Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >
Two tornadic supercells produced four tornadoes during the afternoon hours of May 8, 2003. These thunderstorms developed near and along a strong dryline which was located across central Oklahoma. One supercell produced three tornadoes that affected Moore, southern Oklahoma City, Midwest City, and Choctaw. A few locations in Moore and southeast Oklahoma City had also been hit by an F5 tornado that moved through the area on May 3, 1999. The General Motors Plant in southeast Oklahoma City sustained some of the most significant damage. Another supercell went on to produce a weak tornado near the town of Red Rock in Noble County, and an F3 tornado in Osage County in the NWS Tulsa forecast area.
This event was the second tornadic event of the day. Several tornadoes moved across south central Oklahoma during the early morning hours of May 8th. This event was also the first of two days in a row where the Oklahoma City Metropolitan area was affected by tornadoes. Several tornadoes, including an F3 tornado, hit the northern parts of the metro area on May 9, 2003. This event occurred during a very active severe weather period in the United States during the first half of May 2003. More than a dozen tornadoes struck the U.S. each day from May 3-11, 2003.
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The following two radar images are from the Oklahoma City/Twin Lakes (KTLX) WSR-88D radar. The date/time for these images was at 5:25 pm CDT 5/8/2003, or at about the same time the Oklahoma City tornado was producing damage on Tinker Air Force Base and at the General Motors plant. |
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| Oklahoma City/Twin Lakes (KTLX) Reflectivity at 5:25 PM CDT 5/08/2003 |
Oklahoma City/Twin Lakes (KTLX) Storm Relative Velocity at 5:25 PM CDT 5/08/2003 |
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| Approximate Damage Paths of the May 8, 2003 OKC Area Tornadoes Compared to the May 3, 1999 F5 Tornado |
Approximate Damage Paths of the May 8, 2003 OKC Area Tornadoes in and near Moore, Oklahoma |
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| Warning Coordination Meteorologist Rick Smith gives a live weather briefing regarding the developing severe weather situation at 2:35 PM CDT, 5/08/2003. This was the first time a live weather briefing was broadcast via all ten of NWS Norman's weather radio transmitters. Behind Rick former forecaster Kenneth James (left) and forecaster Bruce Thoren (right) are monitoring the severe weather using AWIPS workstations. | Visible Satellite Image at 5:25 pm CDT 5/8/2003 |
| Tornadoes by Intensity | ||||||
|---|---|---|---|---|---|---|
| F0 | F1 | F2 | F3 | F4 | F5 | Total |
| 3 | 0 | 0 | 1 | 1 | 0 | 5 |
| SPC ID # |
Date | Time (CST) |
Path Length (miles) |
Path Width (yards) |
F-Scale | Killed | Injured | County | Path |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 05/08/2003 | 1600-1601 | 0.2 | 30 | F0 | 0 | 0 | McClain | 3.5 NNW Newcastle |
| 2 | 05/08/2003 | 1604-1608 | 2.3 | 100 | F0 | 0 | 0 | Cleveland | OKC [NW of SW 149th and Penn - just SE of SW 134th and Western] |
| 3 | 05/08/2003 | 1610-1638 | 17 | 700 | F4 | 0 | 45 | Cleveland/ Oklahoma | Moore - OKC (SE) - Midwest City (SE) - Choctaw [~1/2 mile N of SW 134th and Santa Fe to 1/2 mile E of Reno and Henney] |
| 4 | 05/08/2003 | 1708-1710 | 0.8 | 50 | F0 | 0 | 0 | Noble | 0.75 W - 0.5 N Red Rock |
| 5 | 05/08/2003 | 1746-1856 | 45 | 880 | F3 | 0 | 0 | Osage | 1 NW Fairfax - 1 W Bowring |
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The following are severe weather reports received and issued as local storm reports (LSRs) by the NWS Norman staff related the May 8-9, 2003 OKC area tornadoes. These were the preliminary reports received by the NWS. For the final severe weather documentation, refer to the Storm Data links above.
NWUS54 KOUN 082147
LSROKC
LOCAL STORM REPORT...COMPILATION
NATIONAL WEATHER SERVICE NORMAN OK
THU MAY 08 2003
TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0440 PM MUSTANG OK .88 INCH HAIL
05/08/03 CANADIAN REPORTED BY HAM RADIO
SPOTTER
0455 PM OKLAHOMA CITY OK .88 INCH HAIL
05/08/03 OKLAHOMA REPORTED BY SPOTTER AT
NWTH 10TH AND PORTLAND
AVE.
0455 PM OKLAHOMA CITY OK .75 INCH HAIL
05/08/03 OKLAHOMA REPORTED BY OBSERVER AT
WILL ROGERS WORLD AIRPORT
IN SOUTHWEST OKC
0459 PM OKLAHOMA CITY OK .75 INCH HAIL
05/08/03 OKLAHOMA REPORTED BY OKLAHOMA CITY
ASOS.
0510 PM MOORE OK TORNADO
05/08/03 CLEVELAND TORNADO ON GROUND ON SOUTH
SIDE OF MOORE. HWY 37 & WESTERN
0517 PM OKLAHOMA CITY OK TORNADO
05/08/03 OKLAHOMA TORNADO ON GROUND AT HWY 77
& 240, REPORTED BY HAM
RADIO SPOTTER
0522 PM 3 S DEL CITY OK TORNADO
05/08/03 OKLAHOMA DAMAGE REPORTED AT GENERAL
MOTORS PLANT. REPORTED BY
SPOTTER
0528 PM OKLAHOMA CITY OK .75 INCH HAIL
05/08/03 OKLAHOMA 44 & CENTER REPORTED BY
SPOTTER
0529 PM OKLAHOMA OK WIND DAMAGE
05/08/03 OKLAHOMA 240 WESTBOUND JUST WEST OF
AIR DEPOT. POWER LINES
DOWN. REPORTED BY SPOTTER
0530 PM MIDWEST CITY OK TORNADO ON GROUND
05/08/03 OKLAHOMA MULTIPLE HOUSES HEAVILY DAMAGED,
POWER LINES DOWNED. DAMAGE
REPORTED BY NWS EL TECH.
0539 PM CHOCTAW OK TORNADO
05/08/03 OKLAHOMA REPORTED BY SPOTTER
0545 PM MCCLOUD OK TORNADO
05/08/03 POTTAWATOMIE MULTIPLE VORTEX TORNADO ON
GROUND. REPORTED BY HAM
RADIO SPOTTER
0550 PM 4 S HARRAH OK TORNADO
05/08/03 OKLAHOMA TORNADO ON GROUND.
REPORTED BY HAM RADIO
SPOTTER
0555 PM PONCA CITY OK 1.00 INCH HAIL
05/08/03 KAY REPORTED BY PUBLIC.
0600 PM 1 N JACKTOWN OK TORNADO
05/08/03 LINCOLN TORNADO ON GROUND.
REPORTED BY HAM RADIO
SPOTTER
0600 PM PONCA CITY OK 1.25 INCH HAIL
05/08/03 KAY REPORTED BY KAY COUNTY EM.
0610 PM RED ROCK OK TORNADO
05/08/03 NOBLE TORNADO ON GROUND.
REPORTED BY OHP
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METAR observations May 8, 2003 for Will Rogers Airport (OKC) and Tinker AFB (TIK) are available below.
METAR KTIK 082355Z 16014KT 5SM HZ BKN180 27/23 A2959 RMK WND DATA ESTMD
SLP010 60015 8/070 9/070 54000 WR//
METAR KTIK 082255Z 13007KT 050V230 5SM HZ FEW025CB BKN130 BKN300 24/22
A2960 RMK PK WND 06058/25 WND DATA ESTMD PRESFR SLP014 8/363
9/244 WR//
SPECI KTIK 082234Z 36012G30KT 6SM -TSRA BR SCT008CB BKN130 BKN300 21/19
A2961 RMK TS ALQDS MOV NE OCNL LTGICCG PRES UNSTDY WR//
SPECI KTIK 082227Z 19005G58KT 1SM +FC TSRA BR BKN008CB OVC150 22/20
A2964 RMK TORNADO 3SE MOV NE TS 2E MOV NE OCNL LTGICCG
WR//
SPECI KTIK 082220Z 03009KT 5/+FC TSRA BKN028CB OVC150 25/23 A2959 RMK
TORNADO 5SW MOV NE TS OHD AND SW MOV NE FRQ LTGICCG
SPECI KTIK 082211Z 11008KT 100V170 4SM -TSRA GR BKN028CB OVC130 25/24
A2958 RMK TS OHD MOV NE FRQ LTGICCG GR 1 WND DATA ESTMD
WR//
METAR KTIK 082155Z COR 17015KT 4SM -TSRA HZ BKN028CB OVC130 26/23 A2958
RMK OCNL LTGICCG TS 8W AND 12SW MOV NE WND DATA ESTMD SLP007
8/37/ 9/58/ COR 2201 WR//
METAR KTIK 082155Z 17015KT 4SM -TSRA HZ BKN028CB OVC130 26/23 A2958 RMK
OCNL LTGICCG TS 8W AND 12SW MOV NE WND DATA ESTMD SLP007
8/37/ 9/58/
SPECI KTIK 082147Z 16014KT 4SM -TSRA HZ SCT028CB BKN130 OVC160 26/22
A2958 RMK OCNL LTGIC TS 12SW NOV NE WND DATA ESTMD WR//
METAR KTIK 082055Z COR 17016G22KT 4SM HZ SCT028 BKN160 28/22 A2959 RMK
WND DATA ESTMD SLP010 8/170 9/370 58018 COR 2102
METAR KOKC 082352Z 15016KT 5SM HZ FEW160 OVC220 28/23 A2957 RMK AO2
SLP997 6//// T02780233 10300 20200 56004 $
METAR KOKC 082252Z 14016KT 6SM HZ SCT035 OVC240 26/23 A2957 RMK AO2 PK
WND 29031/2201 TSE37RAE25GSE2158GRB2158E10 SLP999
HAILSTONES>3/4 TSE MOV NE P0075 T02610233
SPECI KOKC 082243Z 12011KT 6SM HZ SCT006 BKN024 BKN035CB OVC200 26/23
A2958 RMK AO2 PK WND 29031/2201 TSE37RAE25GSE2158GRB2158E10
HAILSTONES>3/4 TSE MOV NE P0075
SPECI KOKC 082222Z VRB06G17KT 3SM R35R/2800VP6000FT -TSRA BR SCT006
BKN024 BKN035CB OVC200 22/21 A2959 RMK AO2 PK WND 29031/2201
GSE2158GRB2158E10 HAILSTONES>3/4 FRQ LTGICCCCG NE-SW TS NE-SW
MOV NE P0075
SPECI KOKC 082216Z 08008G21KT 010V140 3SM R35R/1200VP6000FT -TSRA BR
BKN006 BKN022 OVC031CB 25/21 A2960 RMK AO2 PK WND 29031/2201
GSE2158GRB2158E10 HAILSTONES>3/4 FRQ LTGICCCCG SE-SW TS SE-SW
MOV NE P0075
SPECI KOKC 082211Z 14011G21KT 120V180 1/2SM R35R/1200VP6000FT +TSRA BR
BKN019 BKN029 BKN045CB OVC150 22/19 A2959 RMK AO2 PK WND
29031/2201 GSE2158GRB2158E10 HAILSTONES>3/4 FRQ LTGICCCCG
SE-SW TS SE-SW MOV NE P0075
SPECI KOKC 082159Z 30016G28KT 1/2SM R35R/P6000FT +TSGRRA BR BKN019
BKN029 BKN045CB OVC150 26/23 A2957 RMK AO2 PK WND 29028/2159
GSE58GRB58 HAILSTONES>3/4 CONS LTGICCCCG SW TS SW MOV NE
P0010
METAR KOKC 082152Z 15014KT 2SM R35R/6000VP6000FT TSGSRA BR SCT022 BKN029
BKN045CB OVC190 26/23 A2957 RMK AO2 PK WND 15026/2056
TSB30RAB31GSB52 SLP996 CONS LTGICCC S-W TS SW-W MOV NE P0009
T02560228
SPECI KOKC 082131Z 16018KT 5SM -TSRA HZ SCT037CB SCT140 OVC190 27/22
A2957 RMK AO2 PK WND 15026/2056 TSB30RAB31 OCNL LTGIC SW-NW
TS SW-NW MOV NE P0000
METAR KOKC 082052Z 16019G26KT 5SM HZ FEW034 BKN140 OVC190 29/22 A2958
RMK AO2 PK WND 18027/2032 SLP001 T02890222 58016
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The following images are approximate track maps for tornadoes that occurred in the Oklahoma City area on May 8, 2003. Select the image to view a higher resolution image. |
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| Approximate Path of the May 8, 2003 Moore-South OKC Area Tornado |
Approximate Damage Paths of the May 8, 2003 OKC Area Tornadoes in and near Moore, Oklahoma |
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| Approximate Path of the May 8, 2003 OKC Area Tornado compared to the May 3, 1999 F5 tornado |
Composite Damage Track Map for the May 8-9, 2003 Central Oklahoma Tornadoes |
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| 4-panel Reflectivity | 4-panel Storm Relative Velocity |
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| 5:00 pm CDT | |
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| 6:00 pm CDT | |
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| Regional View of Visible Satellite Images on May 8, 2003 | |
 3:45 PM CDT |
 4:15 PM CDT |
 4:25 PM CDT |
 4:32 PM CDT |
 4:40 PM CDT |
 4:45 PM CDT |
 4:55 PM CDT |
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 6:15 PM CDT |
 6:25 PM CDT |
 6:32 PM CDT |
 6:40 PM CDT |
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 7:15 PM CDT |
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| Local View of Visible Satellite Images on May 9, 2003 | |
 5:02 PM CDT |
 5:10 PM CDT |
 5:15 PM CDT |
5:25 PM CDT |
 5:32 PM CDT |
 5:40 PM CDT |
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 5:55 PM CDT |
 6:03 PM CDT |
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| Photo of a Supercell Thunderstorm in Central Oklahoma on May 8, 2003 | |
| This photo of a supercell thunderstorm was taken by the NWS Norman staff at 3:44 pm CDT on 5/08/2003 as the storm was approaching the OKC metro area. The view in the photo is looking to the west-northwest from the NWS Norman forecast office (then located near the Max Westheimer Airport). The supercell went on to produce 3 tornadoes between 4:00 pm and 4:38 pm CDT on 5/08/2003. | |
 Photo #1 |
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| Photos of the Tornado #1 in McCalin County near Newcastle, OK Photos © Brad Bartell |
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| These photos were taken by Brad Bartell one quarter mile north of Oklahoma State Highway 37, and about 1 mile west of I-44 (~3 miles northwest of Newcastle, OK at 5:00 -5:01 p.m. CDT on May 8, 2003. The tornado circulation lasted for about 20 seconds before dissipating. | |
 Photo #1 |
 Photo #2 |
| Photo of Tornado #2 in Southwest Oklahoma City Photos © Melissa Moon |
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| This photo was taken by Melissa Moon near the intersection of SW 134th Street (OK State Highway 37) and Western Avenue in southwest Oklahoma City. View in the photo is looking to the south. | |
 Photo #1 |
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| Photo of Tornado #3 in Moore, OK Photos © Chris Anders |
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| This photo was taken by storm spotter Chris Anders near the intersection of N 27th Street and Eastern Avenue in Moore, OK. View in the photo is looking to the southwest. | |
 Photo #1 |
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| Photos of Tornado #3 in Moore, OK Photos © Donna Hale-Hicks |
