVENING... EXPECT WINDS TO DIMINISH FURTHER AND CEILINGS
TO RISE WELL INTO VFR LEVELS.

&&

.PREV DISCUSSION... /ISSUED 911 PM CST TUE FEB 1 2011/ 

DISCUSSION...
AN AREA OF CLOUDS AND LIGHT SNOW OVER WESTERN TEXAS MAY MOVE INTO
OUR FORECAST AREA OVERNIGHT... SUPPORTING THE MENTION OF FLURRIES
IN OUR CURRENT FORECAST. WIND CHILLS WILL REMAIN NEARLY STEADY FOR
THE REST OF THE NIGHT... AS TEMPERATURES FALL SLOWLY AND WIND
SPEEDS ALSO DROP OFF EVER SO SLOWLY.

NO CHANGES ARE PLANNED FOR THE OVERNIGHT FORECAST AT THIS TIME.

PREV DISCUSSION... /ISSUED 538 PM CST TUE FEB 1 2011/ 

AVIATION...
THE STRONG SURFACE LOW CENTERED OVER WESTERN KENTUCKY WILL
CONTINUE TO PRODUCE MODERATE NORTH WINDS THROUGH THE FORECAST
PERIOD. ONLY SLIGHT DECREASES IN WIND SPEED ARE EXPECTED... BUT
EVEN THIS AMOUNT SHOULD GREATLY DIMINISH THE BLOWING SNOW.
VISIBILITIES SHOULD IMPROVE OVERNIGHT AT SITES THAT STILL HAVE
BLSN. CLOUD FORECASTS ARE HIGHLY UNCERTAIN... DUE TO THE IRREGULAR
DISTRIBUTION OF LOW-LEVEL MOISTURE... AS SHOWN ON SATELLITE
IMAGERY AND SURFACE OBSERVATIONS. A LITTLE REMAINING -SN OVER
NORTH-CENTRAL OKLAHOMA SHOULD EXIT THAT AREA BY 0300Z THIS EVENING.

PREV DISCUSSION... /ISSUED 349 PM CST TUE FEB 1 2011/ 

DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS 
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS 
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS 
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER 
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT 
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING 
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING 
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS 
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL 
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND 
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS 
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED 
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS. 
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE 
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE 
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND 
WARNINGS THAT GO THROUGH THURSDAY MORNING. 

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT 
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR 
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER 
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE 
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A 
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND 
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER 
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE 
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE 
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY 
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED 
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW 
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO 
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC 
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND 
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO 
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL 
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK   0  10  -4  18 /  10  10   0  10 
HOBART OK          1  11  -3  23 /   0  10   0   0 
WICHITA FALLS TX   6  18   1  23 /   0  10  10  10 
GAGE OK           -4  15  -7  30 /   0   0   0   0 
PONCA CITY OK     -2  11  -8  13 /  10   0   0  10 
DURANT OK          5  15   2  19 /   0  10  10  10 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
     022>048-050>052.

     WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

     WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR 
     OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

23/23/23

Hazardous Weather Outlooks (HWO)

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
500 AM CST THU JAN 27 2011

OKZ004>048-050>052-TXZ083>090-271800- 
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
500 AM CST THU JAN 27 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
THE AIRMASS REMAINS TOO DRY AND STABLE FOR THUNDERSTORM DEVELOPMENT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST FRIDAY JAN 28.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...0 PERCENT. 

OTHER HAZARDOUS WEATHER...
ALTHOUGH WESTERLY WINDS ARE NOT EXPECTED TO BE VERY STRONG...WARM 
TEMPERATURES AND VERY DRY AIR WILL COMBINE TO ELEVATE THE WILDFIRE 
CONCERNS THIS AFTERNOON. OUTDOOR BURNING IS DISCOURAGED. BURN BANS 
ARE IN EFFECT ACROSS MUCH OF WESTERN NORTH TEXAS AND CENTRAL 
OKLAHOMA.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
WARM AND DRY CONDITIONS AGAIN ON FRIDAY WILL ELEVATE THE WILDFIRE 
POTENTIAL ACROSS MOST OF THE REGION. HOWEVER...WINDS ON FRIDAY ARE 
STILL FORECAST TO BE GENERALLY LIGHT. ANOTHER WARM DAY IS EXPECTED 
SATURDAY ACROSS SOUTHERN OKLAHOMA AND NORTH TEXAS...BUT THERE WILL 
ONCE AGAIN BE LIGHT WIND AND MOISTURE WILL BEGIN TO INCREASE. A COLD 
FRONT WILL TRY TO MOVE ACROSS NORTHERN INTO CENTRAL OKLAHOMA 
SATURDAY...WHICH WILL HELP ALLEVIATE THE WILDFIRE CONCERNS THERE.

MUCH COLDER AIR WILL MOVE INTO THE REGION SUNDAY THROUGH MUCH OF 
NEXT WEEK. THERE IS A CHANCE FOR A LIGHT WINTRY MIX ON MONDAY...WITH 
HIGHER CHANCES FOR ACCUMULATING SNOW AND ICE MONDAY NIGHT THROUGH 
TUESDAY NIGHT. THE INTRUSION OF ARCTIC AIR WILL ALSO PRODUCE VERY 
LOW WIND CHILL VALUES. STAY TUNED FOR LATER FORECASTS AS THIS WINTER 
WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY.

$$

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
1145 AM CST THU JAN 27 2011

OKZ004>048-050>052-TXZ083>090-281200- 
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1145 AM CST THU JAN 27 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THROUGH TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
THE AIRMASS REMAINS TOO DRY AND STABLE FOR THUNDERSTORM DEVELOPMENT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST FRIDAY JAN 28.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...0 PERCENT. 

OTHER HAZARDOUS WEATHER...
ALTHOUGH WESTERLY WINDS ARE NOT EXPECTED TO BE VERY STRONG...WARM 
TEMPERATURES AND VERY DRY AIR WILL COMBINE TO ELEVATE THE WILDFIRE 
CONCERNS THIS AFTERNOON. OUTDOOR BURNING IS DISCOURAGED. BURN BANS 
ARE IN EFFECT ACROSS MUCH OF WESTERN NORTH TEXAS AND CENTRAL 
OKLAHOMA.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
WARM AND DRY CONDITIONS AGAIN ON FRIDAY WILL ELEVATE THE WILDFIRE 
POTENTIAL ACROSS MOST OF THE REGION. HOWEVER...WINDS ON FRIDAY ARE 
STILL FORECAST TO BE GENERALLY LIGHT. ANOTHER WARM... BREEZY DAY IS 
EXPECTED SATURDAY ACROSS MUCH OF OKLAHOMA AND NORTH TEXAS. A COLD 
FRONT WILL TRY TO MOVE ACROSS NORTHERN OKLAHOMA SATURDAY...WHICH 
WILL HELP ALLEVIATE THE WILDFIRE CONCERNS THERE.

MUCH COLDER AIR WILL MOVE INTO THE REGION SUNDAY THROUGH MUCH OF 
NEXT WEEK. THERE IS A CHANCE FOR A LIGHT WINTRY MIX IN NORTHERN 
OKLAHOMA ON MONDAY...WITH HIGHER CHANCES FOR ACCUMULATING SNOW AND 
ICE ACROSS A LARGER PART OF OKLAHOMA AND NORTH TEXAS MONDAY NIGHT 
THROUGH TUESDAY NIGHT. THE INTRUSION OF ARCTIC AIR WILL ALSO PRODUCE 
VERY LOW WIND CHILL VALUES. STAY TUNED FOR LATER FORECASTS AS THIS 
WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM 
FRIDAY.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
403 AM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-281800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
403 AM CST FRI JAN 28 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A DRY AND AND STABLE AIRMASS WILL REMAIN IN PLACE THROUGH
TONIGHT. 

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SATURDAY JAN 29.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...0 PERCENT. 

OTHER HAZARDOUS WEATHER...
VERY WARM AND DRY CONDITIONS WILL ELEVATE THE WILDFIRE POTENTIAL 
ACROSS MOST OF THE REGION TODAY.  

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
ANOTHER WARM DAY IS EXPECTED SATURDAY WHICH WILL ELEVATE THE
WILDFIRE POTENTIAL.  A COLD FRONT WILL TRY TO MOVE ACROSS NORTHERN 
OKLAHOMA SATURDAY...WHICH WILL HELP ALLEVIATE THE WILDFIRE CONCERNS 
THERE.

COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY AS A STORM
SYSTEM MOVES ACROSS TEXAS AND FAR SOUTHERN OKLAHOMA.  MOST OF THE
PRECIPITATION WITH THIS SYSTEM WILL FALL AS RAIN.  ANOTHER SYSTEM
WILL BEGIN TO IMPACT THE AREA MONDAY INTO TUESDAY.  AS COLDER AIR
DEEPENS...THE CHANCES FOR FROZEN AND FREEZING PRECIPITATION WILL 
INCREASE...ESPECIALLY MONDAY NIGHT INTO TUESDAY.  

AT THIS TIME...WESTERN AND NORTHERN OKLAHOMA WILL HAVE THE
BEST OPPORTUNITY FOR SIGNIFICANT AMOUNTS OF SNOWFALL.  AREAS
TO THE SOUTH AND SOUTHEAST MAY EXPERIENCE MORE FREEZING RAIN
AND SLEET...WITH SOME SNOW AS THE SYSTEM DEPARTS LATE TUESDAY
INTO WEDNESDAY.  SIGNIFICANT SLEET AND ICE ACCUMULATIONS ARE ALSO
POSSIBLE.  WITH WARM WEATHER THE NEXT FEW DAYS...NOW IS
THE TIME TO PREPARE FOR WINTER WEATHER AND ITS IMPACTS.  STRONG 
NORTHERLY WINDS ARE ALSO POSSIBLE WITH THIS SYSTEM WHICH WILL
PRODUCE VERY LOW WIND CHILL VALUES TUESDAY INTO WEDNESDAY.  STAY 
TUNED FOR LATER FORECASTS AS THIS WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1257 PM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-291200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1257 PM CST FRI JAN 28 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A DRY AND AND STABLE AIRMASS WILL REMAIN IN PLACE THROUGH
TONIGHT. 

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SATURDAY JAN 29.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...0 PERCENT. 

OTHER HAZARDOUS WEATHER...
VERY WARM AND DRY CONDITIONS WILL ELEVATE THE WILDFIRE POTENTIAL 
ACROSS MOST OF THE REGION TODAY.  

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
ANOTHER WARM DAY IS EXPECTED SATURDAY WHICH WILL ELEVATE THE
WILDFIRE POTENTIAL.  A COLD FRONT WILL TRY TO MOVE ACROSS NORTHERN 
OKLAHOMA SATURDAY...WHICH WILL HELP ALLEVIATE THE WILDFIRE CONCERNS 
THERE.

COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY AS A STORM
SYSTEM MOVES ACROSS TEXAS AND FAR SOUTHERN OKLAHOMA.  MOST OF THE
PRECIPITATION WITH THIS SYSTEM WILL FALL AS RAIN.  ANOTHER SYSTEM
WILL BEGIN TO IMPACT THE AREA MONDAY INTO TUESDAY.  AS COLDER AIR
DEEPENS...THE CHANCES FOR FROZEN AND FREEZING PRECIPITATION WILL 
INCREASE...ESPECIALLY MONDAY NIGHT INTO TUESDAY.  

AT THIS TIME...WESTERN AND NORTHERN OKLAHOMA WILL HAVE THE
BEST OPPORTUNITY FOR SIGNIFICANT AMOUNTS OF SNOWFALL.  AREAS
TO THE SOUTH AND SOUTHEAST MAY EXPERIENCE MORE FREEZING RAIN
AND SLEET...WITH SOME SNOW AS THE SYSTEM DEPARTS LATE TUESDAY
INTO WEDNESDAY.  SIGNIFICANT SLEET AND ICE ACCUMULATIONS ARE ALSO 
POSSIBLE.  WITH WARM WEATHER THE NEXT FEW DAYS...NOW IS THE TIME TO 
PREPARE FOR WINTER WEATHER AND ITS IMPACTS.  STRONG NORTHERLY WINDS 
ARE ALSO POSSIBLE WITH THIS SYSTEM WHICH WILL PRODUCE VERY LOW WIND 
CHILL VALUES TUESDAY INTO WEDNESDAY.  STAY TUNED FOR LATER FORECASTS 
AS THIS WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
SATURDAY JANUARY 29.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
445 AM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-291800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
445 AM CST SAT JAN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS SOUTHEAST
OKLAHOMA TONIGHT. 