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| These photos were taken by Donna Hale-Hicks near the intersection of Main Street and Broadway Street in Moore, OK. View is looking to the north. | |
 Photo #1 |
 Photo #2 |
| Photos of the Tornado #3 in Southeast Oklahoma City Photos © Dan Olson |
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| The following series of photos were taken by Dan Olson, the General Manager at ARINC located in southeast Oklahoma City. The tornado was viewed first to the south, then southeast and then east of the ARINC office as it moved through the area.The tornado can be seen approaching and then hitting the GM motor plant in photos 9-11. | |
 Photo #1 |
 Photo #2 |
 Photo #3 |
 Photo #4 |
 Photo #5 |
 Photo #6 |
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 Photo #11 |
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 Photo #13 |
 Photo #14 |
| Photos of Tornado #3 in Choctaw, OK Photos © John Hammond |
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| These photos were taken by John Hammond in the Choctaw, OK area near the intersection of SE 15th Street and Choctaw Road. View is looking to the north. | |
 Photo #1 |
 Photo #2 |
| Photos of Tornado #4 near Red Rock, OK Photos © Steve Shiever |
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| These photos were taken by Steve Shiever at the Frontier School in Red Rock, OK. View is looking to the west. | |
 Photo #1 |
 Photo #2 |
 Photo #3 |
 Photo #4 |
 Looking west at F2 damage along SE 89th Terrace west of Bryant Avenue in Oklahoma City, Oklahoma. |
 Looking east at F1/F2 damage along SE 89th Terrace at the intersection of SE 89th Terrace and Button Road west of Bryant Avenue in Oklahoma City, Oklahoma. Note: The garage door is bowed out from house on the right (south) side of the street. The homes on the left (north) side of the street with south-facing garages suffered more significant damage. |
 Looking northeast at F2 damage to duplex at the intersection of SE 89th Terrace and Button Road west of Bryant Avenue in Oklahoma City, Oklahoma. Note: This duplex was rebuilt after being destroyed by the 5/3/1999 tornado. |
 Looking north at F2 damage along SE 89th Terrace west of Bryant Avenue in Oklahoma City, Oklahoma. Note: Small items on the shelf in this house were undisturbed. |
 Looking northeast at F1 damage on the southeast corner of the intersection of SE 89th Terrace and Button Road west of Bryant Avenue in Oklahoma City, Oklahoma. Note: A large metal structure, which left an impact mark in lawn parallel to road and then impacted the side of this house, is apparently a device used to reinforce below-ground ditches. The origin of this structure is unknown. |
 Looking north-northeast at F2 damage in cul-de-sac near the intersection of NE 21st Street and Nail parkway in Highland Park in Moore, Oklahoma. |
 Looking south at F2/F3 damage along Moore Avenue (service road) west of I-35 Highway in Moore, Oklahoma. |
 Looking southwest at F3 damage near the intersection of N 17th Street and Moore Avenue (service road) west of I-35 Highway in Moore, Oklahoma. Note: This structure was a strip office building. No walls were left standing, but the building was poorly constructed. |
 Looking northeast at F2 damage along Sunrise Avenue just north of 12th Street in Moore, Oklahoma. |
 Looking east-northeast at F1/F2 damage along Sunrise Avenue just north of 12th Street in Moore, Oklahoma. Note: Vehicle was tossed into the house by the tornado. |
 Looking east-northeast at F3 damage on the northeast corner of intersection of 12th Street and City Avenue in Moore, Oklahoma. |
 Looking southwest at F3 damage from the intersection of 12th Street and City Avenue in Moore, Oklahoma. |
 Looking west-northwest at F2/F3 damage along the north side of 12th Street near the intersection of 12th Street and City Avenue in Moore, Oklahoma. |
 Looking northeast at High F2/Low F3 damage on City Avenue just north 12th Street in Moore, Oklahoma. |
 Looking west at F3 damage on City Avenue just north 12th Street in Moore, Oklahoma. |
 Looking south at tornado damage on the southwest corner of the intersection of N 5th Street and Markwell Avenue in Moore, Oklahoma. |
 Looking west at F3 damage just north of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. Note: A vehicle is upside down on top of debris (left), and another vehicle is in the field (just right of center). Motel 6 is just north of this location. |
 Looking northeast at F3 damage to the Motel 6 structure just northwest of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. |
 Looking northeast at F3 damage to a daycare center just northwest of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. Motel 6 is to the left of the daycare center. |
 Looking north-northeast at F3 damage to the First Christian Church just northwest of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. |
 Looking north-northwest at tornado damage just north of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. Note: First Christian Church van is located in the backyard of home on Sunrise Avenue and was apparently located in a parking lot just to the front right of the photographer. |
 Looking west-northwest at First Christian Church van flipped over and in the backyard of house on Sunrise Avenue just northwest of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. Church van was parked originally in a parking lot behind the photographer. |
 Looking west-northwest at First Christian Church van flipped over and in the backyard of house on Sunrise Avenue just northwest of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. Church van was parked originally in a parking lot behind the photographer. |
 Looking north-northeast at F3 damage to the First Christian Church just northwest of the intersection of 12th Street and I-35 Highway in Moore, Oklahoma. Motel 6 is in the background of the photo. |
FXUS64 KOUN 080935 AFDOKC AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 435 AM CDT THU MAY 8 2003 BUSY NIGHT HERE WITH PERSISTENT TORNADIC SUPERCELL MOVING ACROSS SOUTHERN ZONES THIS MORNING. PRODUCTS WILL LIKELY BE DELAYED... BUT SHOULD BE OUT BY AROUND 445 AM. AS UPPER WAVE TRACKS NORTHEAST INTO CENTRAL PLAINS... THE SURFACE LOW WILL BE DRAGGED NORTHEAST AND PULL DRYLINE EAST. THE WARM FRONT IS CURRENTLY OVER NORTHERN OKLAHOMA AND CONVECTION IS NOT WIDESPREAD ENOUGH TO HALT ITS ADVANCE. ETA MODEL FORECAST SOUNDINGS SHOW AN UNCAPPED ATMOSPHERE DEVELOPING EVEN BY 18Z AHEAD OF THE DRYLINE SO EXPECT THUNDERSTORMS TO REDEVELOP THIS AFTERNOON. THERE MAY BE A BREAK IN THE ACTION ON THE BACKSIDE OF THE WAVE AFTER THIS EVENING. DO NOT THINK DRYLINE WILL ADVANCE QUITE AS FAR AS MODELS ADVERTISE TOMORROW WITHOUT A STRONG UPPER SYSTEM MOVING THROUGH... SO WILL KEEP MOISTURE AND HIGHER POPS FARTHER WEST. WILL KEEP CHANCE OF THUNDER THROUGH MOST AREAS THROUGH SATURDAY UNTIL THE MAIN UPPER WAVE MOVES THROUGH THE AREA SATURDAY NIGHT. THEN WE MAY FINALLY SEE A BRIEF BREAK IN THE THUNDERSTORM CHANCES. FCSTID = 26 OKC 88 62 87 67 / 30 20 20 30 HBR 89 57 89 64 / 20 20 10 20 SPS 93 64 92 66 / 20 20 20 20 GAG 86 51 86 57 / 10 10 10 10 PNC 85 61 85 66 / 40 30 20 30 DUA 89 72 88 72 / 40 30 20 30 .OUN... OK...NONE. TX...NONE. FPUS74 KOUN 081121 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 620 AM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-081200- ALFALFA OK-ARCHER TX-ATOKA OK-BAYLOR TX-BECKHAM OK-BLAINE OK- BRYAN OK-CADDO OK-CANADIAN OK-CARTER OK-CLAY TX-CLEVELAND OK-COAL OK- COMANCHE OK-COTTON OK-CUSTER OK-DEWEY OK-ELLIS OK-FOARD TX- GARFIELD OK-GARVIN OK-GRADY OK-GRANT OK-GREER OK-HARDEMAN TX- HARMON OK-HARPER OK-HUGHES OK-JACKSON OK-JEFFERSON OK-JOHNSTON OK- KAY OK-KINGFISHER OK-KIOWA OK-KNOX TX-LINCOLN OK-LOGAN OK-LOVE OK- MAJOR OK-MARSHALL OK-MCCLAIN OK-MURRAY OK-NOBLE OK-OKLAHOMA OK- PAYNE OK-PONTOTOC OK-POTTAWATOMIE OK-ROGER MILLS OK-SEMINOLE OK- STEPHENS OK-TILLMAN OK-WASHITA OK-WICHITA TX-WILBARGER TX-WOODS OK- WOODWARD OK- INCLUDING THE CITIES OF...ADA OK...ALTUS OK...ARDMORE OK... CHICKASHA OK...CLINTON/WEATHERFORD OK...DUNCAN OK...DURANT OK... EL RENO OK...ELK CITY OK...ENID OK...GUTHRIE OK...HOBART OK... LAWTON OK...NORMAN OK...OKLAHOMA CITY OK...PONCA CITY OK... SHAWNEE OK...STILLWATER OK...VERNON TX...WICHITA FALLS TX... WOODWARD OK 620 AM CDT THU MAY 8 2003 .NOW... SHORTLY BEFORE SUNRISE...A WARM FRONT CONTINUED TO BECOME BETTER DEFINED ACROSS FAR NORTHERN OKLAHOMA. SOUTHEASTERLY SURFACE WINDS PREVAILED IN ALL AREAS SOUTH OF THE FRONT...WITH TEMPERATURES AND DEWPOINTS NEAR OR ABOVE 70 IN MOST AREAS. THUNDERSTORMS...SOME SEVERE...HAD ALL MOVED INTO EAST CENTRAL OKLAHOMA. ADDITIONAL THUNDERSTORM DEVELOPMENT THIS MORNING IS UNLIKELY IN THE NORMAN COUNTY WARNING AREA AS THE WARM FRONT LIFTS NORTH INTO KANSAS. THE SEVERE THUNDERSTORM WATCH HAS BEEN LIFTED FOR EASTERN PARTS OF THE AREA. THE DRY LINE WAS LOCATED OVER WEST TEXAS EARLY THIS MORNING...AND WILL MOVE EAST INTO WESTERN OKLAHOMA BY MIDDAY. THE DRY LINE WILL BECOME A FOCUS FOR POTENTIAL SEVERE THUNDERSTORM REDEVELOPMENT AGAIN BY LATE THIS AFTERNOON...MOST LIKELY SOMEWHERE ACROSS WESTERN OR CENTRAL OKLAHOMA...AND POSSIBLY PARTS OF WESTERN NORTH TEXAS. MORE DETAILS ON THE SEVERE POTENTIAL LATE TODAY WILL BE CONTAINED IN THE HAZARDOUS WEATHER OUTLOOK TO BE ISSUED AROUND 7 AM. $$ 24 FLUS44 KOUN 081211 HWOOKC OKZ004>048-050>052-TXZ083>090-081700- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORMAN OK 700 AM CDT THU MAY 8 2003 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 RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS. LOCATION... THE SLIGHT RISK AREA IS EAST OF A LINE FROM MEDFORD...TO BINGER...TO GRANDFIELD... TO SEYMOUR TEXAS. TIMING... THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE FROM MID AFTERNOON THROUGH LATE TONIGHT. RECOMMENDED ACTIONS... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS FROM AROUND 3 PM THROUGH THIS EVENING. SEVERE WEATHER OPERATIONS COULD CONTINUE PAST MIDNIGHT IN PARTS OF CENTRAL AND EASTERN OKLAHOMA. DISCUSSION... EARLY THIS MORNING A WARM FRONT WAS LIFTING NORTH ACROSS EXTREME NORTHERN OKLAHOMA. THE DRY LINE WAS LOCATED OVER WEST TEXAS... FROM THE CENTRAL OKLAHOMA PANHANDLE SOUTH TO JUST EAST OF AMARILLO AND LUBBOCK. A MODERATELY STRONG UPPER LEVEL DISTURBANCE WAS SWINGING EAST FROM THE FOUR CORNERS AREA TOWARD THE CENTRAL PLAINS. THE WARM FRONT WILL LIFT NORTH INTO KANSAS TODAY...ALLOWING WARM MOIST AND UNSTABLE AIR TO OVERSPREAD THE ENTIRE AREA. AS THE UPPER DISTURBANCE APPROACHES...THE DRY LINE WILL BEGIN MOVING EAST AND SHOULD MOVE INTO FAR WESTERN OKLAHOMA BY NOON. IT CURRENTLY IS EXPECTED TO REACH THE WESTERN EDGE OF THE SLIGHT RISK AREA AROUND MID AFTERNOON. THE AIR AHEAD OF THE DRY LINE WILL DESTABILIZE FURTHER THROUGHOUT THE DAY IN RESPONSE TO DAYTIME HEATING OF THE LOW LEVELS. A CAP WILL BE PRESENT...WHICH WILL LIKELY DELAY THUNDERSTORM DEVELOPMENT UNTIL MID AFTERNOON AT THE EARLIEST. BY THAT TIME...EXTREMELY UNSTABLE CONDITIONS WILL EXIST ALONG AND AHEAD OF THE DRY LINE...WITH CAPE VALUES LIKELY TO EXCEED 3000 OVER MUCH OF CENTRAL AND EASTERN OKLAHOMA. THUNDERSTORMS ARE EXPECTED TO DEVELOP INITIALLY ALONG...AND POSSIBLY AHEAD OF...THE DRY LINE AROUND 3 OR 4 PM AS THE UPPER DISTURBANCE ARRIVES TO PROVIDE MID-LEVEL LIFT. RAPID DEVELOPMENT...AND STRENGTHENING TO SEVERE LEVELS...IS LIKELY DUE TO THE EXPECTED HIGH INSTABILITY AND THE CONTINUED PRESENCE OF STRONG VERTICAL WIND SHEAR OVER THE AREA. A FEW STORMS MAY EVOLVE INTO SUPERCELLS...WITH AN ATTENDANT RISK OF VERY LARGE HAIL ALONG WITH A FEW TORNADOES. SEVERE WEATHER POTENTIAL MAY CONTINUE WELL INTO THE EVENING NEAR AND EAST OF THE DRY LINE...WHICH IS EXPECTED TO SET UP NEAR THE I-44 CORRIDOR THIS EVENING. IF THE DRY LINE MOVES FASTER OR SLOWER THAN CURRENTLY EXPECTED...THE EDGE OF THE RISK AREA MAY HAVE TO BE ADJUSTED ACCORDINGLY. BUT IN ANY CASE...THE RISK OF SEVERE WEATHER IN ANY GIVEN AREA WILL END ONCE SURFACE WINDS TURN TO THE SOUTHWEST AND DEWPOINTS FALL OFF. PARTS OF THE SLIGHT RISK AREA...MOST IN NORTH CENTRAL AND POSSIBLY CENTRAL OKLAHOMA....COULD BE UPGRADED IN LATER OUTLOOKS. PROBABILITY TABLE... VALID THROUGH 700 AM CDT FRIDAY MAY 9. PROBABILITY OF THUNDERSTORMS OCCURRING IN THE NWS NORMAN COUNTY WARNING AREA...70 PERCENT. PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...90 PERCENT. OTHER HAZARDOUS WEATHER... ASIDE FROM THE SEVERE WEATHER DANGER...NO OTHER HAZARDOUS WEATHER IS EXPECTED THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... THUNDERSTORM OUTLOOK... THE GREATEST SEVERE WEATHER POTENTIAL MAY SHIFT NORTH OF THE AREA ON FRIDAY...BUT THERE WILL BE SOME CHANCE OF SEVERE WEATHER AGAIN AT LEAST ACROSS NORTHERN OKLAHOMA. A RISK OF SEVERE WEATHER WILL CONTINUE IN EASTERN PARTS OF THE AREA ON SATURDAY. THUNDERSTORM CHANCES WILL RETURN TO THE AREA MONDAY THROUGH WEDNESDAY. OTHER HAZARDOUS WEATHER... NONE IS EXPECTED. THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON TODAY. $$ 24 FXUS64 KOUN 081537 AFDOKC AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 1035 AM CDT THU MAY 8 2003 IN GENERAL... THINGS ARE GOING AS PLANNED. WE MAY NEED TO MAKE SOME ADJUSTMENTS TO WIND SPEEDS FOR THIS AFTERNOON IF MODEL FORECASTS TURN OUT TO BE CORRECT. THIS IS MAINLY A CONCERN IN NORTHWEST OKLAHOMA... WHERE SPEEDS MAY TURN OUT TO BE STRONGER THAN CURRENTLY FORECAST. SO FAR... PROFILERS SUGGEST THAT SPEEDS WILL NOT GET QUITE THAT STRONG. SIMILARLY... IN THAT SAME AREA TEMPERATURES ARE RUNNING A LITTLE WARMER THAN THE GOING FORECAST. HOWEVER... SOMEWHAT COOLER AIR UPSTREAM SHOULD BRING THE ACTUAL READINGS AND THE FORECAST BACK TOGETHER WITHIN AN HOUR OR TWO. WILL WATCH TRENDS AND MAKE ADJUSTMENTS AS NEEDED. FCSTID = 23 = CMS -------------------------------------------------------------------- 435 AM CDT THU MAY 8 2003 BUSY NIGHT HERE WITH PERSISTENT TORNADIC SUPERCELL MOVING ACROSS SOUTHERN ZONES THIS MORNING. PRODUCTS WILL LIKELY BE DELAYED... BUT SHOULD BE OUT BY AROUND 445 AM. AS UPPER WAVE TRACKS NORTHEAST INTO CENTRAL PLAINS... THE SURFACE LOW WILL BE DRAGGED NORTHEAST AND PULL DRYLINE EAST. THE WARM FRONT IS CURRENTLY OVER NORTHERN OKLAHOMA AND CONVECTION IS NOT WIDESPREAD ENOUGH TO HALT ITS ADVANCE. ETA MODEL FORECAST SOUNDINGS SHOW AN UNCAPPED ATMOSPHERE DEVELOPING EVEN BY 18Z AHEAD OF THE DRYLINE SO EXPECT THUNDERSTORMS TO REDEVELOP THIS AFTERNOON. THERE MAY BE A BREAK IN THE ACTION ON THE BACKSIDE OF THE WAVE AFTER THIS EVENING. DO NOT THINK DRYLINE WILL ADVANCE QUITE AS FAR AS MODELS ADVERTISE TOMORROW WITHOUT A STRONG UPPER SYSTEM MOVING THROUGH... SO WILL KEEP MOISTURE AND HIGHER POPS FARTHER WEST. WILL KEEP CHANCE OF THUNDER THROUGH MOST AREAS THROUGH SATURDAY UNTIL THE MAIN UPPER WAVE MOVES THROUGH THE AREA SATURDAY NIGHT. THEN WE MAY FINALLY SEE A BRIEF BREAK IN THE THUNDERSTORM CHANCES. FCSTID = 26 OKC 88 62 87 67 / 30 20 20 30 HBR 89 57 89 64 / 20 20 10 20 SPS 93 64 92 66 / 20 20 20 20 GAG 86 51 86 57 / 10 10 10 10 PNC 85 61 85 66 / 40 30 20 30 DUA 89 72 88 72 / 40 30 20 30 .OUN... OK...NONE. TX...NONE. FPUS74 KOUN 081648 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 1135 AM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-081730- ALFALFA OK-ARCHER TX-ATOKA OK-BAYLOR TX-BECKHAM OK-BLAINE OK- BRYAN OK-CADDO OK-CANADIAN OK-CARTER OK-CLAY TX-CLEVELAND OK-COAL OK- COMANCHE OK-COTTON OK-CUSTER OK-DEWEY OK-ELLIS OK-FOARD TX- GARFIELD OK-GARVIN OK-GRADY OK-GRANT OK-GREER OK-HARDEMAN TX- HARMON OK-HARPER OK-HUGHES OK-JACKSON OK-JEFFERSON OK-JOHNSTON OK- KAY OK-KINGFISHER OK-KIOWA OK-KNOX TX-LINCOLN OK-LOGAN OK-LOVE OK- MAJOR OK-MARSHALL OK-MCCLAIN OK-MURRAY OK-NOBLE OK-OKLAHOMA OK- PAYNE OK-PONTOTOC OK-POTTAWATOMIE OK-ROGER MILLS OK-SEMINOLE OK- STEPHENS OK-TILLMAN OK-WASHITA OK-WICHITA TX-WILBARGER TX-WOODS OK- WOODWARD OK- INCLUDING THE CITIES OF...ADA OK...ALTUS OK...ARDMORE OK... CHICKASHA OK...CLINTON/WEATHERFORD OK...DUNCAN OK...DURANT OK... EL RENO OK...ELK CITY OK...ENID OK...GUTHRIE OK...HOBART OK... LAWTON OK...NORMAN OK...OKLAHOMA CITY OK...PONCA CITY OK... SHAWNEE OK...STILLWATER OK...VERNON TX...WICHITA FALLS TX... WOODWARD OK 1135 AM CDT THU MAY 8 2003 .NOW... AT 1130 AM... A DRYLINE ACROSS NORTHWEST OKLAHOMA INTO THE SOUTHERN TEXAS PANHANDLE EXTENDED FROM NEAR FREEDOM... TO CHEYENNE... TO JUST WEST OF CHILDRESS. TO THE EAST OF THE DRYLINE... VERY UNSTABLE AIR WAS LOCATED ACROSS MUCH OF WESTERN AND CENTRAL OKLAHOMA... AND THE WESTERN PART OF NORTH TEXAS. ALTHOUGH LOW CLOUDS PERSISTED ACROSS CENTRAL OKLAHOMA... SKIES WERE CLEARING OVER WESTERN OKLAHOMA AND NORTH TEXAS... ALLOWING TEMPERATURES TO WARM INTO THE MIDDLE 80S. BY MID AFTERNOON... THE DRYLINE IS EXPECTED TO MOVE TO NEAR A CHEROKEE... TO FREDERICK... TO JUST WEST OF WICHITA FALLS LINE. ALTHOUGH WARM TEMPERATURES ALOFT WILL TEND TO SUPPRESS THUNDERSTORM DEVELOPMENT THROUGH EARLY AFTERNOON... INCREASING CONVERGENCE ALONG THE DRYLINE AND ADDITIONAL HEATING SHOULD ERODE THE CAPPING INVERSION SUFFICIENTLY FOR THUNDERSTORMS TO DEVELOP. THUS SCATTERED THUNDERSTORMS ARE EXPECTED TO FORM ALONG AND A LITTLE AHEAD OF THE DRYLINE... MAINLY FROM MID AFTERNOON INTO THE EVENING HOURS. DUE TO THE HIGH INSTABILITY ACROSS THE AREA... ONCE STORMS FORM... THEY WILL QUICKLY BECOME SEVERE. MEANWHILE... STRONG NORTHWEST WINDS ARE EXPECTED TO DEVELOP BEHIND THE DRYLINE IN NORTHWEST OKLAHOMA LATER THIS AFTERNOON. $$ CJS FLUS44 KOUN 081701 HWOOKC OKZ004>048-050>052-TXZ083>090-091200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORMAN OK 1200 PM CDT THU MAY 8 2003 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 MODERATE RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS. LOCATION... THE MODERATE RISK AREA IS EAST OF A LINE FROM BLACKWELL TO OKLAHOMA CITY TO HENRIETTA TEXAS. TO THE WEST OF THE MODERATE RISK... A SLIGHT RISK EXISTS EAST OF A LINE FROM CHEROKEE TO LAWTON TO SEYMOUR TEXAS. TIMING... THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE FROM THIS AFTERNOON THROUGH EARLY FRIDAY MORNING. IN THE NORTHERN PART OF THE RISK AREAS... THE MAIN RISK WILL BEGIN AROUND 3 PM AND EXTEND INTO THE NIGHTTIME HOURS. FARTHER SOUTH... STORMS ARE EXPECTED TO BEGIN AROUND 5 PM AND ALSO EXTEND WELL INTO THE NIGHT. IMPACTS... A FEW OF THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING HAIL TO AROUND BASEBALL SIZE. HAIL OF THIS SIZE CAN CAUSE EXTENSIVE DAMAGE TO ROOFS AND VEHICLES. WIND GUSTS TO ABOUT 80 MPH WILL ALSO BE POSSIBLE WITH THESE STORMS. THESE WINDS ARE CAPABLE OF CAUSING SERIOUS DAMAGE TO MOBILE HOMES... TREES... AND POWER LINES. IN ADDITION... THERE IS A RISK OF A FEW TORNADOES. RECOMMENDED ACTIONS... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS FROM THIS AFTERNOON UNTIL EARLY FRIDAY MORNING. DISCUSSION... A DRYLINE WAS LOCATED VERY NEAR THE EASTERN EDGE OF THE OKLAHOMA AND TEXAS PANHANDLES LATE THIS MORNING. THE DRYLINE IS FORECAST TO SHIFT EAST DURING THE AFTERNOON... PROBABLY REACHING A POSITION NEAR THE WESTERN EDGE OF THE SLIGHT RISK AREA BY MID-AFTERNOON. LOW-LEVEL WINDS WILL CONVERGE ON THE DRYLINE... PROVIDING A SUBSTANTIAL AMOUNT OF LIFT. THIS... COMBINED WITH STRONG INSTABILITY AND SUPPORTIVE WIND PROFILES... WILL LIKELY RESULT IN THE FORMATION OF MULTIPLE SUPERCELL THUNDERSTORMS. STORMS ARE EXPECTED TO BE MOST NUMEROUS IN THE NORTHERN PART OF THE MODERATE-RISK AREA. THE FAVORABLE CONDITIONS FOR SUPERCELL DEVELOPMENT WILL CONTINUE INTO THE NIGHT... WITH A SLOW DECREASING TREND. MOST OF THE STORMS SHOULD BE OVER BY SUNRISE. PROBABILITY TABLE... VALID THROUGH 700 AM CDT FRIDAY MAY 9. PROBABILITY OF THUNDERSTORMS OCCURRING IN THE NWS NORMAN COUNTY WARNING AREA...80 PERCENT. PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...100 PERCENT. OTHER HAZARDOUS WEATHER... STRONG SOUTHWEST WINDS WILL BE POSSIBLE THIS AFTERNOON IN NORTHWEST OKLAHOMA... WITH A FEW GUSTS OVER 40 MPH POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... THUNDERSTORM OUTLOOK... THUNDERSTORMS ARE POSSIBLE EACH DAY THROUGH WEDNESDAY... WITH THE EXCEPTION OF SUNDAY... AND A FEW MAY BE SEVERE EACH OF THESE DAYS. THE GREATEST RISK WILL BE OVER THE EASTERN 2/3 OF OKLAHOMA ON MOST DAYS. OTHER HAZARDOUS WEATHER... NONE. $$ CMS FPUS74 KOUN 081729 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 1230 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-081830- ALFALFA OK-ARCHER TX-ATOKA OK-BAYLOR TX-BECKHAM OK-BLAINE OK- BRYAN OK-CADDO OK-CANADIAN OK-CARTER OK-CLAY TX-CLEVELAND OK-COAL OK- COMANCHE OK-COTTON OK-CUSTER OK-DEWEY OK-ELLIS OK-FOARD TX- GARFIELD OK-GARVIN OK-GRADY OK-GRANT OK-GREER OK-HARDEMAN TX- HARMON OK-HARPER OK-HUGHES OK-JACKSON OK-JEFFERSON OK-JOHNSTON OK- KAY OK-KINGFISHER OK-KIOWA OK-KNOX TX-LINCOLN OK-LOGAN OK-LOVE OK- MAJOR OK-MARSHALL OK-MCCLAIN OK-MURRAY OK-NOBLE OK-OKLAHOMA OK- PAYNE OK-PONTOTOC OK-POTTAWATOMIE OK-ROGER MILLS OK-SEMINOLE OK- STEPHENS OK-TILLMAN OK-WASHITA OK-WICHITA TX-WILBARGER TX-WOODS OK- WOODWARD OK- INCLUDING THE CITIES OF...ADA OK...ALTUS OK...ARDMORE OK... CHICKASHA OK...CLINTON/WEATHERFORD OK...DUNCAN OK...DURANT OK... EL RENO OK...ELK CITY OK...ENID OK...GUTHRIE OK...HOBART OK... LAWTON OK...NORMAN OK...OKLAHOMA CITY OK...PONCA CITY OK... SHAWNEE OK...STILLWATER OK...VERNON TX...WICHITA FALLS TX... WOODWARD OK 1230 PM CDT THU MAY 8 2003 .NOW... AT 1230 PM... A DRYLINE EXTENDED FROM NEAR WOODWARD... TO HOLLIS... TO EASTERN KING COUNTY IN TEXAS. TO THE EAST OF THE DRYLINE... VERY UNSTABLE AIR WAS LOCATED ACROSS MUCH OF WESTERN AND CENTRAL OKLAHOMA... AND THE WESTERN PART OF NORTH TEXAS. ALTHOUGH EXTENSIVE CLOUD COVER CONTINUED OVER THE CENTRAL THIRD OF OKLAHOMA... THE CLOUDS HAD THINNED IN WESTERN PORTIONS OF OKLAHOMA AND NORTH TEXAS... ALLOWING TEMPERATURES TO CLIMB INTO THE MID 80S TO LOWER 90S. BY MID AFTERNOON... THE DRYLINE IS EXPECTED TO MOVE TO NEAR A CHEROKEE... TO FREDERICK... TO JUST WEST OF WICHITA FALLS LINE. ALTHOUGH WARM TEMPERATURES ALOFT WILL TEND TO SUPPRESS THUNDERSTORM DEVELOPMENT THROUGH EARLY AFTERNOON... INCREASING CONVERGENCE ALONG THE DRYLINE... AND ADDITIONAL HEATING... SHOULD ERODE THE CAPPING INVERSION SUFFICIENTLY FOR THUNDERSTORMS TO DEVELOP. AN UPPER LEVEL LOW PRESSURE SYSTEM IS EXPECTED TO MOVE INTO THE CENTRAL PLAINS THIS AFTERNOON. THE SOUTHERN PART OF THE SYSTEM WILL BRUSH ACROSS THE NORTHERN PART OF OKLAHOMA. SCATTERED THUNDERSTORMS ARE EXPECTED TO FORM NEAR AND AHEAD OF THE DRYLINE... MAINLY FROM MID AFTERNOON INTO THE EVENING HOURS. DUE TO THE HIGH INSTABILITY ACROSS THE AREA... ONCE STORMS FORM... THEY WILL QUICKLY BECOME SEVERE. DUE TO A STRONG VERTICAL WIND SHEAR OVER THE SOUTHERN PLAINS... A FEW SUPERCELL THUNDERSTORMS ARE LIKELY. MEANWHILE... STRONG SOUTHWEST WINDS ARE EXPECTED TO DEVELOP BEHIND THE DRYLINE IN NORTHWEST OKLAHOMA LATER THIS AFTERNOON. $$ CJS FPUS74 KOUN 081815 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 115 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-081900- ALFALFA OK-ARCHER TX-ATOKA OK-BAYLOR TX-BECKHAM OK-BLAINE OK- BRYAN OK-CADDO OK-CANADIAN OK-CARTER OK-CLAY TX-CLEVELAND OK-COAL OK- COMANCHE OK-COTTON OK-CUSTER OK-DEWEY OK-ELLIS OK-FOARD TX- GARFIELD OK-GARVIN OK-GRADY OK-GRANT OK-GREER OK-HARDEMAN TX- HARMON OK-HARPER OK-HUGHES OK-JACKSON OK-JEFFERSON OK-JOHNSTON OK- KAY OK-KINGFISHER OK-KIOWA OK-KNOX TX-LINCOLN OK-LOGAN OK-LOVE OK- MAJOR OK-MARSHALL OK-MCCLAIN OK-MURRAY OK-NOBLE OK-OKLAHOMA OK- PAYNE OK-PONTOTOC OK-POTTAWATOMIE OK-ROGER MILLS OK-SEMINOLE OK- STEPHENS OK-TILLMAN OK-WASHITA OK-WICHITA TX-WILBARGER TX-WOODS OK- WOODWARD OK- INCLUDING THE CITIES OF...ADA OK...ALTUS OK...ARDMORE OK... CHICKASHA OK...CLINTON/WEATHERFORD OK...DUNCAN OK...DURANT OK... EL RENO OK...ELK CITY OK...ENID OK...GUTHRIE OK...HOBART OK... LAWTON OK...NORMAN OK...OKLAHOMA CITY OK...PONCA CITY OK... SHAWNEE OK...STILLWATER OK...VERNON TX...WICHITA FALLS TX... WOODWARD OK 115 PM CDT THU MAY 8 2003 .NOW... AT 110 PM... DATA FROM A SPECIAL MIDDAY WEATHER BALLOON RELEASE INDICATES THAT CAPPING INVERSION OVER CENTRAL OKLAHOMA HAD WEAKENED. A DRYLINE EXTENDED FROM FREEDOM... TO MANGUM... TO WESTERN KNOX COUNTY. TO THE EAST OF THE DRYLINE... VERY UNSTABLE AIR CONTINUED ACROSS MUCH OF WESTERN AND CENTRAL OKLAHOMA... AND THE WESTERN PART OF NORTH TEXAS. BY MID AFTERNOON... THE DRYLINE IS EXPECTED TO MOVE TO NEAR A CHEROKEE... TO FREDERICK... TO JUST WEST OF WICHITA FALLS LINE. MEANWHILE... SATELLITE DATA WAS SHOWING AREAS OF DEVELOPING CUMULUS CLOUDS OVER PORTIONS OF WEST CENTRAL AND SOUTHWEST OKLAHOMA. WITH A WEAKENING OF THE CAP... A FEW THUNDERSTORMS COULD DEVELOP BY AS EARLY AS 2 PM ALONG AND NEAR THE DRYLINE. THUNDERSTORMS SHOULD INCREASE IN COVERAGE THROUGH THE LATE AFTERNOON AND EVENING HOURS. ONCE STORMS FORM... THEY COULD QUICKLY BECOME SEVERE. DUE TO A STRONG