DISCUSSION...
MOISTURE WILL SLOWLY INCREASE TODAY INTO TONIGHT IN ADVANCE
OF A STORM SYSTEM TO THE WEST.  AS THE SYSTEM MOVES ACROSS
FAR SOUTHERN OKLAHOMA LATE TONIGHT AND EARLY SUNDAY...INSTABILITY
MAY BECOME SUFFICIENT FOR ISOLATED THUNDERSTORMS.   

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY JAN 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...LESS THAN 20 PERCENT. 

OTHER HAZARDOUS WEATHER...
VERY WARM AFTERNOON TEMPERATURES WILL COMBINE WITH VERY LOW
HUMIDITY VALUES TO INCREASE THE WILDFIRE POTENTIAL TODAY.  
SEVERAL WILDFIRES OCCURRED FRIDAY UNDER SIMILAR WEATHER 
CONDITIONS AND SOUTH WINDS WILL BE A LITTLE STRONGER TODAY.
EXERCISE CAUTION TO PREVENT THE START AND SPREAD OF WILDFIRES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED

OTHER HAZARDOUS WEATHER...
COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY AS A STORM 
SYSTEM MOVES ACROSS TEXAS AND FAR SOUTHERN OKLAHOMA.  PRECIPITATION 
WITH THIS SYSTEM WILL FALL AS RAIN.  ANOTHER SYSTEM WILL BEGIN TO 
IMPACT THE AREA MONDAY INTO TUESDAY.  AS COLDER AIR DEEPENS...THE 
CHANCES FOR FROZEN AND FREEZING PRECIPITATION WILL 
INCREASE...ESPECIALLY MONDAY NIGHT INTO TUESDAY. 

AT THIS TIME...WESTERN AND NORTHERN OKLAHOMA WILL HAVE THE BEST 
OPPORTUNITY FOR SIGNIFICANT AMOUNTS OF SNOWFALL.  AREAS TO THE SOUTH 
AND SOUTHEAST MAY EXPERIENCE MORE FREEZING RAIN AND SLEET...WITH 
SOME SNOW AS THE SYSTEM DEPARTS LATE TUESDAY INTO WEDNESDAY.  
SIGNIFICANT SLEET AND ICE ACCUMULATIONS ARE ALSO POSSIBLE.  WITH 
WARM WEATHER THE NEXT FEW DAYS...NOW IS THE TIME TO PREPARE FOR 
WINTER WEATHER AND ITS IMPACTS.  STRONG NORTHERLY WINDS ARE ALSO 
LIKELY WITH THIS SYSTEM.  THIS WILL PRODUCE VERY LOW WIND CHILL 
VALUES TUESDAY INTO WEDNESDAY ALONG WITH THE POTENTIAL FOR BLOWING
AND DRIFTING OF SNOW.  STAY TUNED FOR LATER FORECASTS AS THIS WINTER 
WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1158 AM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-301200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1158 AM CST SAT JAN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS SOUTHEAST
OKLAHOMA TONIGHT. 

DISCUSSION...
MOISTURE WILL SLOWLY INCREASE TODAY INTO TONIGHT IN ADVANCE OF A 
STORM SYSTEM APPROACHING FROM THE WEST.  AS THE SYSTEM MOVES 
ACROSS FAR SOUTHERN OKLAHOMA LATE TONIGHT AND EARLY SUNDAY... 
INSTABILITY MAY BECOME SUFFICIENT FOR ISOLATED THUNDERSTORMS.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY JAN 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...20 PERCENT.

OTHER HAZARDOUS WEATHER...
VERY WARM AFTERNOON TEMPERATURES WILL COMBINE WITH VERY LOW HUMIDITY 
VALUES TO INCREASE THE WILDFIRE POTENTIAL THIS AFTERNOON. SEVERAL 
WILDFIRES OCCURRED FRIDAY UNDER SIMILAR WEATHER CONDITIONS AND SOUTH 
WINDS WILL BE A LITTLE STRONGER TODAY. EXERCISE CAUTION TO PREVENT 
THE START AND SPREAD OF WILDFIRES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY WITH EVEN 
COLDER AIR MOVING INTO THE AREA ON MONDAY AND TUESDAY. WINTER 
PRECIPITATION... INCLUDING THE CHANCE OF SNOW.. FREEZING RAIN AND 
SLEET... IS EXPECTED ON MONDAY AND TUESDAY AS ANOTHER STORM SYSTEM 
APPROACHES. THE COLD WEATHER WILL LINGER INTO THE MIDDLE OF THE WEEK 
WITH MORNING WIND CHILL VALUES IN THE SINGLE DIGITS OR BELOW ZERO ON 
WEDNESDAY AND THURSDAY MORNINGS. REFER TO THE LATEST SPECIAL WEATHER 
STATEMENT FOR ADDITIONAL DETAILS AND STAY TUNED FOR LATER FORECASTS 
AS THIS WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
SUNDAY JANUARY 30.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
955 PM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-301200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
955 PM CST SAT JAN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS SOUTHEAST
OKLAHOMA TONIGHT. 

DISCUSSION...
MOISTURE WILL SLOWLY INCREASE TONIGHT IN ADVANCE OF A STORM SYSTEM 
APPROACHING FROM THE WEST.  AS THE SYSTEM MOVES ACROSS FAR SOUTHERN 
OKLAHOMA LATE TONIGHT AND EARLY SUNDAY... INSTABILITY MAY BECOME 
SUFFICIENT FOR ISOLATED THUNDERSTORMS.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY JAN 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...20 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
COLDER AIR WILL FLOW IN THE SOUTHERN PLAINS ON SUNDAY... WITH EVEN 
COLDER AIR MOVING INTO THE AREA ON MONDAY AND TUESDAY. ANOTHER STORM 
SYSTEM WILL ARRIVE MONDAY NIGHT AND TUESDAY... BRINGING A MIX OF 
SNOW... FREEZING RAIN... AND SLEET. THE COLD WEATHER WILL LINGER 
INTO THE MIDDLE OF THE WEEK WITH MORNING WIND CHILL VALUES IN THE 
SINGLE DIGITS OR BELOW ZERO ON WEDNESDAY AND THURSDAY MORNINGS. 
REFER TO THE LATEST SPECIAL WEATHER STATEMENT FOR ADDITIONAL DETAILS 
AND STAY TUNED FOR LATER FORECASTS AS THIS WINTER WEATHER SITUATION 
EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
SUNDAY JANUARY 30.

$$

CMS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
422 AM CST SUN JAN 30 2011

OKZ004>048-050>052-TXZ083>090-301800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
422 AM CST SUN JAN 30 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
AN UPPER LEVEL STORM WILL TRACK ACROSS TEXAS TODAY...WHILE
COLD AIR FILTERS INTO OKLAHOMA BEHIND A COLD FRONT.  THERE
IS A SLIGHT CHANCE FOR LIGHT RAIN ACROSS FAR SOUTHEAST
OKLAHOMA.  

PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY JAN 31.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT. 

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED MONDAY THROUGH SATURDAY.

OTHER HAZARDOUS WEATHER...
SNOW...SLEET...AND SOME FREEZING RAIN WILL DEVELOP
MONDAY EVENING INTO TUESDAY AS A STRONG STORM MOVES ACROSS
THE AREA.  VERY COLD WIND CHILL VALUES CAN ALSO BE EXPECTED
WITH THIS STORM SYSTEM.  PLEASE REFER TO THE WINTER STORM
WATCH FOR EXPECTED IMPACTS.  

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CST SUN JAN 30 2011

OKZ004>048-050>052-TXZ083>090-311200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 PM CST SUN JAN 30 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
AN UPPER LEVEL STORM WILL TRACK ACROSS TEXAS TODAY...WHILE
COLD AIR FILTERS INTO OKLAHOMA BEHIND A COLD FRONT.  THERE IS A 
SLIGHT CHANCE FOR LIGHT RAIN ACROSS FAR SOUTHEAST OKLAHOMA AND 
PERHAPS DRIZZLE ELSEWHERE.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY JAN 31.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT. 

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS WITH SNOW OR SLEET WILL BE POSSIBLE MONDAY 
NIGHT AND TUESDAY.

OTHER HAZARDOUS WEATHER...
SNOW...SLEET...AND SOME FREEZING RAIN WILL DEVELOP MONDAY EVENING 
INTO TUESDAY AS A STRONG STORM SYSTEM MOVES ACROSS THE AREA. THIS 
WINTER WEATHER WILL LIKELY CREATE TRAVEL PROBLEMS OVER PORTIONS OF 
THE AREA. VERY COLD WIND CHILL VALUES CAN ALSO BE EXPECTED WITH THIS 
STORM SYSTEM THROUGH THE MIDDLE OF THE WEEK. PLEASE REFER TO THE 
WINTER STORM WATCH FOR EXPECTED IMPACTS.  

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
MONDAY JANUARY 31.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 AM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-311200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...OVERNIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
FREEZING DRIZZLE IS POSSIBLE OVER OKLAHOMA... MAINLY FROM NORTH OF 
OKLAHOMA CITY TO PONCA CITY.  LITTLE OR NO ACCUMULATION OF ICE IS 
EXPECTED OVERNIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY JAN 31.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT. 

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS WITH SNOW OR SLEET WILL BE POSSIBLE MONDAY 
NIGHT AND TUESDAY.

OTHER HAZARDOUS WEATHER...
SNOW...SLEET...AND SOME FREEZING RAIN WILL DEVELOP MONDAY EVENING 
INTO TUESDAY AS A STRONG STORM SYSTEM MOVES ACROSS THE AREA. THIS 
WINTER WEATHER WILL LIKELY CREATE TRAVEL PROBLEMS OVER PORTIONS OF 
THE AREA. VERY COLD WIND CHILL VALUES CAN ALSO BE EXPECTED WITH THIS 
STORM SYSTEM THROUGH THE MIDDLE OF THE WEEK. PLEASE REFER TO THE 
WINTER STORM WATCH FOR EXPECTED IMPACTS.  

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
MONDAY JANUARY 31.

$$

CMS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
435 AM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-311800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
435 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTHERN OKLAHOMA
LATE TONIGHT. 

DISCUSSION...
A STRONG STORM SYSTEM WILL APPROACH THE SOUTHERN PLAINS FROM THE 
WEST THROUGH TONIGHT.  PRECIPITATION IS EXPECTED TO START
IN THE FORM OF RAIN ACROSS SOUTHERN OKLAHOMA AND NORTH TEXAS
THIS EVENING. A RUMBLE OR TWO OF THUNDER IS POSSIBLE WITH SOME OF 
THE PRECIPITATION...ESPECIALLY ACROSS SOUTHEAST OKLAHOMA.  

PROBABILITY TABLE...
VALID THROUGH 700 AM CST TUESDAY FEB 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT. 

OTHER HAZARDOUS WEATHER...
SNOW...SLEET AND FREEZING RAIN WILL BEGIN TO FALL THIS EVENING AND 
OVERNIGHT.  PLEASE SEE THE LATEST WINTER STORM WARNINGS AND ADVISORIES
FOR DETAILS.  

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
A RUMBLE OR TWO OF THUNDER IS POSSIBLE WITH SOME OF THE
PRECIPITATION TUESDAY MORNING.  OTHERWISE THUNDERSTORMS
ARE NOT EXPECTED THROUGH SUNDAY.

OTHER HAZARDOUS WEATHER...
A WINTER STORM WILL CONTINUE TO IMPACT THE AREA ON TUESDAY WITH
THE COMBINATION OF VERY COLD TEMPERATURES...STRONG WINDS...AND
SNOW.  PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND 
ADVISORIES FOR DETAILS.  

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
840 AM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-311800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
840 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTHERN OKLAHOMA AND 
NORTHERN TEXAS LATE TONIGHT. SEVERE STORMS ARE NOT EXPECTED.

DISCUSSION...
A STRONG STORM SYSTEM WILL APPROACH THE SOUTHERN PLAINS FROM THE 
WEST THROUGH TONIGHT. PRECIPITATION IS EXPECTED TO START IN THE FORM 
OF RAIN ACROSS SOUTHERN OKLAHOMA AND NORTHERN TEXAS THIS EVENING AND 
CHANGE TO FREEZING RAIN AND SLEET... AND THEN SNOW... BY MORNING.  
ELEVATED THUNDERSTORMS MAY DEVELOP TONIGHT WITH SOME OF THE 
PRECIPITATION... ESPECIALLY ACROSS SOUTHEAST OKLAHOMA.  