VERTICAL WIND SHEAR OVER THE SOUTHERN PLAINS... A FEW SUPERCELL THUNDERSTORMS ARE LIKELY. $$ CJS WWUS64 KOUN 081834 SLSOK BULLETIN - IMMEDIATE BROADCAST REQUESTED AREAL OUTLINE FOR TORNADO WATCH NUMBER 304 NATIONAL WEATHER SERVICE NORMAN OK 133 PM CDT THU MAY 8 2003 TORNADO WATCH NUMBER 304 IN EFFECT UNTIL 900 PM CDT. IN OKLAHOMA THIS WATCH INCLUDES 35 COUNTIES... OKC017-027-051-073-081-083-087-109-119-125-090200- IN CENTRAL OKLAHOMA THIS WATCH INCLUDES 10 COUNTIES... CANADIAN CLEVELAND GRADY KINGFISHER LINCOLN LOGAN MCCLAIN OKLAHOMA PAYNE POTTAWATOMIE $$ OKC107-123-133-090200- IN EAST CENTRAL OKLAHOMA THIS WATCH INCLUDES 3 COUNTIES... OKFUSKEE PONTOTOC SEMINOLE $$ OKC037-113-117-090200- IN NORTHEAST OKLAHOMA THIS WATCH INCLUDES 3 COUNTIES... CREEK OSAGE PAWNEE $$ OKC047-053-071-103-090200- IN NORTHERN OKLAHOMA THIS WATCH INCLUDES 4 COUNTIES... GARFIELD GRANT KAY NOBLE $$ OKC003-011-093-090200- IN NORTHWEST OKLAHOMA THIS WATCH INCLUDES 3 COUNTIES... ALFALFA BLAINE MAJOR $$ OKC019-049-067-085-099-137-090200- IN SOUTHERN OKLAHOMA THIS WATCH INCLUDES 6 COUNTIES... CARTER GARVIN JEFFERSON LOVE MURRAY STEPHENS $$ OKC015-031-033-075-141-090200- IN SOUTHWEST OKLAHOMA THIS WATCH INCLUDES 5 COUNTIES... CADDO COMANCHE COTTON KIOWA TILLMAN $$ OKC149-090200- IN WESTERN OKLAHOMA THIS WATCH INCLUDES 1 COUNTY... WASHITA $$ FLUS44 KOUN 081848 HWOOKC OKZ004>048-050>052-TXZ083>090-091200- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 147 PM CDT THU MAY 8 2003 THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN... CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... THUNDERSTORM OUTLOOK... THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS. LOCATION... THE MODERATE RISK AREA IS EAST OF A LINE FROM BLACKWELL TO OKLAHOMA CITY TO HENRIETTA TEXAS. TO THE WEST OF THE MODERATE RISK... A SLIGHT RISK EXISTS EAST OF A LINE FROM CHEROKEE TO LAWTON TO SEYMOUR TEXAS. TIMING... SEVERE THUNDERSTORMS ARE LIKELY TO DEVELOP THROUGHOUT THE AFTERNOON... EVENING... AND OVERNIGHT. IMPACTS... A FEW OF THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING HAIL TO AROUND BASEBALL SIZE. HAIL OF THIS SIZE CAN CAUSE EXTENSIVE DAMAGE TO ROOFS AND VEHICLES. WIND GUSTS TO ABOUT 80 MPH WILL ALSO BE POSSIBLE WITH THESE STORMS. THESE WINDS ARE CAPABLE OF CAUSING SERIOUS DAMAGE TO MOBILE HOMES... TREES... AND POWER LINES. IN ADDITION... THERE IS A RISK OF TORNADOES. RECOMMENDED ACTIONS... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS FROM THIS AFTERNOON UNTIL EARLY FRIDAY MORNING. DISCUSSION... EARLY THIS AFTERNOON... THE DRYLINE EXTENDED FROM NEAR WOODWARD OKLAHOMA TO JUST WEST OF ABILENE TEXAS. THE DRYLINE IS FORECAST TO CONTINUE TO SHIFT EAST DURING THE AFTERNOON... PROBABLY REACHING A POSITION NEAR THE WESTERN EDGE OF THE SLIGHT RISK AREA BY MID-AFTERNOON. LOW-LEVEL WINDS WILL CONVERGE ON THE DRYLINE... PROVIDING A SUBSTANTIAL AMOUNT OF LIFT. THIS... COMBINED WITH STRONG INSTABILITY... A WEAK CAP... AND SUPPORTIVE WIND PROFILES... WILL LIKELY RESULT IN THE FORMATION OF MULTIPLE SUPERCELL THUNDERSTORMS. STORMS ARE EXPECTED TO BE MOST NUMEROUS IN THE NORTHERN PART OF THE MODERATE-RISK AREA. THE FAVORABLE CONDITIONS FOR SUPERCELL DEVELOPMENT WILL CONTINUE INTO THE NIGHT... WITH A SLOW DECREASING TREND. MOST OF THE SEVERE WEATHER SHOULD END BY SUNRISE. PROBABILITY TABLE... VALID THROUGH 700 AM CDT FRIDAY MAY 9. PROBABILITY OF THUNDERSTORMS OCCURRING IN THE NWS NORMAN COUNTY WARNING AREA...NEAR 100 PERCENT. PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...NEAR 100 PERCENT. OTHER HAZARDOUS WEATHER... STRONG SOUTHWEST WINDS WILL BE POSSIBLE THIS AFTERNOON WEST OF THE DRYLINE... ESPECIALLY IN NORTHWEST OKLAHOMA. A FEW GUSTS OVER 40 MPH WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... THUNDERSTORM OUTLOOK... THUNDERSTORMS ARE POSSIBLE EACH DAY THROUGH WEDNESDAY. THE DAYS WITH THE GREATEST RISK OF SEVERE STORMS WILL BE FRIDAY AND SATURDAY TO THE EAST OF I-35... AND TUESDAY AND WEDNESDAY ACROSS THE ENTIRE AREA. OTHER HAZARDOUS WEATHER... NONE. THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM FRIDAY. $$ GRAPHICAL OUTLOOKS ARE AVAILABLE ON THE WEB AT HTTP://WWW.SRH.NOAA.GOV/OUN CMS FPUS74 KOUN 081852 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 155 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-082000- ALFALFA OK-ARCHER TX-ATOKA OK-BAYLOR TX-BECKHAM OK-BLAINE OK- BRYAN OK-CADDO OK-CANADIAN OK-CARTER OK-CLAY TX-CLEVELAND OK-COAL OK- COMANCHE OK-COTTON OK-CUSTER OK-DEWEY OK-ELLIS OK-FOARD TX- GARFIELD OK-GARVIN OK-GRADY OK-GRANT OK-GREER OK-HARDEMAN TX- HARMON OK-HARPER OK-HUGHES OK-JACKSON OK-JEFFERSON OK-JOHNSTON OK- KAY OK-KINGFISHER OK-KIOWA OK-KNOX TX-LINCOLN OK-LOGAN OK-LOVE OK- MAJOR OK-MARSHALL OK-MCCLAIN OK-MURRAY OK-NOBLE OK-OKLAHOMA OK- PAYNE OK-PONTOTOC OK-POTTAWATOMIE OK-ROGER MILLS OK-SEMINOLE OK- STEPHENS OK-TILLMAN OK-WASHITA OK-WICHITA TX-WILBARGER TX-WOODS OK- WOODWARD OK- INCLUDING THE CITIES OF...ADA OK...ALTUS OK...ARDMORE OK... CHICKASHA OK...CLINTON/WEATHERFORD OK...DUNCAN OK...DURANT OK... EL RENO OK...ELK CITY OK...ENID OK...GUTHRIE OK...HOBART OK... LAWTON OK...NORMAN OK...OKLAHOMA CITY OK...PONCA CITY OK... SHAWNEE OK...STILLWATER OK...VERNON TX...WICHITA FALLS TX... WOODWARD OK 155 PM CDT THU MAY 8 2003 .NOW... AT 150 PM... THE DRYLINE WAS LOCATED FROM FREEDOM... TO ALTUS... TO WESTERN HASKELL COUNTY IN TEXAS. TO THE EAST OF THE DRY LINE... VERY UNSTABLE CONDITIONS WERE PRESENT. LATEST MESOANALYSIS SHOWED CAPE VALUES APPROACHING 5000 OVER NORTH CENTRAL OKLAHOMA... WITH 3500 TO 4000 OVER THE REST OF THE AREA. SATELLITE DATA CONTINUED TO SHOW CUMULUS CLOUDS FORMING ALONG AND AHEAD OF THE DRY LINE. INITIAL THUNDERSTORM DEVELOPMENT IS LIKELY ALONG AND 50 MILES EAST OF THE DRYLINE... WHERE WIND CONVERGENCE WAS STRONGEST. THUNDERSTORMS SHOULD INCREASE IN COVERAGE THROUGH THE LATE AFTERNOON AND EVENING HOURS. WITH DEW POINTS IN THE LOW TO MIDDLE 70S... AND STRONG VERTICAL WIND SHEAR... THUNDERSTORMS WILL QUICKLY BECOME SEVERE... WITH SUPERCELL THUNDERSTORMS LIKELY. THESE STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL... DAMAGING WINDS... AS WELL AS A FEW TORNADOES. $$ CJS/TY FXUS64 KOUN 081920 AFDOKC AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 219 PM CDT THU MAY 8 2003 ...POTENTIAL FOR A SIGNIFICANT SEVERE WEATHER OUTBREAK INCLUDING SUPERCELLS AND TORNADOES ACROSS THE CENTRAL THIRD OF OKLAHOMA DURING THE NEXT 3-9 HOURS... MID/UPPER LEVEL TROF AND SFC LOW CONT TO RAPIDLY DEEPEN OVER WRN KS/ERN CO EARLY THIS AFTERNOON.. AND THERE IS SUBTLE EVIDENCE OF A SECONDARY IMPULSE PUSHING EWD ACROSS NEW MEXICO. 18Z OUN SOUNDING INDICATES THAT CAPPING IS MUCH WEAKER THAN PREVIOUSLY EXPECTED ALONG DRYLINE ACROSS MOST OF OKLAHOMA. POTENT THERMODYNAMIC PROFILE IS EVIDENT WITH VERY HIGH BOUNDARY LAYER MOISTURE CONTENT.. LOW LCL HGHTS AND STEEP MID LEVEL LAPSE RATES. IN ADDITION..THE HODOGRAPH SHOWS SIGNIFICANT LOW LEVEL AND DEEP LAYER SHEAR IN PLACE.. HILITED BY A DISTINCT KINK IN THE HODOGRAPH AT ABOUT 1.5 KM AGL. THIS TYPE OF LOW LEVEL SHEAR PROFILE IN COMBINATION WITH ABOVE MENTIONED THERMODYNAMICS HAS OFTEN BEEN ASSOCIATED WITH ENVIRONMENTS SUPPORTIVE OF LONG LIVED STRONG/VIOLENT TORNADOES. EXPECT INITIATION INVOF THE DRYLINE WITHIN THE NEXT COUPLE HOURS WITH SUPERCELL DEVELOPMENT LIKELY. SVR THREAT WILL LIKELY CONTINUE WELL INTO THE NITE AS STRONG UVVS CONT ALONG DRYLINE UNTIL AT LEAST 06Z ACROSS MUCH OF OKLAHOMA. LIKELY TO SEE DEVELOPMENT SWD INTO TEXAS LATER THIS AFT/EVE. INSTABILITY AXIS WILL RELOAD FRIDAY OVER THE SE ZONES.. AND THEN EXPAND NWWD INTO REDEVELOPING WARM FRONTAL ZONE FRIDAY NITE. HAVE READJUSTED POPS TO ACCOUNT FOR THIS THINKING. NEXT WAVE WILL EJECT ONTO THE PLAINS SATURDAY.. BUT MAIN FOCUS FOR ACTIVITY WITH THIS WAVE LOOKS TO BE NORTHEAST OF THE OUN CWA ATTM. HOWEVER..STILL LIKELY TO SEE AT LEAST A FEW STORMS ALONG/SE OF I44 CORRIDOR AHEAD OF DRYLINE/FRONT. IT APPEARS THAT LOW LEVEL RIDGING WILL FINALLY BUILD SWD FAR ENUF SUNDAY INTO MONDAY TO ALLOW FOR A BRIEF RESPITE FROM STORMS..BUT TROPICAL BOUNDARY LAYER AIR WILL BE LURKING CLOSE BY AND SHUD MOVE BACK NWD MONDAY/TUES AS LONG WAVE TROF RELOADS OVER THE WRN CONUS. WE WILL BRING SLGT CHC POPS BACK INTO THE SW ZONES MONDAY AFTERNOON WITH ONSET OF MOISTURE RETURN.. AND THEN EXPAND/INCREASE POPS ACROSS THE REST OF THE AREA THRU MID WEEK. MORE BOUTS OF SVR STORMS SEEM LIKELY AS SIGNIFICANT INSTABILITY AXIS REMAINS SUPERIMPOSED UNDERNEATH STRONG MID LEVEL FLOW. MILLER OKC 64 89 67 84 / 60 20 20 30 HBR 59 91 64 88 / 10 20 20 20 SPS 66 94 68 92 / 50 30 20 30 GAG 51 89 57 82 / 10 30 30 10 PNC 64 85 67 82 / 60 20 40 20 DUA 71 88 72 88 / 60 20 20 40 .OUN... OK...NONE. TX...NONE. FLUS74 KOUN 081929 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 226 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL OKLAHOMA. CAREFULLY EXAMINING VOLUMETRIC REFLECTIVITY DATA FOR FIRST ECHO. APPEARS KTLX MAY BE PRIMARY RADAR THIS AFTERNOON. BEGINNING TO SEE SOME INITIAL RETURNS FROM NW CANADIAN COUNTY AND NORTHERN CADDO COUNTY SUGGESTING CAP IS NEARLY BROKEN. STORMS THAT BEGIN TO EXHIBIT SUPERCELL STRUCTURES OR POSESS ELEVATED (30 KFT) 50 DBZ RETURNS LIKELY WILL RECEIVE SEVERE TSTM WARNINGS...WITH CAREFUL SURVEILLANCE FOR DEVELOPMENT OF MESOCYCLONE TRENDS TO SUPPORT POTENTIAL TORNADO WARNINGS LATER. $$ ANDRA FPUS74 KOUN 081946 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 245 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-082030- .NOW... AT 245 PM... CUMULUS CLOUDS WERE CONTINUING TO DEVELOP ALONG AND AHEAD OF THE DRY LINE... ESPECIALLY ACROSS SOUTHWEST AND NORTH CENTRAL OKLAHOMA. ISOLATED THUNDERSTORMS ARE BEGINNING TO DEVELOP IN NORTHERN CADDO COUNTY... WITH ADDITIONAL THUNDERSTORMS EXPECTED TO DEVELOP LATER THIS AFTERNOON. CONDITIONS WERE BECOMING INCREASINGLY UNSTABLE AHEAD OF THE DRY LINE. WITH DEW POINTS IN THE LOW TO MIDDLE 70S... AND STRONG VERTICAL WIND SHEAR... THUNDERSTORMS WILL QUICKLY BECOME SEVERE... WITH SUPERCELL THUNDERSTORMS LIKELY. THESE STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL... DAMAGING WINDS... AND STRONG TORNADOES. THUNDERSTORMS DEVELOPMENT IS ALSO LIKELY SOUTH OF THE RED RIVER LATER THIS AFTERNOON. CUMULUS CLOUDS WERE BEGINNING TO DEVELOP OVER WESTERN NORTH TEXAS... FROM NEAR WICHITA FALLS TO ARCHER CITY TEXAS. LARGE HAIL... DAMAGING WINDS... AND TORNADOES ARE ALSO POSSIBLE ACROSS THIS AREA. STRONG WINDS OVER NORTHWEST OKLAHOMA ARE POSSIBLE THIS AFTERNOON. WIND GUSTS MAY EXCEED 40 MPH AT TIMES. $$ CJS/TY FLUS74 KOUN 081957 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 255 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL OKLAHOMA. CAREFUL EXAMINATION OF VOLUMETRIC REFLECTIVITY DATA FINDS PERSISTENT ATTEMPTS FOR DEVELOPMENT ALONG I40 IN WESTERN CANADIAN/CADDO COUNTIES. SO FAR APPEARS SHEAR IS NOT ALLOWING UPDRAFTS TO REMAIN SUSTAINED WITH HIGHEST Z VALUES AT OR BELOW FREEZING LEVEL. THIS IS TYPICAL EARLY IN AN EVENT AND EXPECT AT LEAST ONE STORM TO TAKE HOLD AND ORGANIZE IN THE NEXT HOUR. GREATEST THREAT THROUGH 400 PM IS CENTRAL OK NORTH OF I 40 AND WEST OF I35. INITIAL STORMS LIKELY TO MOVE 240/30 KT...THEN 270/25 KT SUPERCELL MOTION. STORMS THAT BEGIN TO EXHIBIT SUPERCELL STRUCTURES OR POSESS ELEVATED (30 KFT) 50 DBZ RETURNS LIKELY WILL RECEIVE SEVERE TSTM WARNINGS...WITH CAREFUL SURVEILLANCE FOR DEVELOPMENT OF MESOCYCLONE TRENDS TO SUPPORT POTENTIAL TORNADO WARNINGS LATER. $$ ANDRA FXUS64 KOUN 082035 AFDOKC AREA FORECAST DISCUSSION...UPDATED... NATIONAL WEATHER SERVICE NORMAN OK 334 PM CDT THU MAY 8 2003 UPDATED TO ISSUE WIND ADVISORY FOR NW OK FROM 4 UNTIL 7 PM THIS EVENING. REMAINDER OF FORECAST REASONING REMAINS UNCHANGED. MILLER .OUN... OK...WIND ADVISORY UNTIL 7 PM THIS EVENING OKZ004-005-009-010. TX...NONE. **************************** 219 PM CDT THUS MAY 8 2003 ...POTENTIAL FOR A SIGNIFICANT SEVERE WEATHER OUTBREAK INCLUDING SUPERCELLS AND TORNADOES ACROSS THE CENTRAL THIRD OF OKLAHOMA DURING THE NEXT 3-9 HOURS... MID/UPPER LEVEL TROF AND SFC LOW CONT TO RAPIDLY DEEPEN OVER WRN KS/ERN CO EARLY THIS AFTERNOON.. AND THERE IS SUBTLE EVIDENCE OF A SECONDARY IMPULSE PUSHING EWD ACROSS NEW MEXICO. 