PROBABILITY TABLE...
VALID THROUGH 700 AM CST TUESDAY FEB 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...30 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...10 PERCENT 

OTHER HAZARDOUS WEATHER...
SNOW...SLEET AND FREEZING RAIN WILL BEGIN TO FALL THIS EVENING AND 
OVERNIGHT. HEAVY SNOW AND NEAR-BLIZZARD CONDITIONS MAY EXIST IN SOME 
AREAS BY DAYBREAK TUESDAY MORNING. PLEASE SEE THE LATEST WINTER 
STORM WARNINGS AND ADVISORIES FOR DETAILS.  

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
THUNDER WILL BE POSSIBLE WITH THE SNOW AND SLEET TUESDAY MORNING.  
OTHERWISE THUNDERSTORMS ARE NOT EXPECTED THROUGH SUNDAY.

OTHER HAZARDOUS WEATHER...
A MAJOR WINTER STORM WILL CONTINUE TO IMPACT THE AREA ON TUESDAY WITH
THE COMBINATION OF VERY COLD TEMPERATURES... STRONG WINDS... AND 
SNOW. BITTER COLD WILL PERSIST WELL INTO THE LATTER PART OF THE 
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND 
ADVISORIES FOR DETAILS.  

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-011000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 PM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTHERN OKLAHOMA AND 
NORTHERN TEXAS LATE TONIGHT. SEVERE STORMS ARE NOT EXPECTED.

DISCUSSION...
A STRONG STORM SYSTEM WILL APPROACH THE SOUTHERN PLAINS FROM THE 
WEST THROUGH TONIGHT. PRECIPITATION IS EXPECTED TO START IN THE FORM 
OF RAIN ACROSS SOUTHERN OKLAHOMA AND NORTHERN TEXAS THIS EVENING AND 
CHANGE TO FREEZING RAIN AND SLEET... AND THEN SNOW... BY MORNING.  
ELEVATED THUNDERSTORMS MAY DEVELOP TONIGHT WITH SOME OF THE 
PRECIPITATION... ESPECIALLY ACROSS SOUTHEAST OKLAHOMA.  

PROBABILITY TABLE...
VALID THROUGH 700 AM CST TUESDAY FEB 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...30 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...10 PERCENT 

OTHER HAZARDOUS WEATHER...
SNOW...SLEET AND FREEZING RAIN WILL BEGIN TO FALL THIS EVENING AND 
OVERNIGHT. HEAVY SNOW AND BLIZZARD CONDITIONS MAY EXIST IN SOME 
AREAS BY DAYBREAK TUESDAY MORNING. PLEASE SEE THE LATEST WINTER 
STORM WARNINGS AND ADVISORIES FOR DETAILS.  

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
THUNDER WILL BE POSSIBLE WITH THE SNOW AND SLEET TUESDAY MORNING.  
OTHERWISE THUNDERSTORMS ARE NOT EXPECTED THROUGH SUNDAY.

OTHER HAZARDOUS WEATHER...
A MAJOR WINTER STORM WILL CONTINUE TO IMPACT THE AREA ON TUESDAY WITH
THE COMBINATION OF VERY COLD TEMPERATURES... STRONG WINDS... AND 
SNOW. BITTER COLD WILL PERSIST WELL INTO THE LATTER PART OF THE 
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND 
ADVISORIES FOR DETAILS.  

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
TUESDAY.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
455 AM CST TUE FEB 1 2011 

OKZ004>048-050>052-TXZ083>090-011800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
455 AM CST TUE FEB 1 2011 

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTH CENTRAL AND 
SOUTHEAST OKLAHOMA EARLY THIS MORNING. SEVERE STORMS ARE NOT 
EXPECTED.

DISCUSSION...
A STRONG WINTER STORM WILL CONTINUE TO MOVE THROUGH THE SOUTHERN 
PLAINS THIS MORNING GENERATING SNOW... OCCASIONALLY MIXED WITH 
SLEET... EARLY THIS MORNING IN SOUTHEAST OKLAHOMA. ISOLATED ELEVATED 
THUNDERSTORMS WILL BE POSSIBLE FOR A FEW HOURS THIS MORNING. THE 
STORMS WILL PRODUCE LOCALLY HEAVY AMOUNTS OF SNOW AND SLEET.    

PROBABILITY TABLE...
VALID THROUGH 700 AM CST WED FEB 2.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...30 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...5 PERCENT 

OTHER HAZARDOUS WEATHER...
SNOW... OCCASIONALLY MIXED WITH SLEET WILL CONTINUE THROUGH THE 
MORNING... BEFORE DIMINISHING THIS AFTERNOON. STRONG WINDS AND COLD 
TEMPERATURES WILL RESULT IN SUBZERO WIND CHILLS. HEAVY SNOW AND 
BLIZZARD CONDITIONS MAY EXIST IN SOME AREAS. PLEASE SEE THE LATEST 
WINTER WEATHER WARNINGS AND ADVISORIES FOR DETAILS.  

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... 

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED THROUGH MONDAY.

OTHER HAZARDOUS WEATHER...
BITTER COLD TEMPERATURES WILL PERSIST INTO THE LATTER PART OF THE 
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND 
ADVISORIES FOR DETAILS.  

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY. 

$$
CJS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CST TUE FEB 1 2011 

OKZ004>048-050>052-TXZ083>090-021100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 PM CST TUE FEB 1 2011 

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED. 

DISCUSSION...
A STRONG WINTER STORM WILL CONTINUE TO MOVE ACROSS THE SOUTHERN 
PLAINS THIS AFTERNOON. THE CHANCE OF THUNDERSTORMS IN THE AREA HAS 
DIMINISHED... AS THE HEAVIER SNOW SHIFTS EAST OF THE AREA.       

PROBABILITY TABLE...
VALID THROUGH 700 AM CST WED FEB 2.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
SNOW WILL TAPER OFF THIS AFTERNOON... BUT STRONG WINDS WILL CONTINUE 
TO CREATE BLIZZARD OR NEAR-BLIZZARD CONDITIONS IN MANY AREAS FOR THE 
REST OF THE DAY. DANGEROUS COLD WILL CONTINUE... WITH WIND CHILLS 
REMAINING WELL BELOW ZERO IN MOST AREAS THROUGH TONIGHT. PLEASE 
REFER TO THE LATEST WINTER WEATHER WARNINGS AND ADVISORIES FOR 
DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... 

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO THE LATTER PART OF THE 
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND 
ADVISORIES FOR DETAILS.

AFTER A BRIEF WARMER PERIOD EARLY THIS WEEKEND...ANOTHER ARCTIC 
FRONT WILL ARRIVE LATE SUNDAY...BRINGING ANOTHER ROUND OF VERY LOW 
WIND CHILL TEMPERATURES...AND A CHANCE OF WINTRY PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
WEDNESDAY. 

$$

24

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
547 PM CST TUE FEB 1 2011 

OKZ004>048-050>052-TXZ083>090-021100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
547 PM CST TUE FEB 1 2011 

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED. 

DISCUSSION...
A STRONG WINTER STORM WILL CONTINUE TO EXIT THE SOUTHERN PLAINS 
TONIGHT. THE CHANCE OF THUNDERSTORMS HAS ENDED.       

PROBABILITY TABLE...
VALID THROUGH 700 AM CST WED FEB 2.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
BLOWING SNOW WILL CONTINUE TO REDUCE VISIBILITIES IN SOME LOCATIONS 
ACROSS OKLAHOMA AND WESTERN NORTH TEXAS TONIGHT. DANGEROUS COLD WILL 
ALSO CONTINUE... WITH WIND CHILLS REMAINING WELL BELOW ZERO TONIGHT. 
PLEASE REFER TO THE LATEST WIND CHILL WARNINGS AND ADVISORIES FOR 
DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... 

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO AT LEAST THURSDAY. PLEASE 
REFER TO THE LATEST WIND CHILL WARNINGS AND ADVISORIES FOR DETAILS.

AFTER A BRIEF WARMER PERIOD EARLY THIS WEEKEND...ANOTHER ARCTIC 
FRONT WILL ARRIVE LATE SUNDAY...BRINGING ANOTHER ROUND OF VERY LOW 
WIND CHILL TEMPERATURES...AND A CHANCE OF WINTRY PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
WEDNESDAY. 

$$

24/25

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
455 AM CST WED FEB 2 2011 

OKZ004>048-050>052-TXZ083>090-021800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
455 AM CST WED FEB 2 2011 

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED. 

DISCUSSION...
A COLD... STABLE AIRMASS WILL CONTINUE OVER THE AREA.      

PROBABILITY TABLE...
VALID THROUGH 700 AM CST THU FEB 3. 
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...ZERO PERCENT.

OTHER HAZARDOUS WEATHER...
GUSTY NORTH WINDS THIS MORNING MAY CAUSE DRIFTING SNOW ACROSS 
PORTIONS OF CENTRAL AND NORTH CENTRAL OKLAHOMA... ESPECIALLY ALONG 
ROADWAYS NEAR OPEN FIELDS. VERY COLD TEMPERATURES AND THE BRISK 
WINDS WILL CONTINUE TO RESULT IN BELOW ZERO WIND CHILLS. PLEASE 
REFER TO THE LATEST WIND CHILL WARNINGS AND ADVISORIES FOR DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... 

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO THURSDAY.  

AFTER A BRIEF PERIOD OF WARMER TEMPERATURES EARLY THIS WEEKEND... AN 
ARCTIC FRONT WILL ARRIVE LATE SUNDAY... BRINGING ANOTHER ROUND OF 
VERY LOW WIND CHILL TEMPERATURES... AND A CHANCE OF WINTRY 
PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON 
TODAY. 

$$

CJS

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
1135 AM CST WED FEB 2 2011 

OKZ004>048-050>052-TXZ083>090-031100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1135 AM CST WED FEB 2 2011 

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED. 

DISCUSSION...
A COLD... STABLE AIRMASS WILL CONTINUE OVER THE AREA.      

PROBABILITY TABLE...
VALID THROUGH 700 AM CST THU FEB 3. 
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...ZERO PERCENT.

OTHER HAZARDOUS WEATHER...
GUSTY NORTH WINDS TODAY MAY CAUSE DRIFTING SNOW ACROSS 
PORTIONS OF CENTRAL AND NORTH CENTRAL OKLAHOMA... ESPECIALLY ALONG 
ROADWAYS NEAR OPEN FIELDS. VERY COLD TEMPERATURES AND THE BRISK 
WINDS WILL CONTINUE TO RESULT IN BELOW ZERO WIND CHILLS. PLEASE 
REFER TO THE LATEST WIND CHILL ADVISORY FOR DETAILS.

WITH SUNSHINE TODAY SOME OF THE SNOW MAY MELT... HOWEVER... WITH 
TEMPERATURES WELL BELOW FREEZING TONIGHT THIS LAYER OF WATER MAY 
REFREEZE FORMING ICE. SO ROADWAYS MAY REMAIN TREACHEROUS INTO 
THURSDAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... 

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO THURSDAY.  

AFTER A BRIEF PERIOD OF WARMER TEMPERATURES EARLY THIS WEEKEND... AN 
ARCTIC FRONT WILL ARRIVE LATE SUNDAY... BRINGING ANOTHER ROUND OF 
VERY LOW WIND CHILL TEMPERATURES... AND A CHANCE OF WINTRY 
PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM 
THURSDAY. 

$$

CJS/MAXWELL

Winter Weather Messages (WSW)

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
346 AM CST SUN JAN 30 2011

OKZ006>008-011>013-015>020-022>032-035-038>042-046-302130-
/O.NEW.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-GRANT-KAY-MAJOR-GARFIELD-NOBLE-DEWEY-CUSTER-BLAINE-
KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-
GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-KIOWA-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...PONCA CITY...
FAIRVIEW...ENID...PERRY...TALOGA...WEATHERFORD...CLINTON...
WATONGA...KINGFISHER...GUTHRIE...STILLWATER...CORDELL...
ANADARKO...YUKON...EL RENO...MUSTANG...OKLAHOMA CITY...CHANDLER...
CHICKASHA...PURCELL...NORMAN...MOORE...SHAWNEE...SEMINOLE...
HOLDENVILLE...HOBART...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...ARDMORE
346 AM CST SUN JAN 30 2011

...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON. 

 * A STRONG STORM SYSTEM WILL MOVE FROM NORTHERN CALIFORNIA INTO
   THE FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN
   MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY. 

*  TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO
   DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
   OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE PRECIPITATION
   IS EXPECTED TO BE VERY LIGHT.

*  MAIN IMPACT: FOUR INCHES OR MORE OF SLEET AND SNOW ARE POSSIBLE
   IN THE WATCH AREA. PARTS OF CENTRAL AND NORTH CENTRAL OKLAHOMA
   MAY EXPERIENCE THE HEAVIER AMOUNTS OF SNOW. 

*  OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
   WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
   WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WILL
   CREATE POOR VISIBILITY.

*  ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
   HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES
   FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS
   FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 * THE EXACT TRACK AND IMPACTS FROM THIS WINTER STORM ARE STILL
   UNCERTAIN. COUNTIES NOT INCLUDING IN THIS WATCH MAY BE ADDED
   LATER OR MAY BE PLACED IN ADVISORIES OR WARNINGS AT A LATER
   TIME.

 * CONSIDER CHANGING TRAVEL PLANS. MAKE SURE YOU HAVE AN ADEQUATE
   SUPPLY OF FOOD...AND NECESSARY MEDICATIONS. 


 * WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
   WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
   RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
   WEATHER EVENT.


&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
308 PM CST SUN JAN 30 2011

OKZ007-008-012-013-018>020-023>031-040-310515-
/O.UPG.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
308 PM CST SUN JAN 30 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM MONDAY TO 6 PM CST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW AND BLOWING AND DRIFTING SNOW... WHICH IS
IN EFFECT FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR MUCH OF CENTRAL
AND NORTH CENTRAL OKLAHOMA. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

THIS IS A PARTICULARLY DANGEROUS WINTER STORM SITUATION... WITH THE
POTENTIAL FOR BLIZZARD OR NEAR-BLIZZARD CONDITIONS ALONG WITH
LIFE-THREATENING WIND CHILLS. TRAVEL IS LIKELY TO BECOME EXTREMELY
DIFFICULT IF NOT IMPOSSIBLE BY TUESDAY MORNING. ALL RESIDENTS IN
CENTRAL AND NORTHERN OKLAHOMA ARE URGED TO TAKE THIS DEVELOPING
WINTER STORM SERIOUSLY AND PLAN FOR THE POSSIBILITY OF
SIGNIFICANT DISRUPTIONS BY LATE MONDAY NIGHT AND TUESDAY MORNING.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
  FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN MOVE
  ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: RAIN WILL CHANGE QUICKLY TO A MIX OF FREEZING RAIN SLEET
  AND SNOW MONDAY EVENING. SNOW MAY BECOME HEAVY AT TIME LATE
  MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH SUBSTANTIAL
  BLOWING AND DRIFTING... BEFORE TAPERING OFF TUESDAY AFTERNOON.

* MAIN IMPACT: A CRIPPLING COMBINATION OF SNOW AND BLOWING SNOW
  FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING TRAVEL
  VERY DIFFICULT OR IMPOSSIBLE. 

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
  WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG
  WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON
  EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL
  POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR-WHITEOUT
  CONDITIONS IN SOME AREAS.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND HAZARDOUS
  AS EARLY AS TUESDAY EVENING... MAKING TRAVEL TREACHEROUS. VERY
  COLD CONDITIONS FOLLOWING THE STORM MAY KEEP SOME ROADS FROZEN
  AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER CONDITIONS
  BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND OTHER
  PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY NECESSARY
  MEDICATION. 

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO
  PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE
  RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY.

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS
  DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN BE
  FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY TUNED TO
  NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION FOR THE
  LATEST INFORMATION CONCERNING THIS WEATHER EVENT.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ004-005-009-010-310515-
/O.NEW.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
308 PM CST SUN JAN 30 2011

...WIND CHILL WATCH IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
WATCH...WHICH IS IN EFFECT MONDAY NIGHT THROUGH WEDNESDAY
MORNING FOR NORTHWESTERN OKLAHOMA.

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK
  TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO WEDNESDAY MORNING.

* IMPACTS: IN ADDITION TO LIFE-THREATENING COLD... SNOW AND
  BLOWING SNOW ARE LIKELY MONDAY NIGHT INTO EARLY TUESDAY.
  ACCUMULATIONS UP TO 4 INCHES ARE POSSIBLE... WITH DEEPER DRIFTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

&&

$$

OKZ014-021-033-034-036-037-044-045-050-TXZ083>090-310515-
/O.EXA.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ROGER MILLS-BECKHAM-HARMON-GREER-JACKSON-TILLMAN-COTTON-JEFFERSON-
LOVE-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEYENNE...ELK CITY...SAYRE...HOLLIS...
MANGUM...ALTUS...FREDERICK...WALTERS...WAURIKA...MARIETTA...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
308 PM CST SUN JAN 30 2011

...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS EXPANDED THE WINTER
STORM WATCH... WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON. THE WINTER STORM WATCH NOW INCLUDES MUCH OF
WEST CENTRAL AND SOUTHWESTERN OKLAHOMA AND ALL OF WESTERN NORTH
TEXAS. 

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
  FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN MOVE
  ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO
  DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
  OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE PRECIPITATION
  IS EXPECTED TO BE VERY LIGHT.

* MAIN IMPACT: 3 TO 6 INCHES OR MORE OF SLEET AND SNOW ARE
  POSSIBLE IN THE WATCH AREA... ALONG WITH LIGHT ACCUMULATIONS OF
  GLAZE BEFORE THE PRECIPITATION CHANGES TO SNOW.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND 
  WILL CREATE POOR VISIBILITY. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES 
  FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS 
  FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
  DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY IMPOSSIBLE
  IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH MONDAY.. IT
  WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS...
  INCLUDING ANY NECESSARY MEDICAL SUPPLIES. 

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE
  DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE
  WEATHER. 

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE 
  WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL 
  RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS 
  WEATHER EVENT. 

&&

$$

OKZ006-011-015>017-022-032-035-038-039-041-042-046-310515-
/O.CON.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-DEWEY-CUSTER-BLAINE-WASHITA-HUGHES-KIOWA-COMANCHE-
STEPHENS-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...TALOGA...
WEATHERFORD...CLINTON...WATONGA...CORDELL...HOLDENVILLE...
HOBART...LAWTON...DUNCAN...SULPHUR...ADA...ARDMORE
308 PM CST SUN JAN 30 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON FOR MUCH OF WESTERN AND SOUTHERN OKLAHOMA.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
  FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN MOVE
  ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO 
  DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE 
  OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE 
  PRECIPITATION IS EXPECTED TO BE VERY LIGHT. 

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE POSSIBLE IN THE
  WATCH AREA. 

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND 
  WILL CREATE POOR VISIBILITY. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES 
  FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS 
  FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
  DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY IMPOSSIBLE
  IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH MONDAY.. IT
  WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS...
  INCLUDING ANY NECESSARY MEDICAL SUPPLIES. 

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE
  DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE
  WEATHER. 

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE 
  WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL 
  RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS 
  WEATHER EVENT. 

&&

$$

24/MLB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
415 PM CST SUN JAN 30 2011

OKZ007-008-012-013-018>020-023>031-040-310615-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
415 PM CST SUN JAN 30 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO
6 PM CST TUESDAY...

THIS IS A PARTICULARLY DANGEROUS WINTER STORM SITUATION... WITH
THE POTENTIAL FOR BLIZZARD OR NEAR-BLIZZARD CONDITIONS ALONG WITH
LIFE-THREATENING WIND CHILLS. TRAVEL IS LIKELY TO BECOME EXTREMELY
DIFFICULT IF NOT IMPOSSIBLE BY TUESDAY MORNING. ALL RESIDENTS IN
CENTRAL AND NORTHERN OKLAHOMA ARE URGED TO TAKE THIS DEVELOPING
WINTER STORM SERIOUSLY AND PLAN FOR THE POSSIBILITY OF SIGNIFICANT
DISRUPTIONS BY LATE MONDAY NIGHT AND TUESDAY MORNING.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE 
  FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN 
  MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY. 

* TIMING: RAIN WILL CHANGE QUICKLY TO A MIX OF FREEZING RAIN 
  SLEET AND SNOW MONDAY EVENING. SNOW MAY BECOME HEAVY AT TIME 
  LATE MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH 
  SUBSTANTIAL BLOWING AND DRIFTING... BEFORE TAPERING OFF 
  TUESDAY AFTERNOON. 

* MAIN IMPACT: A CRIPPLING COMBINATION OF SNOW AND BLOWING SNOW 
  FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING 
  TRAVEL VERY DIFFICULT OR IMPOSSIBLE. 

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG 
  WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON 
  EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL 
  POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND 
  NEAR-WHITEOUT CONDITIONS IN SOME AREAS. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND HAZARDOUS
  AS EARLY AS MONDAY EVENING... MAKING TRAVEL TREACHEROUS. VERY
  COLD CONDITIONS FOLLOWING THE STORM MAY KEEP SOME ROADS FROZEN
  AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER 
  CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND 
  OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY 
  NECESSARY MEDICATION. 

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO 
  PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE 
  RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY. 

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS 
  DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN 
  BE FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY 
  TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION 
  FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT. 

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ006-011-014>017-021-022-032>039-041-042-044>046-050-TXZ083>090-
310615-
/O.CON.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-ROGER MILLS-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-
HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-
MURRAY-PONTOTOC-COTTON-JEFFERSON-CARTER-LOVE-HARDEMAN-FOARD-
WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...CHEYENNE...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...
FREDERICK...LAWTON...DUNCAN...SULPHUR...ADA...WALTERS...WAURIKA...
ARDMORE...MARIETTA...QUANAH...CHILLICOTHE...CROWELL...VERNON...
WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...
HOLLIDAY...LAKESIDE CITY...HENRIETTA
415 PM CST SUN JAN 30 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE 
  FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN 
  MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY. 

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO 
  DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE 
  OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE 
  PRECIPITATION IS EXPECTED TO BE VERY LIGHT. 

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE POSSIBLE IN 
  THE WATCH AREA. 

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND 
  WILL CREATE POOR VISIBILITY. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES 
  FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS 
  FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS 
  DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY 
  IMPOSSIBLE IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH 
  MONDAY.. IT WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER 
  PROVISIONS... INCLUDING ANY NECESSARY MEDICAL SUPPLIES. 

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE 
  DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE 
  WEATHER. 

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE 
  WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL 
  RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS 
  WEATHER EVENT. 

&&

$$

OKZ004-005-009-010-310615-
/O.CON.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
415 PM CST SUN JAN 30 2011

...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING...

A WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING. 

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK 
  TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO 
  WEDNESDAY MORNING. 

* IMPACTS: IN ADDITION TO LIFE-THREATENING COLD... SNOW AND 
  BLOWING SNOW ARE LIKELY MONDAY NIGHT INTO EARLY TUESDAY. 
  ACCUMULATIONS UP TO 4 INCHES ARE POSSIBLE... WITH DEEPER 
  DRIFTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
958 PM CST SUN JAN 30 2011

OKZ007-008-012-013-018>020-023>031-040-311200-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
958 PM CST SUN JAN 30 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO
6 PM CST TUESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO 6 PM
CST TUESDAY. 

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE 
  FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN 
  MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY. 

* TIMING: RAIN WILL CHANGE QUICKLY TO A MIX OF FREEZING RAIN 
  SLEET AND SNOW MONDAY EVENING. SNOW MAY BECOME HEAVY AT TIMES 
  LATE MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH 
  SUBSTANTIAL BLOWING AND DRIFTING... BEFORE TAPERING OFF 
  TUESDAY AFTERNOON. 

* MAIN IMPACT: A CRIPPLING COMBINATION OF SNOW AND BLOWING SNOW 
  FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING 
  TRAVEL VERY DIFFICULT OR IMPOSSIBLE. 

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG 
  WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON 
  EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL 
  POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR- 
  WHITEOUT CONDITIONS IN SOME AREAS. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS AS EARLY AS MONDAY EVENING... MAKING TRAVEL 
  TREACHEROUS. VERY COLD CONDITIONS FOLLOWING THE STORM MAY KEEP 
  SOME ROADS FROZEN AND HAZARDOUS FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER 
  CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND 
  OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY 
  NECESSARY MEDICATION. 

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO 
  PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE 
  RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY. 

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS 
  DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN 
  BE FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY 
  TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION 
  FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT. 

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ006-011-014>017-021-022-032>039-041-042-044>046-050-TXZ083>090-
311200-
/O.CON.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-ROGER MILLS-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-
HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-
MURRAY-PONTOTOC-COTTON-JEFFERSON-CARTER-LOVE-HARDEMAN-FOARD-
WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...CHEYENNE...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...
FREDERICK...LAWTON...DUNCAN...SULPHUR...ADA...WALTERS...WAURIKA...
ARDMORE...MARIETTA...QUANAH...CHILLICOTHE...CROWELL...VERNON...
WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...
HOLLIDAY...LAKESIDE CITY...HENRIETTA
958 PM CST SUN JAN 30 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON. 

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN ARE EXPECTED TO 
  DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE 
  OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE 
  PRECIPITATION IS EXPECTED TO BE VERY LIGHT. 