18Z OUN SOUNDING INDICATES THAT CAPPING IS MUCH WEAKER THAN PREVIOUSLY EXPECTED ALONG DRYLINE ACROSS MOST OF OKLAHOMA. POTENT THERMODYNAMIC PROFILE IS EVIDENT WITH VERY HIGH BOUNDARY LAYER MOISTURE CONTENT.. LOW LCL HGHTS AND STEEP MID LEVEL LAPSE RATES. IN ADDITION..THE HODOGRAPH SHOWS SIGNIFICANT LOW LEVEL AND DEEP LAYER SHEAR IN PLACE.. HILITED BY A DISTINCT KINK IN THE HODOGRAPH AT ABOUT 1.5 KM AGL. THIS TYPE OF LOW LEVEL SHEAR PROFILE IN COMBINATION WITH ABOVE MENTIONED THERMODYNAMICS HAS OFTEN BEEN ASSOCIATED WITH ENVIRONMENTS SUPPORTIVE OF LONG LIVED STRONG/VIOLENT TORNADOES. EXPECT INITIATION INVOF THE DRYLINE WITHIN THE NEXT COUPLE HOURS WITH SUPERCELL DEVELOPMENT LIKELY. SVR THREAT WILL LIKELY CONTINUE WELL INTO THE NITE AS STRONG UVVS CONT ALONG DRYLINE UNTIL AT LEAST 06Z ACROSS MUCH OF OKLAHOMA. LIKELY TO SEE DEVELOPMENT SWD INTO TEXAS LATER THIS AFT/EVE. INSTABILITY AXIS WILL RELOAD FRIDAY OVER THE SE ZONES.. AND THEN EXPAND NWWD INTO REDEVELOPING WARM FRONTAL ZONE FRIDAY NITE. HAVE READJUSTED POPS TO ACCOUNT FOR THIS THINKING. NEXT WAVE WILL EJECT ONTO THE PLAINS SATURDAY.. BUT MAIN FOCUS FOR ACTIVITY WITH THIS WAVE LOOKS TO BE NORTHEAST OF THE OUN CWA ATTM. HOWEVER..STILL LIKELY TO SEE AT LEAST A FEW STORMS ALONG/SE OF I44 CORRIDOR AHEAD OF DRYLINE/FRONT. IT APPEARS THAT LOW LEVEL RIDGING WILL FINALLY BUILD SWD FAR ENUF SUNDAY INTO MONDAY TO ALLOW FOR A BRIEF RESPITE FROM STORMS..BUT TROPICAL BOUNDARY LAYER AIR WILL BE LURKING CLOSE BY AND SHUD MOVE BACK NWD MONDAY/TUES AS LONG WAVE TROF RELOADS OVER THE WRN CONUS. WE WILL BRING SLGT CHC POPS BACK INTO THE SW ZONES MONDAY AFTERNOON WITH ONSET OF MOISTURE RETURN.. AND THEN EXPAND/INCREASE POPS ACROSS THE REST OF THE AREA THRU MID WEEK. MORE BOUTS OF SVR STORMS SEEM LIKELY AS SIGNIFICANT INSTABILITY AXIS REMAINS SUPERIMPOSED UNDERNEATH STRONG MID LEVEL FLOW. MILLER OKC 64 89 67 84 / 60 20 20 30 HBR 59 91 64 88 / 10 20 20 20 SPS 66 94 68 92 / 50 30 20 30 GAG 51 89 57 82 / 10 30 30 10 PNC 64 85 67 82 / 60 20 40 20 DUA 71 88 72 88 / 60 20 20 40 .OUN... OK...NONE. TX...NONE. FPUS74 KOUN 082037 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 325 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-082130- .NOW... AT 335 PM... EXTREME INSTABILITY AND SUBSTANTIAL WIND SHEAR WERE OBSERVED FROM NORTH-CENTRAL OKLAHOMA INTO THE WICHITA FALLS AREA OF NORTH TEXAS. CAPE VALUES ABOVE 4000 WERE WIDESPREAD ACROSS THIS AREA. STORMS ARE FORECAST TO DEVELOP RAPIDLY DURING THE NEXT HOUR OR TWO... MAINLY IN THE AREA FROM JUST NORTHWEST OF THE OKLAHOMA CITY METRO AREA SOUTH TOWARD LAWTON AND POSSIBLY WICHITA FALLS TEXAS. THE FIRST FEW STORMS WILL LIKELY BE SHORT-LIVED... BUT MUCH STRONGER STORMS ARE LIKELY TO FOLLOW. THERE IS A HIGH RISK OF SEVERE STORMS THROUGH THIS EVENING ACROSS NORTH-CENTRAL AND CENTRAL OKLAHOMA... MAINLY EAST OF INTERSTATE 35 AND NORTH OF ADA... INCLUDING THE OKLAHOMA CITY METRO AREA. SLIGHT AND MODERATE RISKS SURROUND THE HIGH RISK AREA... AND ARE GENERALLY EAST OF A LINE FROM ALVA TO WATONGA TO WICHITA FALLS. CONDITIONS ARE VERY FAVORABLE FOR TORNADO DEVELOPMENT... ESPECIALLY IN THE HIGH RISK AREA. $$ CMS FLUS74 KOUN 082038 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 335 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS SOUTHWEST AND CENTRAL OKLAHOMA. IN ADDITION TO CADDO/CANADIAN CO. HOT SPOT...KFDR AND KTLX SHOW DEEP ECHO DEVELOPING JUST NORTHEAST OF LAWTON. THIS ECHO WILL MOVE INTO INCREASINGLY FAVORABLE SHEAR/HELICITY AND IS BEING CLOSELY MONITORED FOR SUPERCELL Z/V STRUCTURES TO SUPPORT SVR TSTM WARNING. $$ ANDRA WWUS74 KOUN 082041 NPWOKC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE NORMAN OK 341 PM CDT THU MAY 8 2003 OKZ004-005-009-010-090000- ELLIS OK-HARPER OK-WOODS OK-WOODWARD OK- INCLUDING THE CITIES OF...WOODWARD AND ALVA 341 PM CDT THU MAY 8 2003 ...WIND ADVISORY FOR LATE THIS AFTERNOON AND EARLY EVENING... STRENGTHENING LOW PRESSURE OVER WESTERN KANSAS WILL CAUSE STRONG SOUTHWEST WINDS ACROSS THE NORTHWESTERN PART OF OKLAHOMA. WINDS AVERAGING 25 TO 35 MPH WITH FREQUENT GUSTS TO AROUND 45 MPH WILL BE LIKELY UNTIL AROUND 7 PM. WINDS ARE EXPECTED TO DIMINISH RAPIDLY AFTER 7 PM. STRONG WINDS CAN POSE HANDLING PROBLEMS FOR DRIVERS OF HIGH PROFILE VEHICLES AND FOR UNSUPPORTED WALLS AT CONSTRUCTION SITES. BOATERS SHOULD NOT VENTURE OUT ONTO AREA LAKES. ALSO... TAKE PRECAUTIONS TO SECURE TRASH CANS... LAWN FURNITURE AND OTHER LOOSE OUTDOOR OBJECTS. $$ CMS/MILLER FLUS44 KOUN 082041 HWOOKC OKZ004>048-050>052-TXZ083>090-091200- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 340 PM CDT THU MAY 8 2003 THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN... CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... THUNDERSTORM OUTLOOK... THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT ACROSS PORTIONS OF CENTRAL AND NORTHERN OKLAHOMA. THERE IS ALSO A MODERATE RISK OF SEVERE THUNDERSTORMS OVER SOUTH CENTRAL OKLAHOMA... WHILE A SLIGHT RISK OF SEVERE THUNDERSTORMS EXISTS FOR WESTERN PORTIONS OF OKLAHOMA AND NORTH TEXAS. LOCATION... THE HIGH RISK AREA IS ALONG AND EAST OF THE INTERSTATE 35 CORRIDOR... AND NORTH OF A PAULS VALLEY TO ADA LINE. THE OKLAHOMA CITY METRO AREA IS INCLUDED IN THE HIGH RISK AREA. BOUNDING THE HIGH RISK AREA IS A MODERATE RISK AREA THAT EXTENDS ALONG AND EAST OF A LINE FROM ENID TO LAWTON... AND NORTH OF A LINE FROM LAWTON TO MARIETTA... TO DURANT. THE SLIGHT RISK AREA COVERS THE REMAINDER OF WEST CENTRAL OKLAHOMA AND WESTERN NORTH TEXAS... EAST OF A LINE FROM CHEROKEE... TO CACHE... TO ELECTRA TEXAS. TIMING... SEVERE THUNDERSTORMS ARE LIKELY TO DEVELOP THIS AFTERNOON... EVENING... AND OVERNIGHT. IMPACTS... SOME OF THE SUPERCELL THUNDERSTORMS WILL BE CAPABLE OF PRODUCING STRONG TORNADOES. VERY LARGE HAIL TO AROUND BASEBALL SIZE WILL ALSO BE POSSIBLE. WIND GUSTS TO ABOUT 80 MPH MAY ALSO OCCUR WITH THESE STORMS. RECOMMENDED ACTIONS... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS FROM THIS AFTERNOON UNTIL EARLY FRIDAY MORNING. DISCUSSION... BY MID AFTERNOON... THE DRYLINE EXTENDED FROM NEAR ALVA OKLAHOMA TO JUST WEST OF WICHITA FALL TEXAS. THE DRYLINE IS FORECAST TO CONTINUE TO MOVE EAST... REACHING CENTRAL OKLAHOMA THIS EVENING. LOW-LEVEL WINDS WILL CONVERGE ON THE DRYLINE... PROVIDING A SUBSTANTIAL AMOUNT OF LIFT. THIS... COMBINED WITH VERY HIGH INSTABILITIES AND FAVORABLE WIND PROFILES... WILL LIKELY RESULT IN THE FORMATION OF MULTIPLE SUPERCELL THUNDERSTORMS. THE FAVORABLE CONDITIONS FOR SUPERCELL DEVELOPMENT WILL CONTINUE INTO THE NIGHT... WITH A SLOW DECREASING TREND. MOST OF THE SEVERE WEATHER SHOULD END BY SUNRISE. PROBABILITY TABLE... VALID THROUGH 700 AM CDT FRIDAY MAY 9. PROBABILITY OF THUNDERSTORMS OCCURRING IN THE NWS NORMAN COUNTY WARNING AREA...NEAR 100 PERCENT. PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...NEAR 100 PERCENT. OTHER HAZARDOUS WEATHER... STRONG WEST WINDS WILL BE POSSIBLE THIS AFTERNOON WEST OF THE DRYLINE... ESPECIALLY IN NORTHWEST OKLAHOMA. A FEW GUSTS OVER 40 MPH WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... THUNDERSTORM OUTLOOK... THUNDERSTORMS ARE POSSIBLE EACH DAY THROUGH WEDNESDAY. THE DAYS WITH THE GREATEST RISK OF SEVERE STORMS WILL BE FRIDAY AND SATURDAY TO THE EAST OF I-35... AND TUESDAY AND WEDNESDAY ACROSS THE ENTIRE AREA. OTHER HAZARDOUS WEATHER... NONE. THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM FRIDAY. $$ GRAPHICAL OUTLOOKS ARE AVAILABLE ON THE WEB AT HTTP://WWW.SRH.NOAA.GOV/OUN CJS FLUS74 KOUN 082049 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 345 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS SOUTHWEST AND CENTRAL OKLAHOMA. NORTHEAST COMANCHE COUNTY STORM IS STRENGTHENING AND POLARIMENTRIC RADAR DATA (ZDR) FROM NSSL SUGGESTS LIQUID WATER ABOVE FREEZING LEVEL INDICATIVE OF STRENGTHENING UPDRAFT. NOW LOOKING CAREFULLY FOR COLUMN OF HIGH Z (>50 DBZ) BETWEEN 15-30 KFT. THIS MAY BE AN INCIPIENT SUPERCELL. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA WWUS84 KOUN 082050 SPSOKC OKZ027-082100- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 347 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR GRADY COUNTY. A STRONG THUNDERSTORM WAS LOCATED 10 MILES SOUTHWEST OF RUSH SPRINGS AT 347 PM CDT...MOVING NORTHEAST AT 25 MPH. CONDITIONS ARE FAVORABLE FOR THIS THUNDERSTORM TO INTENSIFY QUICKLY AND COULD BECOME SEVERE. A TORNADO WATCH IS IN EFFECT. STAY TUNED FOR POSSIBLE WARNINGS. $$ JAMES FPUS54 KOUN 082101 ZFPOKC ZONE FORECAST NATIONAL WEATHER SERVICE NORMAN OK 401 PM CDT THU MAY 8 2003 OKZ008-013-090952- KAY OK-NOBLE OK- INCLUDING THE CITIES OF...PONCA CITY OK 401 PM CDT THU MAY 8 2003 .TONIGHT...A 60 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE WITH VERY LARGE HAIL...DAMAGING WINDS...AND TORNADOES. LOWS IN THE MID 60S. SOUTH WINDS 15 TO 25 MPH DECREASING AFTER MIDNIGHT TO 10 MPH. .FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS 10 TO 15 MPH. .FRIDAY NIGHT...CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. SOUTHEAST WINDS 10 TO 15 MPH. .SATURDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. .SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. .SUNDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. .SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. .MONDAY...MOSTLY CLEAR DURING THE DAY...THEN MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 70S. .TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S AND HIGHS IN THE MID 70S. .WEDNESDAY...CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S AND HIGHS IN THE LOWER 80S. .THURSDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S AND HIGHS IN THE UPPER 70S. $$ OKZ019-025-090952- LOGAN OK-OKLAHOMA OK- INCLUDING THE CITIES OF...GUTHRIE OK...OKLAHOMA CITY OK 401 PM CDT THU MAY 8 2003 .TONIGHT...A 60 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE WITH VERY LARGE HAIL...DAMAGING WINDS...AND TORNADOES. LOWS IN THE MID 60S. SOUTHWEST WINDS 15 TO 25 MPH DECREASING AFTER MIDNIGHT TO 10 MPH. .FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND 15 MPH. .FRIDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. SOUTH WINDS 10 TO 20 MPH. .SATURDAY...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 80S. .SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. .SUNDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. .SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. .MONDAY...MOSTLY CLEAR DURING THE DAY...THEN MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 70S. .TUESDAY...CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS NEAR 60 AND HIGHS IN THE UPPER 70S. .WEDNESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S AND HIGHS IN THE LOWER 80S. .THURSDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S AND HIGHS NEAR 80. $$ OKZ020-026-090952- LINCOLN OK-PAYNE OK- INCLUDING THE CITIES OF...STILLWATER OK 401 PM CDT THU MAY 8 2003 .TONIGHT...A 60 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE WITH VERY LARGE HAIL...DAMAGING WINDS...AND TORNADOES. LOWS IN THE MID 60S. SOUTH WINDS 15 TO 25 MPH. .FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND 15 MPH. .FRIDAY NIGHT...CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. SOUTH WINDS 10 TO 20 MPH. .SATURDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. WINDY. HIGHS IN THE MID 80S. .SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. .SUNDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. .SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. .MONDAY...MOSTLY CLEAR DURING THE DAY...THEN MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 70S. .TUESDAY...CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS NEAR 60 AND HIGHS IN THE UPPER 70S. .WEDNESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S AND HIGHS IN THE LOWER 80S. .THURSDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S AND HIGHS IN THE UPPER 70S. $$ OKZ023-027-090952- CADDO OK-GRADY OK- INCLUDING THE CITIES OF...CHICKASHA OK 401 PM CDT THU MAY 8 2003 .TONIGHT...PARTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE THIS EVENING WITH LARGE HAIL...DAMAGING WINDS...AND TORNADOES. LOWS IN THE MID 60S. SOUTHWEST WINDS 15 TO 25 MPH DECREASING AFTER MIDNIGHT TO 10 MPH. .FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 10 TO 15 MPH. .FRIDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. SOUTH WINDS 10 TO 20 MPH. .SATURDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 80S. .SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. .SUNDAY...MOSTLY SUNNY. HIGHS NEAR 80. .SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. .MONDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS LATE. HIGHS IN THE UPPER 