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE POSSIBLE IN 
  THE WATCH AREA. 

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND 
  WILL CREATE POOR VISIBILITY. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES 
  FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS 
  FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS 
  DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY 
  IMPOSSIBLE IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH 
  MONDAY.. IT WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER 
  PROVISIONS... INCLUDING ANY NECESSARY MEDICAL SUPPLIES. 

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE 
  DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE 
  WEATHER. 

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE 
  WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL 
  RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS 
  WEATHER EVENT. 

&&

$$

OKZ004-005-009-010-311200-
/O.CON.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
958 PM CST SUN JAN 30 2011

...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING...

A WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING. 

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK 
  TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO 
  WEDNESDAY MORNING. 

* IMPACTS: IN ADDITION TO LIFE-THREATENING COLD... SNOW AND 
  BLOWING SNOW ARE LIKELY MONDAY NIGHT INTO EARLY TUESDAY. 
  ACCUMULATIONS UP TO 4 INCHES ARE POSSIBLE... WITH DEEPER 
  DRIFTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

&&

$$

CMS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
417 AM CST MON JAN 31 2011

OKZ006-011-015>017-022-032-035-038-039-041-042-046-311830-
/O.UPG.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-DEWEY-CUSTER-BLAINE-WASHITA-HUGHES-KIOWA-COMANCHE-
STEPHENS-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...TALOGA...
WEATHERFORD...CLINTON...WATONGA...CORDELL...HOLDENVILLE...
HOBART...LAWTON...DUNCAN...SULPHUR...ADA...ARDMORE
417 AM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR SNOW...SLEET AND SOME FREEZING RAIN...WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
  FOUR CORNERS REGION BY MIDDAY. THIS SYSTEM WILL THEN MOVE
  ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN ARE EXPECTED TO 
  DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE 
  OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE 
  PRECIPITATION IS EXPECTED TO BE VERY LIGHT. 

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE LIKELY.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND 
  WILL CREATE POOR VISIBILITY. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES 
  FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS 
  FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS 
  DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY 
  IMPOSSIBLE IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH 
  MONDAY.. IT WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER 
  PROVISIONS... INCLUDING ANY NECESSARY MEDICAL SUPPLIES. 

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE 
  DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE 
  WEATHER. 

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE 
  WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL 
  RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS 
  WEATHER EVENT. 

&&



PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ007-008-012-013-018>020-023>031-040-311830-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
417 AM CST MON JAN 31 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY...


* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
  FOUR CORNERS REGION BY MIDDAY. THIS SYSTEM WILL THEN MOVE
  ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: A MIX OF FREEZING RAIN...SLEET AND SNOW MONDAY EVENING
  WILL QUICKLY CHANGE TO ALL SNOW BY MIDNIGHT. THE SNOW MAY BE HEAVY
  AT TIMES LATE MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH
  SUBSTANTIAL BLOWING AND DRIFTING... BEFORE TAPERING OFF TUESDAY
  AFTERNOON.

* MAIN IMPACT: A COMBINATION OF SNOW AND BLOWING SNOW FROM LATE
  MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING TRAVEL VERY
  DIFFICULT OR IMPOSSIBLE. SNOWFALL AMOUNTS OF 4 TO 8 INCHES ARE
  LIKELY.  

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG 
  WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON 
  EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL 
  POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR- 
  WHITEOUT CONDITIONS IN SOME AREAS. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS AS EARLY AS MONDAY EVENING... MAKING TRAVEL 
  TREACHEROUS. VERY COLD CONDITIONS FOLLOWING THE STORM MAY KEEP 
  SOME ROADS FROZEN AND HAZARDOUS FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER 
  CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND 
  OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY 
  NECESSARY MEDICATION. 

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO 
  PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE 
  RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY. 

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS 
  DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN 
  BE FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY 
  TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION 
  FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT. 

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ014-021-033-034-036-037-044-045-050-TXZ083>090-311830-
/O.UPG.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
ROGER MILLS-BECKHAM-HARMON-GREER-JACKSON-TILLMAN-COTTON-JEFFERSON-
LOVE-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEYENNE...ELK CITY...SAYRE...HOLLIS...
MANGUM...ALTUS...FREDERICK...WALTERS...WAURIKA...MARIETTA...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
417 AM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...SLEET...AND FREEZING RAIN WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN ARE EXPECTED TO
  DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
  OVERNIGHT HOURS. BY MIDNIGHT MOST OF THE PRECIPITATION WILL BE
  IN THE FORM OF SNOW. MOST OF THE PRECIPITATION IS EXPECTED TO BE
  VERY LIGHT AFTER NOON TUESDAY.

* MAIN IMPACT: 1 TO 4 INCHES OF SLEET AND SNOW ARE POSSIBLE. 

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND 
  WILL CREATE POOR VISIBILITY. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
  DEVELOPING BY MONDAY NIGHT. FROM NOW THROUGH MONDAY.. IT WILL
  BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS...
  INCLUDING ANY NECESSARY MEDICAL SUPPLIES.


* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE 
  WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL 
  RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS 
  WEATHER EVENT. 

&&


PRECAUTIONARY/PREPAREDNESS ACTIONS...BE CAREFUL IF YOU HAVE TO
TRAVEL. EVEN SMALL AMOUNTS OF ICE AND SNOW CAN MAKE ROADS AND
SIDEWALKS SLICK AND DANGEROUS.

&&

$$

OKZ004-005-009-010-311830-
/O.NEW.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.CON.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
417 AM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY...
...WIND CHILL WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND SOME SLEET...WHICH IS IN EFFECT FROM
6 PM THIS EVENING TO 6 PM CST TUESDAY. A WIND CHILL WATCH REMAINS
IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY MORNING.

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK 
  TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO 
  WEDNESDAY MORNING. 

* IMPACTS: SNOW AND SLEET ACCUMULATIONS OF 1 TO 3 INCHES POSSIBLE
  WITH BITTERLY COLD WIND CHILL VALUES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

OKZ043-047-048-051-052-311830-
/O.NEW.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
COAL-JOHNSTON-ATOKA-MARSHALL-BRYAN-
INCLUDING THE CITIES OF...COALGATE...TISHOMINGO...ATOKA...
MADILL...DURANT
417 AM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN...SLEET AND SNOW...WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY.

* TIMING: RAIN IS EXPECTED TO DEVELOP MONDAY EVENING THEN CHANGE
  TO FREEZING RAIN AND SLEET DURING THE OVERNIGHT HOURS. A THIN
  LAYER OF ICE IS POSSIBLE BEFORE CHANGING TO MAINLY SLEET. BY
  SUNRISE TUESDAY MOST OF THE PRECIPITATION WILL BE IN THE FORM OF
  SLEET AND SNOW. MOST OF THE PRECIPITATION IS EXPECTED TO BE LIGHT
  AFTER NOON TUESDAY.

* MAIN IMPACT: 1 TO 3 INCHES OF SLEET AND SNOW ARE POSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
  WILL ALSO CREATE BLOWING AND DRIFTING OF SNOW AND WILL CREATE
  POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
1204 PM CST MON JAN 31 2011

OKZ004-005-009-010-010215-
/O.UPG.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.UPG.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
/O.NEW.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...
...WIND CHILL WARNING IN EFFECT FROM 6 PM TUESDAY TO NOON CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR SNOW...WIND...AND EXTREME COLD...WHICH IS IN EFFECT 
FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. A WIND CHILL WARNING
HAS ALSO BEEN ISSUED. THIS WIND CHILL WARNING IS IN EFFECT FROM 6
PM TUESDAY TO NOON CST WEDNESDAY. THE WINTER WEATHER ADVISORY IS
NO LONGER IN EFFECT. THE WIND CHILL WATCH IS NO LONGER IN EFFECT.

* TIMING: WINTER STORM TONIGHT AND TUESDAY. EXTREME COLD THEN
  CONTINUING THROUGH WEDNESDAY MORNING.

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS. BLOWING
  SNOW AND LOW VISIBILITY.

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING BELOW
  ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM
  TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE
NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY

&&

$$

OKZ014-010215-
/O.UPG.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
ROGER MILLS-
INCLUDING THE CITY OF...CHEYENNE
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...
...WIND CHILL WARNING IN EFFECT FROM 6 PM TUESDAY TO NOON CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR SNOW...WIND...AND EXTREME COLD...WHICH IS IN EFFECT
FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. A WIND CHILL WARNING
HAS ALSO BEEN ISSUED. THIS WIND CHILL WARNING IS IN EFFECT FROM 6
PM TUESDAY TO NOON CST WEDNESDAY. THE WINTER WEATHER ADVISORY IS
NO LONGER IN EFFECT.

* TIMING: WINTER STORM TONIGHT AND TUESDAY. EXTREME COLD THEN
  CONTINUING THROUGH WEDNESDAY MORNING.

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS. BLOWING
  SNOW AND LOW VISIBILITY.

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING BELOW
  ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM TUESDAY
  AFTERNOON THROUGH WEDNESDAY MORNING.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS 
  DEVELOPING BY MONDAY NIGHT. FROM NOW THROUGH MONDAY.. IT WILL 
  BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS... 
  INCLUDING ANY NECESSARY MEDICAL SUPPLIES. 

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE 
  WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL 
  RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS 
  WEATHER EVENT. 

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE
NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY

&&

$$

OKZ021-033-034-036-037-043>045-047-050-051-TXZ083>090-010215-
/O.UPG.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
BECKHAM-HARMON-GREER-JACKSON-TILLMAN-COAL-COTTON-JEFFERSON-
JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-
BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...ELK CITY...SAYRE...HOLLIS...MANGUM...
ALTUS...FREDERICK...COALGATE...WALTERS...WAURIKA...TISHOMINGO...
MARIETTA...MADILL...QUANAH...CHILLICOTHE...CROWELL...VERNON...
WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...
HOLLIDAY...LAKESIDE CITY...HENRIETTA
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR ICE...SNOW...WIND...AND EXTREME COLD...WHICH IS IN 
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. THE WINTER
WEATHER ADVISORY IS NO LONGER IN EFFECT.

* TIMING: FREEZING RAIN AND SLEET FROM LATE EVENING THROUGH EARLY
  TUESDAY. SNOW AND BLOWING SNOW ON TUESDAY. WIND CHILL
  TEMPERATURES CONTINUALLY FALLING.

* MAIN IMPACT: ONE TENTH TO ONE QUARTER INCH OF GLAZE FROM
  FREEZING RAIN...FOLLOWED BY SLEET AND SNOW ACCUMULATIONS OF 3 TO
  5 INCHES. STRONG AND GUSTY WINDS WITH CREATING BLOWING SNOW AND
  POOR VISIBILITY.

* EXTREME COLD: DANGEROUS WIND CHILL TEMPERATURES RANGING FROM
  ZERO TO 15 DEGREES BELOW ZERO BEGINNING EARLY TUESDAY.

* OTHER IMPACTS: ROADS...BRIDGES...AND OVERPASSES WILL BECOME
  SLICK AND HAZARDOUS...MAKING TRAVEL TREACHEROUS. SCATTERED POWER
  OUTAGES ARE POSSIBLE.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE
NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY

&&


$$

OKZ006>008-011>013-015>020-022>032-035-038>042-046-010215-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
ALFALFA-GRANT-KAY-MAJOR-GARFIELD-NOBLE-DEWEY-CUSTER-BLAINE-
KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-
GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-KIOWA-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...PONCA CITY...
FAIRVIEW...ENID...PERRY...TALOGA...WEATHERFORD...CLINTON...
WATONGA...KINGFISHER...GUTHRIE...STILLWATER...CORDELL...
ANADARKO...YUKON...EL RENO...MUSTANG...OKLAHOMA CITY...CHANDLER...
CHICKASHA...PURCELL...NORMAN...MOORE...SHAWNEE...SEMINOLE...
HOLDENVILLE...HOBART...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...ARDMORE
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY. 

* TIMING: LIGHT PRECIPITATION EARLY TONIGHT...THEN HEAVY WINTRY
  PRECIPITATION LATE TONIGHT THROUGH TUESDAY AFTERNOON.

* MAIN IMPACT: INITIALLY LIGHT FREEZING RAIN AND SLEET. FREEZING
  RAIN MORE SIGNIFICANT SOUTH OF A LAWTON TO SHAWNEE LINE...WHERE
  A TENTH TO QUARTER INCH GLAZE IS POSSIBLE BEFORE CHANGING TO
  SLEET AND SNOW. SNOWFALL HEAVY AT TIMES...ESPECIALLY CENTRAL AND
  NORTH CENTRAL OKLAHOMA.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG 
  WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON 
  EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL 
  POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR- 
  WHITEOUT CONDITIONS IN SOME AREAS. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS AS EARLY AS MONDAY EVENING... MAKING TRAVEL 
  TREACHEROUS. VERY COLD CONDITIONS FOLLOWING THE STORM MAY KEEP 
  SOME ROADS FROZEN AND HAZARDOUS FOR SEVERAL DAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER 
  CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND 
  OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY 
  NECESSARY MEDICATION. 

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO 
  PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE 
  RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY. 

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
  FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
  AND INFORMATION.

&&

$$

OKZ048-052-010215-
/O.CON.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
1204 PM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM CST TUESDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM CST TUESDAY. 

* TIMING: RAIN IS EXPECTED TO DEVELOP MONDAY EVENING THEN CHANGE 
  TO FREEZING RAIN AND SLEET DURING THE OVERNIGHT HOURS. A THIN 
  LAYER OF ICE IS POSSIBLE BEFORE CHANGING TO MAINLY SLEET. BY 
  SUNRISE TUESDAY MOST OF THE PRECIPITATION WILL BE IN THE FORM 
  OF SLEET AND SNOW. MOST OF THE PRECIPITATION IS EXPECTED TO BE 
  LIGHT AFTER NOON TUESDAY. 

* MAIN IMPACT: 1 TO 3 INCHES OF SLEET AND SNOW ARE POSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE BLOWING AND DRIFTING OF SNOW AND WILL CREATE 
  POOR VISIBILITY. 

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND 
  HAZARDOUS...MAKING TRAVEL TREACHEROUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

BURKE

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
345 PM CST MON JAN 31 2011

OKZ008-012-013-018>020-024>026-029-030-011000-
/O.CAN.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.BZ.W.0001.110201T0400Z-110202T0000Z/
KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-
LINCOLN-CLEVELAND-POTTAWATOMIE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...NORMAN...MOORE...SHAWNEE
345 PM CST MON JAN 31 2011

...BLIZZARD WARNING IN EFFECT FROM 10 PM THIS EVENING TO 6 PM CST
TUESDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 6 PM CST
TUESDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. 

* TIMING: LIGHT WINTRY MIX BY MIDNIGHT...QUICKLY TURNING TO HEAVY
  SNOW AND BLOWING SNOW BY SUNRISE...PERSISTING THROUGH TUESDAY.

* MAIN IMPACT: MODERATE TO HEAVY SNOWFALL FROM AROUND 3 AM TO 3
  PM. WINDS GUSTING OVER 45 MPH ON TUESDAY...CREATING BLOWING
  SNOW...NEAR WHITEOUT CONDITIONS...AND EXTREME COLD.

* OTHER IMPACTS: WIND CHILL TEMPERATURES 5 TO 15 DEGREES BELOW
  ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* DO NOT TRAVEL! STAY INSIDE! STRONG WINDS AND BLINDING SNOW WILL
  MAKE TRAVEL NEARLY IMPOSSIBLE. THIS IS A LIFE THREATENING STORM.
  EVEN PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED. 

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING HYPOTHERMIA
  CAN HAPPEN QUICKLY.

&&

$$

OKZ004-005-009-010-014-011000-
/O.EXT.KOUN.WS.W.0001.110201T0400Z-110202T0000Z/
/O.CON.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
345 PM CST MON JAN 31 2011

...WINTER STORM WARNING NOW IN EFFECT FROM 10 PM THIS EVENING TO
6 PM CST TUESDAY...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM TUESDAY TO NOON
CST WEDNESDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 10 PM THIS EVENING
TO 6 PM CST TUESDAY. A WIND CHILL WARNING REMAINS IN EFFECT FROM
6 PM TUESDAY TO NOON CST WEDNESDAY. 

* TIMING: WINTER STORM TONIGHT AND TUESDAY. EXTREME COLD THEN 
  CONTINUING THROUGH WEDNESDAY MORNING. 

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS. 
  BLOWING SNOW AND LOW VISIBILITY. 

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING 
  BELOW ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM 
  TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR FAMILY
  IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS AND
  INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO
  SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
  HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ006-007-011-015>017-021>023-027-028-031>047-050-051-TXZ083>090-
011000-
/O.EXT.KOUN.WS.W.0001.110201T0400Z-110202T0000Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-CADDO-
GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...ANADARKO...CHICKASHA...PURCELL...SEMINOLE...
HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...FREDERICK...
LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...ADA...COALGATE...
WALTERS...WAURIKA...ARDMORE...TISHOMINGO...MARIETTA...MADILL...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
345 PM CST MON JAN 31 2011

...WINTER STORM WARNING NOW IN EFFECT FROM 10 PM THIS EVENING TO
6 PM CST TUESDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 10 PM THIS EVENING
TO 6 PM CST TUESDAY. 

* TIMING: LIGHT PRECIPITATION EARLY TONIGHT...THEN HEAVY WINTRY 
  PRECIPITATION LATE TONIGHT THROUGH TUESDAY AFTERNOON. 

* MAIN IMPACT: INITIALLY LIGHT FREEZING RAIN AND SLEET. FREEZING
  RAIN MORE SIGNIFICANT SOUTH OF A LAWTON TO SHAWNEE LINE... WHERE
  A TENTH TO QUARTER INCH GLAZE IS POSSIBLE BEFORE CHANGING TO
  SLEET AND SNOW. SNOWFALL HEAVY AT TIMES WITH ACCUMULATION OF 3
  TO 7 INCHES.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
  WIND CHILL TEMPERATURES WELL BELOW ZERO. THE STRONG WINDS WILL CAUSE
  BLOWING SNOW AND VERY POOR VISIBILITY...REGARDLESS OF HOW LITTLE
  SNOW FALLS. DISRUPTIONS OF COMMERCIAL POWER ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR FAMILY
  IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS AND
  INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO
  SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
  HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ048-052-011000-
/O.EXT.KOUN.WW.Y.0004.110201T0600Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
345 PM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST TUESDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST TUESDAY. 

* TIMING: PERIODS OF FREEZING RAIN AND SLEET BEGINNING AFTER
  MIDNIGHT...CHANGING TO SNOW AFTER SUNRISE TUESDAY.

* MAIN IMPACT: UP TO ONE TENTH INCH OF GLAZE FROM FREEZING
  RAIN...FOLLOWED BY 1 TO 2 INCHES OF SLEET AND SNOW.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
  WIND CHILL TEMPERATURES NEAR ZERO TUESDAY. THE STRONG WINDS WILL
  ALSO CREATE BLOWING AND DRIFTING SNOW AND POOR VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

BURKE

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
455 AM CST TUE FEB 1 2011

OKZ008-012-013-018>020-024>026-029-030-012145-
/O.CON.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-
LINCOLN-CLEVELAND-POTTAWATOMIE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...NORMAN...MOORE...SHAWNEE
455 AM CST TUE FEB 1 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING: MODERATE TO HEAVY SNOW WILL GRADUALLY TAPER TO SCATTERED
  SNOW SHOWERS AROUND NOON.

* MAIN IMPACT: WINDS GUSTING OVER 45 MPH...CREATING BLOWING
  SNOW...NEAR WHITEOUT CONDITIONS...AND EXTREME COLD. STORM TOTAL
  SNOWFALL 6 TO 10 INCHES.

* OTHER IMPACTS: WIND CHILL TEMPERATURES 5 TO 15 DEGREES BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* DO NOT TRAVEL! STAY INSIDE! STRONG WINDS AND BLINDING SNOW 
  WILL MAKE TRAVEL NEARLY IMPOSSIBLE. THIS IS A LIFE THREATENING 
  STORM. EVEN PEDESTRIANS IN FAMILIAR AREAS MAY BECOME 
  DISORIENTED. 

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ004-005-009-010-014-012145-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.CON.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
455 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST WEDNESDAY...

* TIMING: LIGHT TO MODERATE SNOW WILL GRADUALLY END DURING THE
  MORNING. EXTREME COLD THEN CONTINUING THROUGH WEDNESDAY
  MORNING.

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS. 
  BLOWING SNOW AND LOW VISIBILITY. 

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING 
  BELOW ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM 
  TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR 
  FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS 
  AND INFORMATION. 

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND 
  LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE 
  THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ006-007-011-015>017-021>023-027-028-031>047-050-051-TXZ083>090-
012145-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-CADDO-
GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...ANADARKO...CHICKASHA...PURCELL...SEMINOLE...
HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...FREDERICK...
LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...ADA...COALGATE...
WALTERS...WAURIKA...ARDMORE...TISHOMINGO...MARIETTA...MADILL...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
455 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING: SNOW SOME HEAVY WILL GRADUALLY TAPER TO SNOW SHOWERS
  DURING THE EARLY TO MID MORNING HOURS. 

* MAIN IMPACT: SNOWFALL HEAVY AT TIMES WITH ACCUMULATION OF 4 TO 8
  INCHES. HEAVIEST SNOWFALL WILL LIKELY OCCUR FROM PARTS OF
  WESTERN NORTH TEXAS INTO SOUTH CENTRAL AND SOUTHEAST OKLAHOMA.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL TEMPERATURES WELL BELOW ZERO. THE STRONG WINDS WILL 
  CAUSE BLOWING SNOW AND VERY POOR VISIBILITY...REGARDLESS OF 
  HOW LITTLE SNOW FALLS. DISRUPTIONS OF COMMERCIAL POWER ARE 
  POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR 
  FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS 
  AND INFORMATION. 

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND 
  LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE 
  THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ048-052-012145-
/O.CON.KOUN.WW.Y.0004.000000T0000Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
455 AM CST TUE FEB 1 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING: PERIODS OF SLEET AND SNOW BECOMING ALL SNOW DURING THE
  EARLY MORNING. SNOW ENDING BY THE LATE MORNING HOURS. 

* MAIN IMPACT: UP TO ONE TENTH INCH OF GLAZE FROM FREEZING
  RAIN...FOLLOWED BY 2 TO 4 INCHES OF SLEET AND SNOW.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS 
  WIND CHILL TEMPERATURES NEAR ZERO TUESDAY. THE STRONG WINDS 
  WILL ALSO CREATE BLOWING AND DRIFTING SNOW AND POOR 
  VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
1121 AM CST TUE FEB 1 2011

OKZ008-012-013-018>020-024>026-029-030-020000-
/O.CON.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-
LINCOLN-CLEVELAND-POTTAWATOMIE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...NORMAN...MOORE...SHAWNEE
1121 AM CST TUE FEB 1 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
FOR PARTS OF NORTH CENTRAL AND CENTRAL OKLAHOMA.

* TIMING: OCCASIONAL BANDS OF MODERATE SNOW THROUGH MID-AFTERNOON.
  THE OVERALL SNOW COVERAGE WILL GRADUALLY DECREASE.

* MAIN IMPACT: WINDS GUSTING OVER 45 MPH...CREATING BLOWING
  SNOW...NEAR WHITEOUT CONDITIONS...AND EXTREME COLD.

* OTHER IMPACTS: WIND CHILL TEMPERATURES 10 TO 20 DEGREES BELOW
  ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* DO NOT TRAVEL! STAY INSIDE! STRONG WINDS AND BLINDING SNOW 
  WILL MAKE TRAVEL NEARLY IMPOSSIBLE. THIS IS A LIFE THREATENING 
  STORM. EVEN PEDESTRIANS IN FAMILIAR AREAS MAY BECOME 
  DISORIENTED. 

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ004-005-009-010-014-020130-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.CON.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
1121 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST WEDNESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING. A WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST WEDNESDAY FOR PARTS OF NORTHWEST OKLAHOMA.

* TIMING: LIGHT SNOW OR SNOW FLURRIES WILL TAPER OFF BY MID-
  AFTERNOON. DANGEROUS WIND CHILLS WILL CONTINUE THIS AFTERNOON
  THROUGH WEDNESDAY MORNING.

* MAIN IMPACTS: DANGEROUS WIND CHILL TEMPERATURES 20 TO 25 DEGREES
  BELOW ZERO.

* OTHER IMPACTS: STRONG AND GUSTY WINDS. BLOWING SNOW AND LOW
  VISIBILITY WILL OCCUR EVEN AFTER THE SNOW STOPS FALLING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR 
  FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS 
  AND INFORMATION. 

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND 
  LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE 
  THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ006-007-011-015>017-021>023-027-028-031>047-050-051-TXZ083>090-
020000-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-CADDO-
GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...ANADARKO...CHICKASHA...PURCELL...SEMINOLE...
HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...FREDERICK...
LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...ADA...COALGATE...
WALTERS...WAURIKA...ARDMORE...TISHOMINGO...MARIETTA...MADILL...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
1121 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING FOR PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS.

* TIMING: SNOW WILL TAPER OFF FROM WEST TO EAST THIS AFTERNOON.

* MAIN IMPACT: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS WIND
  CHILL TEMPERATURES WELL BELOW ZERO. THE STRONG WINDS WILL CAUSE
  BLOWING SNOW AND VERY POOR VISIBILITY...REGARDLESS OF HOW MUCH
  SNOW IS FALLING IF ANY. DISRUPTIONS OF COMMERCIAL POWER ARE
  POSSIBLE.

* OTHER IMPACTS: LIGHT SNOWFALL OR SNOW FLURRIES WILL AFFECT MOST
  OF THE AREA WITH OCCASIONAL POCKETS OF MODERATE SNOW POSSIBLE
  THROUGH MID-AFTERNOON MAINLY NEAR AND EAST OF INTERSTATE 35.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR 
  FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS 
  AND INFORMATION. 

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND 
  LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE 
  THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ048-052-020000-
/O.CON.KOUN.WW.Y.0004.000000T0000Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
1121 AM CST TUE FEB 1 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING FOR PARTS OF SOUTHEAST OKLAHOMA.

* TIMING: LIGHT SNOW OR SNOW FLURRIES WILL OCCUR THROUGH THE
  AFTERNOON HOURS.

* MAIN IMPACT: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS WIND
  CHILL TEMPERATURES NEAR ZERO THIS AFTERNOON. THE STRONG WINDS
  WILL ALSO CREATE BLOWING AND DRIFTING SNOW AND POOR VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
304 PM CST TUE FEB 1 2011

OKZ008-012-013-021100-
/O.CAN.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
/O.EXB.KOUN.WC.W.0001.110201T2104Z-110202T1500Z/
KAY-GARFIELD-NOBLE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY
304 PM CST TUE FEB 1 2011

...WIND CHILL WARNING IN EFFECT UNTIL 9 AM CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL 9 AM CST WEDNESDAY. A WIND
CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND CHILL ADVISORY IS
IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST THURSDAY. THE BLIZZARD
WARNING HAS BEEN CANCELLED. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THROUGH WEDNESDAY
  MORNING...THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
  SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
  BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ018>020-024>026-029-030-021100-
/O.CAN.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110201T2104Z-110203T1800Z/
KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-LINCOLN-CLEVELAND-
POTTAWATOMIE-
INCLUDING THE CITIES OF...KINGFISHER...GUTHRIE...STILLWATER...
YUKON...EL RENO...MUSTANG...OKLAHOMA CITY...CHANDLER...NORMAN...
MOORE...SHAWNEE
304 PM CST TUE FEB 1 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST THURSDAY...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE
BLIZZARD WARNING HAS BEEN CANCELLED. 


* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING. 

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW ZERO
  FOR AN EXTENDED PERIOD OF TIME...THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
  SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
  BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ006-007-011-015-016-021-021100-
/O.CAN.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
/O.EXB.KOUN.WC.W.0001.110201T2104Z-110202T1500Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
304 PM CST TUE FEB 1 2011

...WIND CHILL WARNING IN EFFECT UNTIL 9 AM CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL 9 AM CST WEDNESDAY. A WIND
CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND CHILL ADVISORY IS
IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST THURSDAY. THE WINTER
STORM WARNING HAS BEEN CANCELLED. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THROUGH WEDNESDAY
  MORNING...THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
  SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR 
  FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS 
  AND INFORMATION. 

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND 
  LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE 
  THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ004-005-009-010-014-021100-
/O.CAN.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
/O.EXT.KOUN.WC.W.0001.110201T2104Z-110202T1500Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
304 PM CST TUE FEB 1 2011

...WIND CHILL WARNING NOW IN EFFECT UNTIL 9 AM CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. THE WIND
CHILL WARNING IS NOW IN EFFECT UNTIL 9 AM CST WEDNESDAY. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THROUGH WEDNESDAY
  MORNING...THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
  SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
  BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING HYPOTHERMIA
  CAN HAPPEN QUICKLY.

&&

$$

OKZ017-022-023-027-028-031>047-050-051-TXZ083>090-021100-
/O.CAN.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110201T2104Z-110203T1800Z/
BLAINE-WASHITA-CADDO-GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-
KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-
COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...CORDELL...ANADARKO...
CHICKASHA...PURCELL...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...
HOBART...ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...
SULPHUR...ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...
TISHOMINGO...MARIETTA...MADILL...QUANAH...CHILLICOTHE...CROWELL...
VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
304 PM CST TUE FEB 1 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE WINTER
STORM WARNING HAS BEEN CANCELLED. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW ZERO
  FOR AN EXTENDED PERIOD OF TIME...THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
  SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
  BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ048-052-021100-
/O.CAN.KOUN.WW.Y.0004.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110201T2104Z-110203T1800Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
304 PM CST TUE FEB 1 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST THURSDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE WINTER
WEATHER ADVISORY HAS BEEN CANCELLED. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW
  ZERO FOR AN EXTENDED PERIOD OF TIME...THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
  SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
  BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
424 AM CST WED FEB 2 2011

OKZ004>016-021-021800-
/O.CON.KOUN.WC.W.0001.000000T0000Z-110202T1500Z/
/O.CON.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
424 AM CST WED FEB 2 2011

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO NOON CST THURSDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING. A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 AM THIS
MORNING TO NOON CST THURSDAY. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THIS MORNING...
  THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY. EXTENDED PERIOD
  OF SUBFREEZING TEMPERATURES COULD CAUSE SOME PIPES TO BURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN
  LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
  THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. MONITOR WEATHER
  FORECASTS AND INFORMATION.

&&

$$

OKZ017>020-022>048-050>052-TXZ083>090-021800-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
424 AM CST WED FEB 2 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW ZERO
  THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING
  TEMPERATURES COULD CAUSE SOME PIPES TO BURST. 

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE
  TRAVEL DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
906 AM CST WED FEB 2 2011

OKZ004>016-021-022315-
/O.EXP.KOUN.WC.W.0001.000000T0000Z-110202T1500Z/
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
906 AM CST WED FEB 2 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...
...WIND CHILL WARNING HAS EXPIRED...

THE WIND CHILL WARNING IS NO LONGER IN EFFECT. A WIND CHILL
ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILLS WILL RANGE FROM BETWEEN 5 TO AROUND 15
  BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY. EXTENDED PERIOD 
  OF SUBFREEZING TEMPERATURES COULD CAUSE SOME PIPES TO BURST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN 
  LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND 
  LIFE THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. MONITOR 
  WEATHER FORECASTS AND INFORMATION. 

&&

$$

OKZ017>020-022>048-050>052-TXZ083>090-022315-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
906 AM CST WED FEB 2 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY
ACROSS MUCH OF OKLAHOMA AND ALL OF WESTERN NORTH TEXAS.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW 
  ZERO THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING 
  TEMPERATURES COULD CAUSE SOME PIPES TO BURST. 

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE 
  TRAVEL DIFFICULT AND HAZARDOUS. 

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
108 AM CST THU FEB 3 2011

OKZ017>020-022>048-050>052-TXZ083>090-031515-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
108 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW 
  ZERO THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING 
  TEMPERATURES COULD CAUSE SOME PIPES TO BURST. 

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE 
  TRAVEL DIFFICULT IN SOME AREAS. 

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ004>016-021-031515-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
108 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILLS WILL RANGE FROM BETWEEN 5 TO AROUND 
  15 BELOW THROUGH THURSDAY MORNING. 

* EXTENDED PERIOD OF SUBFREEZING TEMPERATURES COULD CAUSE SOME
  PIPES TO BURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN
  LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
  THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
443 AM CST THU FEB 3 2011

OKZ017>020-022>048-050>052-TXZ083>090-031800-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
443 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

* TIMING: DANGEROUSLY COLD THROUGH THIS MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW 
  ZERO THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING 
  TEMPERATURES COULD CAUSE SOME PIPES TO BURST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE 
  TRAVEL DIFFICULT IN SOME AREAS. 

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN 
  EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING 
  HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

OKZ004>016-021-031800-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
443 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

* TIMING: DANGEROUSLY COLD THROUGH THIS MORNING.

* MAIN IMPACT: WIND CHILLS WILL RANGE FROM BETWEEN 5 TO AROUND 15
  BELOW ZERO THROUGH THIS MORNING.

* EXTENDED PERIOD OF SUBFREEZING TEMPERATURES COULD CAUSE SOME 
  PIPES TO BURST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN 
  LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND 
  LIFE THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. 

&&

$$

Special Weather Statements (SPS)

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1026 AM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-282300- 
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1026 AM CST FRI JAN 28 2011

...BIG CHANGES ON THE WAY FOR PARTS OF OKLAHOMA AND NORTH TEXAS...

WINTER WEATHER WILL AFFECT OKLAHOMA AND NORTH TEXAS EARLY NEXT WEEK. 
MUCH COLDER TEMPERATURES ARE EXPECTED AS WELL AS THE CHANCE OF 
WINTER PRECIPITATION... ALTHOUGH THE TYPE AND AMOUNT OF WINTER 
PRECIPTIATION IS STILL UNCERTAIN.

A COLD FRONT WILL MOVE INTO THE AREA LATE SATURDAY INTO SUNDAY. THIS 
WILL LEAD TO COOLER CONDITIONS SUNDAY WITH HIGH TEMPERATURES CLOSER 
TO NORMAL. MEANWHILE... A DISTURBANCE WILL MOVE EAST ACROSS TEXAS 
BRINGING A CHANCE OF LIGHT RAIN TO PARTS OF SOUTHERN AND CENTRAL 
OKLAHOMA AND NORTH TEXAS SATURDAY NIGHT AND SUNDAY. 

EVEN COOLER TEMPERATURES ARE EXPECTED MONDAY AS COOL AIR CONTINUES 
TO MOVE INTO THE REGION. LOW PRECIPITATION CHANCES WILL EXPAND NORTH 
AND WEST SUNDAY NIGHT AND MONDAY. MOST OF THE PRECIPITATION WILL 
FALL IN THE FORM OF LIGHT RAIN OR DRIZZLE. HOWEVER... LIGHT WINTER 
PRECIPITATION WILL BEGIN TO BE POSSIBLE ACROSS PARTS OF NORTHERN AND 
MAYBE INTO CENTRAL OKLAHOMA.

THE BIGGEST CHANGES WILL OCCUR MONDAY NIGHT INTO TUESDAY. A MUCH 
COLDER ARCTIC AIRMASS WILL MOVE INTO THE REGION TUESDAY... WITH 
PRECIPITATION CHANCES INCREASING MONDAY NIGHT INTO TUESDAY AS AN 
UPPER LEVEL STORM SYSTEM MOVES ACROSS THE REGION. THIS WILL LEAD TO 
A CHANCE OF WINTER PRECIPITATION ACROSS PARTS OF OKLAHOMA AND 
WESTERN NORTH TEXAS. THE PRECIPITATION IS EXPECTED TO END FROM WEST 
TO EAST TUESDAY NIGHT. BRISK NORTH WINDS WILL ALSO ACCOMPANY THE 
COLDER AIR LEADING TO EVEN COLDER WIND CHILLS... WITH BELOW ZERO 
WIND CHILLS POSSIBLE TUESDAY NIGHT ACROSS A LARGE PORTION OF 
OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS.

AS FOR THE PRECIPITATION MONDAY NIGHT AND TUESDAY... THERE CONTINUES 
TO BE UNCERTAINTIES AT ANY GIVEN LOCATION AS TO THE PRECIPITATION 
TYPE... TIMING OF WHEN THE WINTER PRECIPITATION WILL BEGIN... AND 
HOW MUCH WINTER PRECIPITATION WILL OCCUR. SOME LOCATIONS ACROSS 
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS MAY RECEIVE ONE TO ALL OF 
THE TYPES OF RAIN... FREEZING RAIN... SLEET... AND SNOW. RESIDENTS 
SHOULD CONTINUE TO MONITOR THE LATEST FORECASTS FOR UPDATES AS NEW 
DATA IS RECEIVED.

IN THE MEAN TIME... PLEASANT WEATHER WILL OCCUR ACROSS THE REGION 
TODAY AND SATURDAY WITH TEMPERATURES WELL ABOVE SEASONAL NORMALS. 
THESE WARM TEMPERATURES AND THE DRY CONDITIONS WILL ELEVATE THE 
WILDFIRE POTENTIAL TODAY AND SATURDAY. THE WORST FIRE WEATHER 
CONDITIONS COULD BE SATURDAY AFTERNOON WHEN THERE IS THE POTENTIAL 
FOR STRONGER WINDS.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
604 PM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-291000- 
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
604 PM CST FRI JAN 28 2011

...BIG CHANGES ON THE WAY FOR PARTS OF OKLAHOMA AND NORTH TEXAS...

WINTER WEATHER WILL AFFECT OKLAHOMA AND NORTH TEXAS EARLY NEXT WEEK. 
MUCH COLDER TEMPERATURES ARE EXPECTED AS WELL AS THE CHANCE OF 
WINTER PRECIPITATION... ALTHOUGH THE TYPE AND AMOUNT OF WINTER 
PRECIPITATION IS STILL UNCERTAIN.

A COLD FRONT WILL MOVE INTO THE AREA LATE SATURDAY INTO SUNDAY. THIS 
WILL LEAD TO COOLER CONDITIONS SUNDAY WITH HIGH TEMPERATURES CLOSER 
TO NORMAL. MEANWHILE... A DISTURBANCE WILL MOVE EAST ACROSS TEXAS 
BRINGING A CHANCE OF LIGHT RAIN TO PARTS OF SOUTHERN AND CENTRAL 
OKLAHOMA AND NORTH TEXAS SATURDAY NIGHT AND SUNDAY. 

EVEN COOLER TEMPERATURES ARE EXPECTED MONDAY AS COOL AIR CONTINUES 
TO MOVE INTO THE REGION. LOW PRECIPITATION CHANCES WILL EXPAND NORTH 
AND WEST SUNDAY NIGHT AND MONDAY. MOST OF THE PRECIPITATION WILL 
FALL IN THE FORM OF LIGHT RAIN OR DRIZZLE. HOWEVER... LIGHT WINTER 
PRECIPITATION WILL BECOME POSSIBLE ACROSS PARTS OF NORTHERN AND 
MAYBE INTO CENTRAL OKLAHOMA.

THE BIGGEST CHANGES WILL OCCUR MONDAY NIGHT INTO TUESDAY. A MUCH 
COLDER ARCTIC AIRMASS WILL MOVE INTO THE REGION TUESDAY... WITH 
PRECIPITATION CHANCES INCREASING MONDAY NIGHT INTO TUESDAY AS AN 
UPPER LEVEL STORM SYSTEM MOVES ACROSS THE REGION. THIS WILL LEAD TO 
A CHANCE OF WINTER PRECIPITATION ACROSS PARTS OF OKLAHOMA AND 
WESTERN NORTH TEXAS. THE PRECIPITATION IS EXPECTED TO END FROM WEST 
TO EAST TUESDAY NIGHT. BRISK NORTH WINDS WILL ALSO ACCOMPANY THE 
COLDER AIR LEADING TO EVEN COLDER WIND CHILLS... WITH BELOW ZERO 
WIND CHILLS POSSIBLE TUESDAY NIGHT ACROSS A LARGE PORTION OF 
OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS.

AS FOR THE PRECIPITATION MONDAY NIGHT AND TUESDAY... THERE CONTINUES 
TO BE UNCERTAINTIES AT ANY GIVEN LOCATION AS TO THE PRECIPITATION 
TYPE... TIMING OF WHEN THE WINTER PRECIPITATION WILL BEGIN... AND 
HOW MUCH WINTER PRECIPITATION WILL OCCUR. SOME LOCATIONS ACROSS 
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS MAY RECEIVE ONE TO ALL OF 
THE TYPES OF RAIN... FREEZING RAIN... SLEET... AND SNOW. RESIDENTS 
SHOULD CONTINUE TO MONITOR THE LATEST FORECASTS FOR UPDATES AS NEW 
DATA IS RECEIVED.

IN THE MEAN TIME... PLEASANT WEATHER WILL OCCUR ACROSS THE REGION 
THROUGH SATURDAY WITH TEMPERATURES WELL ABOVE SEASONAL NORMALS. 
THESE WARM TEMPERATURES AND THE DRY CONDITIONS WILL ELEVATE THE 
WILDFIRE POTENTIAL ON SATURDAY WHEN THERE IS THE POTENTIAL FOR 
STRONGER WINDS.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
611 PM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-291000- 
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
611 PM CST FRI JAN 28 2011

...BIG CHANGES ON THE WAY FOR PARTS OF OKLAHOMA AND NORTH TEXAS...

WINTER WEATHER WILL AFFECT OKLAHOMA AND NORTH TEXAS EARLY NEXT WEEK. 
MUCH COLDER TEMPERATURES ARE EXPECTED AS WELL AS THE CHANCE OF 
WINTER PRECIPITATION... ALTHOUGH THE TYPE AND AMOUNT OF WINTER 
PRECIPITATION IS STILL UNCERTAIN.

A COLD FRONT WILL MOVE INTO THE AREA LATE SATURDAY INTO SUNDAY. THIS 
WILL LEAD TO COOLER CONDITIONS SUNDAY WITH HIGH TEMPERATURES CLOSER 
TO NORMAL. MEANWHILE... A DISTURBANCE WILL MOVE EAST ACROSS TEXAS 
BRINGING A CHANCE OF LIGHT RAIN TO PARTS OF SOUTHERN AND CENTRAL 
OKLAHOMA AND NORTH TEXAS SATURDAY NIGHT AND SUNDAY. 

EVEN COOLER TEMPERATURES ARE EXPECTED MONDAY AS COOL AIR CONTINUES 
TO MOVE INTO THE REGION. LOW PRECIPITATION CHANCES WILL EXPAND NORTH 
AND WEST SUNDAY NIGHT AND MONDAY. MOST OF THE PRECIPITATION WILL 
FALL IN THE FORM OF LIGHT RAIN OR DRIZZLE. HOWEVER... LIGHT WINTER 
PRECIPITATION WILL BECOME POSSIBLE ACROSS PARTS OF NORTHERN AND 
MAYBE INTO CENTRAL OKLAHOMA.

THE BIGGEST CHANGES WILL OCCUR MONDAY NIGHT INTO TUESDAY. A MUCH 
COLDER ARCTIC AIRMASS WILL MOVE INTO THE REGION TUESDAY... WITH 
PRECIPITATION CHANCES INCREASING MONDAY NIGHT INTO TUESDAY AS AN 
UPPER LEVEL STORM SYSTEM MOVES ACROSS THE REGION. THIS WILL LEAD TO 
A CHANCE OF WINTER PRECIPITATION ACROSS PARTS OF OKLAHOMA AND 
WESTERN NORTH TEXAS. THE PRECIPITATION IS EXPECTED TO END FROM WEST 
TO EAST TUESDAY NIGHT. BRISK NORTH WINDS WILL ALSO ACCOMPANY THE 
COLDER AIR LEADING TO EVEN COLDER WIND CHILLS... WITH BELOW ZERO 
WIND CHILLS POSSIBLE TUESDAY NIGHT ACROSS A LARGE PORTION OF 
OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS.

AS FOR THE PRECIPITATION MONDAY NIGHT AND TUESDAY... THERE CONTINUES 
TO BE UNCERTAINTIES AT ANY GIVEN LOCATION AS TO THE PRECIPITATION 
TYPE... TIMING OF WHEN THE WINTER PRECIPITATION WILL BEGIN... AND 
HOW MUCH WINTER PRECIPITATION WILL OCCUR. SOME LOCATIONS ACROSS 
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS MAY RECEIVE RAIN... 
FREEZING RAIN... SLEET...OR SNOW...OR A COMBINATION OF THESE. 
RESIDENTS SHOULD CONTINUE TO MONITOR THE LATEST FORECASTS FOR 
UPDATES AS NEW DATA IS RECEIVED.

IN THE MEAN TIME... PLEASANT WEATHER WILL OCCUR ACROSS THE REGION 
THROUGH SATURDAY WITH TEMPERATURES WELL ABOVE SEASONAL NORMALS. 
THESE WARM TEMPERATURES AND THE DRY CONDITIONS WILL ELEVATE THE 
WILDFIRE POTENTIAL ON SATURDAY WHEN THERE IS THE POTENTIAL FOR 
STRONGER WINDS.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
552 AM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-292300- 
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
552 AM CST SAT JAN 29 2011

...BIG CHANGES ON THE WAY EARLY NEXT WEEK...

FOLLOWING TWO VERY WARM DAYS...SUNDAY WILL BRING COLDER TEMPERATURES
ALONG WITH A CHANCE FOR RAIN ACROSS PARTS OF SOUTH CENTRAL
AND SOUTHEAST OKLAHOMA.  THE COLDER WEATHER WILL ARRIVE AS A STORM
SYSTEM MOVES FROM BAJA THEN EAST ACROSS TEXAS AND FAR SOUTHERN 
OKLAHOMA.  

A SECOND AND STRONGER STORM SYSTEM WILL MOVE ACROSS PARTS OF 
CALIFORNIA ON SUNDAY AND IS EXPECTED TO BE NEAR THE FOUR CORNERS 
REGION BY LATE MONDAY EVENING. MEANWHILE...VERY COLD AIR IN PLACE
ACROSS CANADA WILL MOVE SOUTH INTO THE NORTHERN UNITED STATES.
THIS AIR WILL REACH OKLAHOMA MONDAY NIGHT INTO TUESDAY.  MOST 
LOCATIONS WILL LIKELY SEE FALLING TEMPERATURES DURING THE
DAYTIME TUESDAY.  ALTHOUGH PRECIPITATION WILL BE WELCOME AS MANY
AREAS HAVE BEEN EXCEEDINGLY DRY...SOME OF IT WILL LIKELY FALL
IN THE FORM OF SNOW...SLEET AND FREEZING RAIN.  

AT THIS TIME...IT APPEARS THE GREATEST IMPACT FROM THIS SYSTEM
WILL OCCUR FROM MONDAY EVENING INTO THE DAYTIME HOURS TUESDAY.
IT IS STILL TOO EARLY TO PINPOINT EXACT AMOUNTS OF SNOW...SLEET
OR ICE ACCUMULATION...BUT ENOUGH MAY FALL TO IMPACT TRAVEL AND 
COMMERCE.  STRONG NORTHERLY WINDS ARE ALSO EXPECTED WHICH MAY
PRODUCE WINDS CHILL READINGS WELL BELOW ZERO BY TUESDAY EVENING.

NOW IS THE TIME TO PREPARE AND PLAN FOR A POSSIBLE WINTER STORM 
EARLY NEXT WEEK.  RESIDENTS SHOULD CONTINUE TO MONITOR THE LATEST 
FORECASTS FOR UPDATES AS NEW DATA ARRIVE.  

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
357 PM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-301100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
357 PM CST SAT JAN 29 2011

...WINTER WEATHER RETURNS NEXT WEEK...

FOLLOWING VERY WARM DAYS FRIDAY AND SATURDAY...COLDER TEMPERATURES 
ARE EXPECTED SUNDAY ALONG WITH A CHANCE FOR RAIN ACROSS PARTS OF 
SOUTHEAST OKLAHOMA. 

A STRONG STORM SYSTEM WILL MOVE ACROSS CALIFORNIA ON SUNDAY AND IS 
EXPECTED TO BE NEAR THE FOUR CORNERS REGION BY LATE MONDAY EVENING. 
MEANWHILE...VERY COLD AIR IN PLACE ACROSS CANADA WILL MOVE SOUTH 
INTO THE NORTHERN UNITED STATES. THIS AIR WILL REACH OKLAHOMA MONDAY 
NIGHT INTO TUESDAY.  MOST LOCATIONS WILL LIKELY SEE FALLING 
TEMPERATURES DURING THE DAYTIME TUESDAY.  ALTHOUGH PRECIPITATION 
WILL BE WELCOME AS MANY AREAS HAVE BEEN EXCEEDINGLY DRY...SOME OF IT 
WILL LIKELY FALL IN THE FORM OF SNOW...SLEET AND FREEZING RAIN.  

AT THIS TIME...IT APPEARS THE GREATEST IMPACT FROM THIS SYSTEM
WILL OCCUR FROM MONDAY EVENING INTO THE DAYTIME HOURS TUESDAY.
IT IS STILL TOO EARLY TO PINPOINT EXACT AMOUNTS OF SNOW...SLEET
OR ICE ACCUMULATION...BUT ENOUGH MAY FALL TO IMPACT TRAVEL AND 
COMMERCE.  STRONG NORTHERLY WINDS ARE ALSO EXPECTED WHICH MAY
PRODUCE WIND CHILL READINGS WELL BELOW ZERO BY TUESDAY EVENING.

NOW IS THE TIME TO PREPARE AND PLAN FOR A POSSIBLE WINTER STORM 
EARLY NEXT WEEK.  RESIDENTS SHOULD CONTINUE TO MONITOR THE LATEST 
FORECASTS FOR UPDATES AS NEW DATA ARRIVE.  

$$