70S. .TUESDAY...CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS NEAR 60 AND HIGHS IN THE UPPER 70S. .WEDNESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S AND HIGHS IN THE MID 80S. .THURSDAY...PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S AND HIGHS IN THE LOWER 80S. $$ OKZ028-029-090952- CLEVELAND OK-MCCLAIN OK- INCLUDING THE CITIES OF...NORMAN OK 401 PM CDT THU MAY 8 2003 .TONIGHT...A 60 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE WITH VERY LARGE HAIL...DAMAGING WINDS...AND TORNADOES. LOWS IN THE UPPER 60S. SOUTH WINDS 15 TO 25 MPH. .FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND 15 MPH. .FRIDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. SOUTH WINDS 10 TO 20 MPH. .SATURDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. WINDY. HIGHS IN THE MID 80S. .SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. .SUNDAY...MOSTLY SUNNY. HIGHS NEAR 80. .SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. .MONDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS LATE. HIGHS IN THE UPPER 70S. .TUESDAY...CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS NEAR 60 AND HIGHS IN THE UPPER 70S. .WEDNESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S AND HIGHS IN THE LOWER 80S. .THURSDAY...A CHANCE OF SHOWERS AND THUNDERSTORMS...OTHERWISE BECOMING MOSTLY CLEAR. LOWS IN THE UPPER 60S AND HIGHS NEAR 80. $$ OKZ030>032-042-090952- HUGHES OK-PONTOTOC OK-POTTAWATOMIE OK-SEMINOLE OK- INCLUDING THE CITIES OF...ADA OK...SHAWNEE OK 401 PM CDT THU MAY 8 2003 .TONIGHT...A 60 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE WITH VERY LARGE HAIL...DAMAGING WINDS...AND TORNADOES. LOWS NEAR 70. SOUTH WINDS 15 TO 25 MPH. .FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS NEAR 90. SOUTHWEST WINDS 10 TO 20 MPH. .FRIDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS NEAR 70. SOUTH WINDS 10 TO 20 MPH. .SATURDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. WINDY. HIGHS IN THE MID 80S. .SATURDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S. .SUNDAY...MOSTLY SUNNY. HIGHS NEAR 80. .SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. .MONDAY...MOSTLY CLEAR DURING THE DAY...THEN MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 70S. .TUESDAY...CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S AND HIGHS IN THE UPPER 70S. .WEDNESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S AND HIGHS IN THE LOWER 80S. .THURSDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S AND HIGHS NEAR 80. $$ FLUS74 KOUN 082102 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 358 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS SOUTHWEST AND CENTRAL OKLAHOMA. KTLX Z DATA INDICATES DEEP CONVECTION ORGANIZING NOW UPSTREAM OF OKC METRO AREA FROM POCASSET TO RUSH SPRINGS IN CADDO COUNTY. INITIAL CELL MOTIONS ROUGHLY 220/35 BASED ON MANUAL CELL TRACKING. NOW LOOKING CAREFULLY FOR COLUMN OF HIGH Z (>50 DBZ) BETWEEN 15-30 KFT IN THESE CELLS. ENVIRONMENT HAS SHEAR AND INSTABILITY SUGFFICENT TO SUPPORT RAPID SUPERCELL EVOLUTION. ANY OF THESE MAY BE AN INCIPIENT SUPERCELL...WITH OUR EMPHASIS NOW ON SOUTHERN GRADY COUNTY ECHO AND STORM DUE WEST OF CHICKASHA. WHEN STORMS ORGANIZE FURTHER...INITIAL WARNINGS LIKELY TO BE SEVERE TSTM...WITH CLOSE MONITORING FOR UPGRADE TO TORNADO BASED ON MESO TRENDS AND SPOTTER INFO. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA FPUS74 KOUN 082104 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 400 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-082200- .NOW... AT 4 PM...RADAR AND SATELLITE IMAGERY SHOWED RAPIDLY DEVELOPING THUNDERSTORMS OVER GRADY COUNTY...WITH ONE CELL NEAR POCASSET...AND ANOTHER DEVELOPING NEAR RUSH SPRINGS. THESE STORMS ARE DEVELOPING IN AN AREA WHERE CONDITIONS ARE FAVORABLE FOR RAPID INTENSIFICATION...AND WILL LIKELY BECOME SEVERE QUICKLY. IF THE STORMS DEVELOP AND INTENSIFY...AND REMAIN ON THEIR PRESENT COURSE...THEY WILL POSE A THREAT TO THE OKLAHOMA CITY METROPOLITAN AREA DURING RUSH HOUR...LIKELY BETWEEN 430 PM AND 600 PM. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON. $$ SMITH WWUS84 KOUN 082107 SPSOKC OKZ027-082115- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 406 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR GRADY COUNTY. A STRONG THUNDERSTORM WAS LOCATED 12 MILES SOUTHWEST OF POCASSET AT 406 PM CDT...MOVING NORTHEAST AT 20 MPH. THIS STORM IS INTENSIFYING AND COULD BECOME SEVERE RAPIDLY. ANOTHER STRONG THUNDERSTORM WAS LOCATED ABOUT 3 MILES NORTH NORTHWEST OF POCASSET...ALSO MOVING TO THE NORTHEAST. A TORNADO WATCH IS IN EFFECT. $$ JAMES WUUS54 KOUN 082110 SVROKC OKC051-082200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 409 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... GRADY COUNTY IN CENTRAL OKLAHOMA * UNTIL 500 PM CDT * AT 409 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 9 MILES SOUTHWEST OF POCASSET...MOVING NORTHEAST AT 35 MPH. * LOCATIONS IN THE WARNING INCLUDE POCASSET AND TUTTLE HAIL UP TO THE SIZE OF HALF DOLLARS IS LIKELY WITH THIS SEVERE THUNDERSTORM. 60 MPH WINDS ARE POSSIBLE. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO ADVANCE WARNING. MOVE IMMEDIATELY TO A STORM SHELTER... BASEMENT OR STURDY BUILDING IF A TORNADO IS SIGHTED. LAT...LON 3520 9809 3505 9809 3531 9766 3535 9786 $$ JAMES FLUS74 KOUN 082114 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 410 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS SOUTHWEST AND CENTRAL OKLAHOMA. KTLX Z DATA INDICATES DEEP CONVECTION ORGANIZING AND FIRST SVR WARNING ISSUED BASED ON Z DEPTH. INITIAL STORM MOTION PREVIOUSLY MENTION WAS TOO BACKED. NOW EXPECTING MORE OF A 240/30-35 MOTION. ALGORITHMS AND Z DEPTH/STRUCTURE POINT TOWARD HAIL IN THE 1.25 INCH RANGE ...BUT DUAL POL ZDR SUGGESTS HAILSTONES NOT YET REACHING SFC AT 410 PM. EXPECT THAT TO CHANGE WITHIN 10 MINUTES. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA WWUS84 KOUN 082115 SPSOKC OKZ024-025-029-082130- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 413 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR CANADIAN...CLEVELAND AND OKLAHOMA COUNTIES. A SEVERE THUNDERSTORM WAS LOCATED 21 MILES SOUTHWEST OF MUSTANG AT 413 PM CDT...MOVING NORTHEAST AT 35 MPH. PEOPLE IN CANADIAN...CLEVELAND AND OKLAHOMA COUNTIES...INCLUDING THE CITY OF OKLAHOMA CITY...SHOULD MONITOR THIS STORM CLOSELY. LISTEN FOR WARNINGS AND WATCH FOR THREATENING WEATHER CONDITIONS AS THIS STORM APPROACHES. $$ WUUS54 KOUN 082122 SVROKC OKC017-082200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 421 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEAST CANADIAN COUNTY IN CENTRAL OKLAHOMA * UNTIL 500 PM CDT * AT 421 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 16 MILES SOUTHWEST OF MUSTANG...MOVING NORTHEAST AT 30 MPH. * LOCATIONS IN THE WARNING INCLUDE MUSTANG HAIL UP TO THE SIZE OF HALF DOLLARS IS LIKELY WITH THIS SEVERE THUNDERSTORM. LAT...LON 3536 9793 3534 9768 3544 9767 3559 9768 $$ JAMES FPUS74 KOUN 082127 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 430 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-082200- .NOW... AT 430 PM...RADAR AND SATELLITE IMAGERY SHOWED RAPIDLY DEVELOPING THUNDERSTORMS FROM NEAR THE OKALAHOMA CITY METRO AREA SOUTHWEST INTO GRADY AND STEPHENS COUNTIES. THESE STORMS ARE DEVELOPING IN AN AREA WHERE CONDITIONS ARE FAVORABLE FOR RAPID INTENSIFICATION...AND HAVE QUICKLY BECOME SEVERE. LOCAL MESOANALYSIS SHOWS THIS IS AN AREA WHERE THERE IS SURFACE CONVERGENCE ALONG A DRY LINE WHICH RUNS NORTH TO SOUTH..FROM NEAR MEDFORD...TO HINTON...TO GRANDFIELD. THE AIRMASS TO THE EAST OF THIS DRY LINE IS VERY UNSTABLE WITH CAPES OF NEAR 5000. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON INTO THIS EVENING ACROSS MUCH OF CENTRAL AND EASTERN OKLAHOMA. $$ 30 WWUS54 KOUN 082129 SVSOKC OKC017-051-082200- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 427 PM CDT THU MAY 8 2003 ...SEVERE THUNDERSTORM WARNING CONTINUES FOR CANADIAN AND GRADY COUNTIES... AT 427 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM OVER POCASSET...MOVING NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TUTTLE AROUND 450 PM CDT MUSTANG AROUND 500 PM CDT THIS THUNDERSTORM HAS DEVELOPED A MID LEVEL CIRCULATION ABOUT 3 MILES OF POCASSET. HAIL LARGER THAN GOLF BALLS COULD BEGIN TO FALL IN THIS AREA...AND STRONG WINDS COULD BEGIN TO REACH THE SURFACE. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO ADVANCE WARNING. MOVE IMMEDIATELY TO A STORM SHELTER... BASEMENT OR STURDY BUILDING IF A TORNADO IS SIGHTED. LAT...LON 3518 9805 3509 9782 3534 9767 3553 9767 $$ JAMES FLUS74 KOUN 082130 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 426 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL OKLAHOMA. KTLX Z AND V DATA INDICATE STORM NEAR POCASSET TAKING ON SUPERCELL TRAITS WITH DEVLOPING MESO IN MID-LEVELS AND DEVELOPING MID-LEVEL Z OVERHANG ABOVE LOW-LEVEL Z GRADIENT. EXPECT HAIL SIZES TO INCREASE AND STORM TO PERHAPS TURN SLIGHTLY RIGHT NEXT HALF-HOUR. CARFEFULLY MONITORING TEMPORAL VELOCITY TRENDS. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA WFUS54 KOUN 082132 TOROKC OKC051-082215- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 433 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... GRADY COUNTY IN CENTRAL OKLAHOMA * UNTIL 515 PM CDT * AT 433 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER POCASSET...MOVING NORTHEAST AT 25 MPH. * LOCATIONS IN THE WARNING INCLUDE AMBER...POCASSET AND TUTTLE A TORNADO MAY FORM AT ANYTIME. TAKE COVER NOW. ABANDON MOBILE HOMES AND VEHICLES. IF POSSIBLE... MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE... MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS. LAT...LON 3521 9804 3510 9788 3517 9768 3532 9766 3535 9783 $$ JAMES WWUS84 KOUN 082139 SPSOKC OKZ025-028-029-082145- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 437 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR CLEVELAND...MCCLAIN AND OKLAHOMA COUNTIES. A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 19 MILES WEST OF NEWCASTLE AT 437 PM CDT...MOVING NORTHEAST AT 30 MPH. IF THE STORM CONTINUES WITH ITS CURRENT TRACK AND STRENGTH... TORNADO WARNINGS MAY REQUIRED FOR PORTIONS OF THE OKLAHOMA CITY METRO AREA... AND NORTHERN MCCLAIN COUNTY SHORTLY AFTER 5 PM. $$ CJS WWUS54 KOUN 082140 SVSOKC OKC051-082215- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 439 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR GRADY COUNTY... AT 439 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES SOUTHWEST OF TUTTLE...MOVING EAST NORTHEAST AT 20 MPH. THIS CIRCULATION ASSOCIATED WITH THIS THUNDERSTORMS CONTINUES TO DEEPEN AND INTENSIFY. A TORNADO COULD DEVELOP AT ANY TIME. PERSONS NEAR AND SOUTH OF TUTTLE...EXTENDING TOWARD BRIDGE CREEK SHOULD TAKE THEIR TORNADO PRECAUTIONS NOW! * THE TORNADO WILL BE NEAR... TUTTLE AROUND 500 PM CDT TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3526 9795 3515 9788 3519 9767 3534 9768 $$ WUUS54 KOUN 082145 SVROKC OKC109-082230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 444 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OKLAHOMA COUNTY IN CENTRAL OKLAHOMA * UNTIL 530 PM CDT * AT 444 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 3 MILES SOUTHWEST OF BETHANY...MOVING NORTHEAST AT 45 MPH. * LOCATIONS IN THE WARNING INCLUDE ARCADIA...BETHANY...DEL CITY... EDMOND...MIDWEST CITY...NICHOLS HILLS...OKLAHOMA CITY...SPENCER... THE VILLAGE...TINKER AIR FORCE BASE AND WARR ACRES HAIL UP TO THE SIZE OF GOLF BALLS AND WINDS TO 70 MPH ARE LIKELY WITH THIS SEVERE THUNDERSTORM. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO ADVANCE WARNING. MOVE IMMEDIATELY TO A STORM SHELTER... BASEMENT OR STURDY BUILDING IF A TORNADO IS SIGHTED. LAT...LON 3540 9766 3540 9740 3572 9720 3572 9765 $$ MILLER WWUS54 KOUN 082146 SVSOKC OKC051-082215- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 446 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR GRADY COUNTY... AT 446 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER TUTTLE...MOVING NORTHEAST AT 25 MPH. A TORNADO COULD FORM AT ANY TIME. * THE TORNADO WILL BE NEAR... TUTTLE AROUND 450 PM CDT IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3520 9791 3521 9767 3534 9767 3534 9781 $$ JAMES NWUS54 KOUN 082147 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 443 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0440 PM MUSTANG OK .88 INCH HAIL 05/08/03 CANADIAN REPORTED BY HAM RADIO SPOTTER WWUS84 KOUN 082148 SPSOKC OKZ025-028-029-082200- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 446 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR CLEVELAND...MCCLAIN AND OKLAHOMA COUNTIES. A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO AT ANY TIME WAS LOCATED 11 MILES WEST OF NEWCASTLE AT 446 PM CDT...MOVING NORTHEAST AT 30 MPH. THIS STORM WILL ALSO PRODUCE LARGE HAIL AND STRONG WINDS AS IT MOVES OVER NORTHERN CLEVELAND AND SOUTHERN OKLAHOMA COUNTIES. PEOPLE IN CLEVELAND...MCCLAIN AND OKLAHOMA COUNTIES...INCLUDING THE CITY OF OKLAHOMA CITY...SHOULD MONITOR THIS STORM CLOSELY. LISTEN FOR WARNINGS AND WATCH FOR THREATENING WEATHER CONDITIONS AS THIS STORM APPROACHES. $$ CJS WFUS54 KOUN 082149 TOROKC OKC027-087-109-082245- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 449 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... CLEVELAND COUNTY IN CENTRAL OKLAHOMA MCCLAIN COUNTY IN CENTRAL OKLAHOMA SOUTHERN OKLAHOMA COUNTY IN CENTRAL OKLAHOMA * UNTIL 545 PM CDT * AT 449 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES WEST OF NEWCASTLE...MOVING NORTHEAST AT 25 MPH. * LOCATIONS IN THE WARNING INCLUDE BLANCHARD...MOORE...NEWCASTLE AND TINKER AIR FORCE BASE TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3539 9767 3513 9767 3529 9739 3545 9738 $$ JAMES FLUS74 KOUN 082150 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 446 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL OKLAHOMA. KTLX Z AND V DATA INDICATE STORM NEAR TUTTLE IS CLASSIC SUPERCELL...TENDING TO INGEST SMALLER CELLS ON RIGHT FLANK. EXPECT SLIGHT RIGHT TURN IS UNDERWAY AND BWER ALOFT IS GROWING. MOVING TORNADO WARNING ACROSS METRO AREA NOW BASED ON CONTINUED ORGANIZATIONAL TRENDS IN Z/V FROM KTLX. NO BONAFIDE TVS YET...BUT AT TIMES SEE SIGNIFICANT SUBCLOUD CONVERGENCE IN ADVANCE OF RFD. THREAT OF GIANT HAIL ALSO GROWING IN SOUTHWEST METRO ALONG AND NORTH OF MESO TRACK. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA FLUS74 KOUN 082153 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 450 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL OKLAHOMA. ...UPDATE TO LAST MESSAGE...TERMINAL DOPPLER IN NORTHWEST NORMAN SHOWS STRONG SUBCLOUD CONVERGENCE...OFTEN PRECURSOR TO TORNADOGENESIS...IS BETWEEN TUTTLE AND MCCLAIN COUNTY LINE... KTLX Z AND V DATA INDICATE STORM NEAR TUTTLE IS CLASSIC SUPERCELL...TENDING TO INGEST SMALLER CELLS ON RIGHT FLANK. EXPECT SLIGHT RIGHT TURN IS UNDERWAY AND BWER ALOFT IS GROWING. MOVING TORNADO WARNING ACROSS METRO AREA NOW BASED ON CONTINUED ORGANIZATIONAL TRENDS IN Z/V FROM KTLX. NO BONAFIDE TVS YET...BUT AT TIMES SEE SIGNIFICANT SUBCLOUD CONVERGENCE IN ADVANCE OF RFD. THREAT OF GIANT HAIL ALSO GROWING IN SOUTHWEST METRO ALONG AND NORTH OF MESO TRACK. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA FLUS74 KOUN 082154 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 452 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL OKLAHOMA. ...URGENT...KTLX DEPICTS TVS NOW AT MULTIPLE ELEVATION ANGLES ON TIP OF HOOK SOUTH OF TUTTLE (3-4 MILES). KTLX Z AND V DATA INDICATE STORM NEAR TUTTLE IS CLASSIC SUPERCELL...TENDING TO INGEST SMALLER CELLS ON RIGHT FLANK. EXPECT SLIGHT RIGHT TURN IS UNDERWAY AND BWER ALOFT IS GROWING. MOVING TORNADO WARNING ACROSS METRO AREA NOW BASED ON CONTINUED ORGANIZATIONAL TRENDS IN Z/V FROM KTLX. NO BONAFIDE TVS YET...BUT AT TIMES SEE SIGNIFICANT SUBCLOUD CONVERGENCE IN ADVANCE OF RFD. THREAT OF GIANT HAIL ALSO GROWING IN SOUTHWEST METRO ALONG AND NORTH OF MESO TRACK. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA WWUS54 KOUN 082155 SVSOKC OKC027-051-087-109-082245- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 454 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR CLEVELAND...GRADY...MCCLAIN AND OKLAHOMA COUNTIES... AT 454 PM CDT...DOPPLER RADAR DETECTED A DEVELOPING TORNADO 3 MILES SOUTH OF TUTTLE...MOVING EAST NORTHEAST AT 30 MPH. * THE TORNADO WILL BE NEAR... MOORE AROUND 520 PM CDT TINKER AIR FORCE BASE AROUND 530 PM CDT PERSONS IN THE ABOVE MENTIONED AREAS SHOULD TAKE THEIR TORNADO PRECAUTIONS IMMEDIATELY! IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3533 9779 3520 9777 3524 9737 3549 9737 $$ JAMES FPUS74 KOUN 082155 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 500 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-082200- .NOW... AT 500 PM...RADAR AND SATELLITE IMAGERY CONTINUE TO SHOW A VERY SEVERE THUNDERSTORM MOVING INTO SOUTHWEST PARTS OF THE OKLAHOMA CITY METRO. LARGE HAIL...DAMAGING WINDS AND A POSSIBLE TORNADO WILL ALL BE POSSIBLE WITH THIS STORM. OTHER STORMS WERE QUICKLY DEVELOPING ACROSS SOUTHWEST OKLAHOMA NEAR MARLOW. THESE STORMS WILL LIKELY BECOME SEVERE AS WELL OVER THE 15 TO 30 MINUTES. LOCAL MESOANALYSIS SHOWS THIS IS AN AREA WHERE THERE IS SURFACE CONVERGENCE ALONG A DRY LINE WHICH RUNS NORTH TO SOUTH..FROM NEAR MEDFORD...TO HINTON...TO GRANDFIELD. THE AIRMASS TO THE EAST OF THIS DRY LINE IS VERY UNSTABLE WITH CAPES OF NEAR 5000. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON INTO THIS EVENING ACROSS MUCH OF CENTRAL AND EASTERN OKLAHOMA. $$ 30 NWUS54 KOUN 082157 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 455 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0455 PM OKLAHOMA CITY OK .88 INCH HAIL 05/08/03 OKLAHOMA REPORTED BY SPOTTER AT NWTH 10TH AND PORTLAND AVE. TY/JP WWUS84 KOUN 082158 SPSOKC OKZ027-028-039-040-082215- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 457 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR GARVIN...GRADY...MCCLAIN AND STEPHENS COUNTIES. A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTHEAST OF MARLOW AT 457 PM CDT...MOVING NORTHEAST AT 40 MPH. THE STORM WILL MOVE ACROSS THE LINDSAY... REACHING INTERSTATE 35 AND PURCELL NEAR 6 PM. THIS STORM IS INTENSIFYING AND COULD BECOME SEVERE RAPIDLY. $$ CJS WWUS54 KOUN 082201 SVSOKC OKC027-051-087-109-082245- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 459 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR CLEVELAND...GRADY...MCCLAIN AND OKLAHOMA COUNTIES... AT 459 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES EAST OF TUTTLE...MOVING NORTHEAST AT 30 MPH. THIS IS A VERY DANGEROUS SITUATION. THE CIRCULATION ASSOCIATED WITH THIS THUNDERSTORM CONTINUES TO SHOW BETTER SIGNS OF ORGANIZATION. A TORNADO COULD DEVELOP AT ANY TIME. PERSONS IN SOUTHERN PORTIONS OF THE OKLAHOMA CITY METRO AREA...INCLUDING MOORE...NEWCASTLE...AND NORTHERN NORMAN SHOULD TAKE THEIR TORNADO PRECAUTION IMMEDIATELY! * THE TORNADO WILL BE NEAR... TINKER AIR FORCE BASE AROUND 530 PM CDT MIDWEST CITY AROUND 535 PM CDT IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3555 9737 3520 9736 3519 9768 3470 9768 3470 9807 3538 9808 3533 9771 $$ JAMES FLUS74 KOUN 082202 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 500 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL OKLAHOMA. ...URGENT... STRONG COVERGENCE SIGNATURE WITH RFD AND INFLOW NOW MOVING INTO SOUTHWEST METRO WEST OF MOORE. RADAR TRENDS AND SPOTTER REPORTS POINT TOWARD VERY HIGH TORNADO POTENTIAL... NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA WWUS84 KOUN 082207 SPSOKC OKZ026-030-082215- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 506 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR LINCOLN AND POTTAWATOMIE COUNTIES. A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED NEAR NEWCASTLE...MOVING NORTHEAST AT 30 MPH. IF THIS STORM CONTINUES ITS CURRENT TRACK AND STRENGTH... WARNINGS MAY BE REQUIRED FOR NORTHERN POTTAWATOMIE AND SOUTHERN LINCOLN COUNTIES SHORTLY AFTER 530 PM. PEOPLE IN LINCOLN AND POTTAWATOMIE COUNTIES SHOULD MONITOR THIS STORM CLOSELY. LISTEN FOR WARNINGS AND WATCH FOR THREATENING WEATHER CONDITIONS AS THIS STORM APPROACHES. $$ CJS WWUS54 KOUN 082208 SVSOKC OKC027-087-109-082245- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 506 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR CLEVELAND...MCCLAIN AND OKLAHOMA COUNTIES... AT 506 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES WEST OF MOORE...MOVING NORTHEAST AT 30 MPH. * THE TORNADO WILL BE NEAR... MOORE AROUND 510 PM CDT TINKER AIR FORCE BASE AROUND 520 PM CDT CHOCTAW AROUND 535 PM CDT PERSONS ALSO IN SOUTHERN OKLAHOMA CITY...AND AREAS SOUTH OF MIDWEST CITY...AND CHOCTAW SHOULD ALSO BE PREPARED TO TAKE THEIR TORNADO PRECAUTIONS. IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3551 9725 3530 9726 3526 9753 3507 9736 3499 9736 3494 9723 3491 9701 3496 9693 3488 9693 3487 9706 3487 9767 3539 9765 $$ JAMES WWUS54 KOUN 082208 RRA SVSOKC OKC051-082215- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 506 PM CDT THU MAY 8 2003 ...TORNADO WARNING CANCELLED FOR GRADY COUNTY... AT 505 PM CDT...DOPPLER RADAR INDICATED THAT THE STORM THAT PROMPTED THE TORNADO WARNING HAS MOVED NORTHEASTWARD OUT OF GRADY COUNTY. THEREFORE... THE TORNADO WARNING THAT HAD BEEN IN EFFECT UNTIL 515 PM CDT HAS BEEN CANCELLED. ADDITIONAL THUNDERSTORMS MAY DEVELOP THROUGH 630 PM ACROSS SOUTHERN AND CENTRAL GRADY COUNTY. PERSONS SHOULD REMAIN TUNED TO THEIR FAVORITE SOURCE OF WEATHER INFORMATION THROUGH THE REMAINDER OF THE EVENING. LAT...LON 3536 9808 3487 9808 3492 9768 3533 9769 $$ MILLER NWUS54 KOUN 082211 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 458 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0455 PM OKLAHOMA CITY OK .75 INCH HAIL 05/08/03 OKLAHOMA REPORTED BY OBSERVER AT WILL ROGERS WORLD AIRPORT IN SOUTHWEST OKC WWUS54 KOUN 082212 SVSOKC OKC027-087-109-082245- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 511 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR CLEVELAND...MCCLAIN AND OKLAHOMA COUNTIES... AT 511 PM CDT...A TORNADO WAS ON THE SOUTH SIDE OF MOORE...MOVING EAST NORTHEAST OF 35 MPH. PERSONS ON THE EAST OF MOORE...AND AREAS EAST AND NORTH FROM THERE...SHOULD BE TAKING THEIR TORNADO PRECAUTIONS IMMEDIATELY! LAT...LON 3559 9725 3535 9724 3525 9757 3507 9736 3499 9736 3494 9723 3491 9701 3496 9693 3488 9693 3487 9706 3487 9767 3539 9765 $$ WWUS54 KOUN 082217 CCA SVSOKC OKC027-087-109-082245- SEVERE WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE NORMAN OK 517 PM CDT THU MAY 8 2003 ...TORNADO EMERGENCY FOR SOUTHERN AND SOUTHEAST PORTIONS OF THE OKLAHOMA CITY METRO AREA... ...TORNADO WARNING CONTINUES FOR CLEVELAND...MCCLAIN AND OKLAHOMA COUNTIES... AT 515 PM CDT...A TORNADO WAS IN THE CITY OF MOORE...MOVING EAST NORTHEAST OF 35 MPH. PERSONS ON THE EAST SIDE OF MOORE...AND AREAS EAST AND NORTH FROM THERE...SHOULD BE TAKING THEIR TORNADO PRECAUTIONS IMMEDIATELY! THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. PERSONS IN MOORE....SOUTHEAST OKLAHOMA CITY...TINKER AIR FORCE BASE...MIDWEST CITY...AND CHOCTAW...SHOULD SEEK SHELTER IN A BASEMENT... SAFE ROOM... OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR NOW TO PROTECT YOUR LIFE! LAT...LON 3559 9725 3535 9724 3525 9757 3507 9736 3499 9736 3494 9723 3491 9701 3496 9693 3488 9693 3487 9706 3487 9767 3539 9765 $$ JAMES NWUS54 KOUN 082215 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 512 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0510 PM MOORE OK TORNADO 05/08/03 CLEVELAND TORNADO ON GROUND ON SOUTH SIDE OF MOORE. HWY 37 & WESTERN WWUS54 KOUN 082221 SVSOKC OKC027-109-082245- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 519 PM CDT THU MAY 8 2003 ...TORNADO EMERGENCY FOR SOUTHERN AND SOUTHEAST PORTIONS OF THE OKLAHOMA CITY METRO AREA... AT 519 PM CDT...A LARGE... AND POSSIBLY VIOLENT TORNADO WAS LOCATED 5 MILES SOUTH OF DEL CITY...MOVING NORTHEAST AT 35 MPH. TINKER AIR FORCE BASE IS IN THE IMMEDIATE PATH OF THIS TORNADO. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. PERSONS IN SOUTHEAST OKLAHOMA CITY...TINKER AIR FORCE BASE...MIDWEST CITY...CHOCTAW...AND HARRAH...SHOULD SEEK SHELTER IN A BASEMENT... SAFE ROOM... OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR NOW TO PROTECT YOUR LIFE! IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3544 9758 3532 9746 3538 9714 3561 9715 $$ JAMES WWUS84 KOUN 082221 SPSOKC OKZ026-030-082230- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 519 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR LINCOLN AND POTTAWATOMIE COUNTIES. A THUNDERSTORM PRODUCING A TORNADO WAS LOCATED IN THE EAST PART OF MOORE... MOVING EAST AT 30 MPH. IF THIS STORM CONTINUES IT'S CURRENT SPEED AND STRENGTH... TORNADO WARNINGS MAY BE REQUIRED FOR SOUTHERN LINCOLN AND NORTHERN POTTAWATOMIE COUNTIES BEFORE 6 PM. PEOPLE IN LINCOLN AND POTTAWATOMIE COUNTIES SHOULD MONITOR THIS STORM CLOSELY. LISTEN FOR WARNINGS AND WATCH FOR THREATENING WEATHER CONDITIONS AS THIS STORM APPROACHES...AND BE PREPARED TO TAKE SHELTER. $$ CJS WWUS54 KOUN 082226 SVSOKC OKC027-109-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 523 PM CDT THU MAY 8 2003 ...TORNADO EMERGENCY FOR SOUTHERN AND SOUTHEAST PORTIONS OF THE OKLAHOMA CITY METRO AREA...INCLUDING TINKER AIR FORCE BASE...MIDWEST CITY...AND CHOCTAW... AT 523 PM...A LARGE AND VIOLENT TORNADO WAS LOCATED NEAR THE GENERAL MOTORS PLANT IN SOUTHEAST OKLAHOMA CITY. TAKE YOUR TORNADO PRECAUTIONS NOW! THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. PERSONS IN SOUTHEAST OKLAHOMA CITY...TINKER AIR FORCE BASE...MIDWEST CITY...CHOCTAW...AND HARRAH...SHOULD SEEK SHELTER IN A BASEMENT... SAFE ROOM... OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR NOW TO PROTECT YOUR LIFE! IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3561 9716 3495 9714 3499 9734 3507 9734 3525 9755 3538 9767 3538 9749 3546 9748 $$ JAMES WWUS84 KOUN 082230 SPSOKC OKZ026-030-082245- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 526 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR LINCOLN AND POTTAWATOMIE COUNTIES. A THUNDERSTORM PRODUCING A TORNADO IN THE EAST PART OF OKLAHOMA CITY AT 526 PM CDT...WAS MOVING EAST NORTHEAST AT 35 MPH. THIS DANGEROUS TORNADO WAS PRODUCING DAMAGE. TORNADO WARNINGS WILL LIKELY BE REQUIRED FOR LINCOLN AND NORTHERN POTTTAWATOMIE COUNTIES BEFORE 6 PM. PEOPLE IN LINCOLN AND POTTAWATOMIE COUNTIES...ESPECIALLY IN THE COMMUNITIES OF MCCLOUD AND MEEKER... SHOULD CONSIDER SEEKING SHELTER. $$ CJS WFUS54 KOUN 082231 TOROKC OKC081-125-082345- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 529 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... LINCOLN COUNTY IN CENTRAL OKLAHOMA POTTAWATOMIE COUNTY IN CENTRAL OKLAHOMA * UNTIL 630 PM CDT * AT 529 PM CDT...A LARGE...AND VIOLENT TORNADO WAS LOCATED JUST EAST OF THE GENERAL MOTORS PLANT IN SOUTHEAST OKLAHOMA CITY...MOVING EAST AT 35 MPH. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS. IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3555 9714 3530 9713 3531 9679 3565 9677 $$ JAMES WUUS54 KOUN 082232 SVROKC OKC047-103-082315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 531 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... GARFIELD COUNTY IN NORTHERN OKLAHOMA NOBLE COUNTY IN NORTHERN OKLAHOMA * UNTIL 615 PM CDT * AT 531 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 4 MILES SOUTHEAST OF COVINGTON...MOVING NORTHEAST AT 35 MPH. * LOCATIONS IN THE WARNING INCLUDE BILLINGS...COVINGTON...DOUGLAS... GARBER...LUCIEN...MARLAND...PERRY AND RED ROCK HAIL UP TO THE SIZE OF GOLF BALLS AND WINDS TO 75 MPH ARE LIKELY WITH THIS SEVERE THUNDERSTORM. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO ADVANCE WARNING. MOVE IMMEDIATELY TO A STORM SHELTER... BASEMENT OR STURDY BUILDING IF A TORNADO IS SIGHTED. LAT...LON 3618 9773 3617 9727 3657 9701 3660 9757 $$ MILLER FPUS74 KOUN 082232 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 530 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-082300- .NOW... AT 530 PM...RADAR AND SATELLITE IMAGERY CONTINUE TO SHOW A TORNADIC THUNDERSTORM MOVING EAST ACROSS SOUTHEAST PARTS OF THE OKLAHOMA CITY METRO AREA THROUGH MIDWEST CITY...DEL CITY AND CHOCTAW AREAS. A TORNADO ALONG WITH VERY LARGE HAIL WILL ACCOMPANY THIS STORM. OTHER ISOLATED THUNDERSTORMS WERE DEVELOPING ALONG A DRY LINE FROM SOUTH CENTRAL KANSAS SOUTH ACROSS NORTH CENTRAL OKLAHOMA AND INTO CENTRAL AND SOUTHERN OKLAHOMA. LOCAL MESOANALYSIS SHOWS THIS IS AN AREA WHERE THERE IS SURFACE CONVERGENCE ALONG A DRY LINE WHICH RUNS NORTH TO SOUTH..FROM NEAR MEDFORD...TO HINTON...TO GRANDFIELD. THE AIRMASS TO THE EAST OF THIS DRY LINE IS VERY UNSTABLE WITH CAPES OF NEAR 5000. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON INTO THIS EVENING ACROSS MUCH OF CENTRAL AND EASTERN OKLAHOMA. $$ 30 WWUS54 KOUN 082236 SVSOKC OKC027-109-082245- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 533 PM CDT THU MAY 8 2003 ...TORNADO EMERGENCY FOR SOUTHERN AND SOUTHEAST PORTIONS OF THE OKLAHOMA CITY METRO AREA...INCLUDING TINKER AIR FORCE BASE...MIDWEST CITY...AND CHOCTAW... AT 533 PM CDT...A LARGE AND VIOLENT TORNADO WAS LOCATED OVER SOUTHEAST MIDWEST CITY...MOVING NORTHEAST AT 35 MPH. HOMES AND OTHER LARGE STRUCTURES HAVE ALREADY FLATTENED BY THIS TORNADO IN SOUTHEAST PORTIONS OF OKLAHOMA CITY. THIS IS A DEADLY SITUATION. PERSONS IN SOTUHEAST MIDWEST CITY...TOWARD SOUTHERN PORTIONS OF CHOCTAW...AND AREAS SOUTH OF HARRAH...SHOULD SEEK SHELTER IN A BASEMENT... SAFE ROOM... OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR NOW TO PROTECT YOUR LIFE! TAKE ACTION NOW! IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3565 9714 3495 9714 3499 9734 3507 9734 3538 9767 3538 9739 3549 9742 $$ JAMES WWUS64 KOUN 082239 SLSOK BULLETIN - IMMEDIATE BROADCAST REQUESTED AREAL OUTLINE FOR TORNADO WATCH NUMBER 311 NATIONAL WEATHER SERVICE NORMAN OK 539 PM CDT THU MAY 8 2003 TORNADO WATCH NUMBER 311 IN EFFECT UNTIL 1100 PM CDT. IN OKLAHOMA THIS WATCH INCLUDES 21 COUNTIES... OKC021-101-135-090400- IN EAST CENTRAL OKLAHOMA THIS WATCH INCLUDES 3 COUNTIES... CHEROKEE MUSKOGEE SEQUOYAH $$ OKC001-035-041-097-105-111-115-131-143-145-147-090400- IN NORTHEAST OKLAHOMA THIS WATCH INCLUDES 11 COUNTIES... ADAIR CRAIG DELAWARE MAYES NOWATA OKMULGEE OTTAWA ROGERS TULSA WAGONER WASHINGTON $$ OKC029-061-063-077-079-091-121-090400- IN SOUTHEAST OKLAHOMA THIS WATCH INCLUDES 7 COUNTIES... COAL HASKELL HUGHES LATIMER LE FLORE MCINTOSH PITTSBURG $$ WFUS54 KOUN 082244 TOROKC OKC109-082300- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 542 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... EASTERN OKLAHOMA COUNTY IN CENTRAL OKLAHOMA * UNTIL 615 PM CDT * AT 542 PM CDT...A LARGE... VIOLENT TORNADO WAS LOCATED 4 MILES SOUTH OF HARRAH...MOVING NORTHEAST AT 25 MPH. * LOCATIONS IN THE WARNING INCLUDE CHOCTAW...HARRAH...JONES...LUTHER AND NICOMA PARK. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS. IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3551 9737 3543 9725 3552 9714 3571 9715 $$ JAMES WWUS54 KOUN 082248 SVSOKC OKC081-125-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 547 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN AND POTTAWATOMIE COUNTIES... AT 547 PM CDT...A LARGE... VIOLENT TORNADO WAS LOCATED NEAR HARRAH IN SOUTHEAST OKLAHOMA COUNTY...MOVING EAST NORTHEAST AT 30 MPH. NUMEROUS HOMES AND OTHER LARGE STRUCTURES HAVE BEEN FLATTENED BY THIS TORNADO IN SOUTHEAST OKLAHOMA CITY. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS. IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3557 9715 3536 9714 3544 9665 3567 9667 $$ JAMES WUUS54 KOUN 082251 SVROKC OKC071-082330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 550 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... KAY COUNTY IN NORTHERN OKLAHOMA * UNTIL 630 PM CDT * AT 550 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 8 MILES SOUTH OF TONKAWA...MOVING NORTHEAST AT 35 MPH. * LOCATIONS IN THE WARNING INCLUDE BLACKWELL...CHILOCCO...HARDY... KILDARE...NEWKIRK...PONCA CITY AND TONKAWA HAIL UP TO THE SIZE OF GOLF BALLS AND WINDS TO 70 MPH ARE LIKELY WITH THIS SEVERE THUNDERSTORM. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO ADVANCE WARNING. MOVE IMMEDIATELY TO A STORM SHELTER... BASEMENT OR STURDY BUILDING IF A TORNADO IS SIGHTED. LAT...LON 3658 9742 3659 9707 3698 9677 3701 9720 $$ MILLER WWUS54 KOUN 082255 SVSOKC OKC081-125-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 551 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN AND POTTAWATOMIE COUNTIES... AT 551 PM CDT...A TORNADO WAS REPORTED NEAR MIDWAY IN SOUTHWEST LINCOLN COUNTY...MOVING EAST NORTHEAST AT 30 MPH. NUMEROUS HOMES AND OTHER LARGE STRUCTURES HAVE ALREADY BEEN FLATTENED BY THIS TORNADO IN SOUTHEAST OKLAHOMA CITY. THIS TORNADO WILL TRACK TO NEAR JACKTOWN BY 610 PM...THEN TO NEAR SPARKS BY 625 PM. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS. IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3559 9714 3540 9714 3550 9665 3571 9674 $$ JAMES WFUS54 KOUN 082255 TOROKC OKC103-082345- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 554 PM CDT THU MAY 8 2003 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... NOBLE COUNTY IN NORTHERN OKLAHOMA * UNTIL 645 PM CDT * AT 553 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PORTION OF THE STORM WAS LOCATED 5 MILES NORTH OF PERRY...MOVING NORTHEAST AT 40 MPH. * LOCATIONS IN THE WARNING INCLUDE MARLAND...PERRY AND RED ROCK TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3642 9741 3620 9739 3631 9702 3659 9704 3659 9721 $$ MILLER WWUS54 KOUN 082259 SVSOKC OKC047-082315- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 559 PM CDT THU MAY 8 2003 ...SEVERE THUNDERSTORM WARNING CANCELLED FOR GARFIELD COUNTY... AT 558 PM CDT...DOPPLER RADAR INDICATED THAT THE STORM THAT PROMPTED THE WARNING HAD MOVED NORTHEASTWARD OUT OF GARFIELD COUNTY. THEREFORE... THE SEVERE THUNDERSTORM WARNING THAT WAS IN EFFECT UNTIL 615 PM CDT HAS BEEN CANCELLED. LAT...LON 3656 9789 3619 9786 3619 9747 3657 9747 $$ MILLER WWUS54 KOUN 082303 SVSOKC OKC081-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 601 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN COUNTY... AT 601 PM CDT...A TORNADO WAS REPORTED NEAR JACKTOWN IN SOUTHWEST LINCOLN COUNTY...MOVING EAST NORTHEAST AT 30 MPH. THIS TORNADO WILL TRACK BETWEEN MEEKER AND SPARKS THROUGH 630 PM. PERSONS NEAR PAYSONS SHOULD TAKE COVER NOW! THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS. IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3559 9708 3541 9700 3548 9662 3573 9664 $$ WWUS54 KOUN 082305 SVSOKC OKC071-082330- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 603 PM CDT THU MAY 8 2003 ...SEVERE THUNDERSTORM WARNING CONTINUES FOR KAY COUNTY UNTIL 630 PM CDT... AT 602 PM CDT...DOPPLER RADAR INDICATED A LARGE SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF PONCA CITY...MOVING NORTHEAST AT 45 MPH. HAIL UP TO THE SIZE OF GOLF BALLS AND WIND GUSTS UP TO 70 MPH ARE LIKELY WITH THIS SEVERE THUNDERSTORM. THIS STORM WILL AFFECT PONCA CITY... TONKAWA... KILDARE AND NEWKIRK THROUGH 630 PM. LAT...LON 3661 9730 3659 9706 3697 9675 3699 9716 $$ MILLER NWUS54 KOUN 082305 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 601 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0529 PM OKLAHOMA OK WIND DAMAGE 05/08/03 OKLAHOMA 240 WESTBOUND JUST WEST OF AIR DEPOT. POWER LINES DOWN. REPORTED BY SPOTTER 0528 PM OKLAHOMA CITY OK .75 INCH HAIL 05/08/03 OKLAHOMA 44 & CENTER REPORTED BY SPOTTER WWUS54 KOUN 082306 SVSOKC OKC125-082315- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 604 PM CDT THU MAY 8 2003 ...TORNADO WARNING CANCELLED FOR POTTAWATOMIE COUNTY... AT 604 PM CDT...THE TORNADO PRODUCING THUNDERSTORM THAT AFFECTING EXTREME NORTHWEST POTTAWATOMIE COUNTY EARLIER...HAD MOVED NORTH OF THE AREA. THIS THUNDERSTORM WILL NO LONGER AFFECT YOUR AREA. A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA...AND ADDITIONAL THUNDERSTORMS COULD STILL DEVELOP. LAT...LON 3538 9714 3523 9698 3539 9679 3538 9706 $$ JAMES WWUS84 KOUN 082307 SPSOKC OKZ019-020-082315- SIGNIFICANT WEATHER ADVISORY NATIONAL WEATHER SERVICE NORMAN OK 606 PM CDT THU MAY 8 2003 THIS SIGNIFICANT WEATHER ADVISORY IS FOR LOGAN AND PAYNE COUNTIES. A LINE OF STRONG THUNDERSTORMS OVER NOBLE COUNTY MAY CONTINUE TO DEVELOP SOUTH INTO NORTHERN LOGAN COUNTY THROUGH 630 PM. IF STORMS DO DEVELOP INTO LOGAN COUNTY... THEY WILL THEN MOVE INTO PAYNE COUNTY. ANY STORMS THAT DEVELOP COULD RAPIDLY BECOME SEVERE. $$ CJS FPUS74 KOUN 082310 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 615 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-090000- .NOW... AT 615 PM...RADAR AND SATELLITE IMAGERY CONTINUE TO SHOW A TORNADIC THUNDERSTORM MOVING EAST SOUTHERN LINCOLN COUNTY. ANOTHER SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED ACROSS NORTHERN OKLAHOMA...MOVING NORTHEAST THROUGH NOBLE COUNTY. LOCAL MESOANALYSIS SHOWS THESE THUNDERSTORMS FORMED ALONG A DRY LINE...WHICH IS LOCATED FROM JUST EAST OF MEDFORD SOUTH INTO CENTRAL OKLAHOMA NEAR EL RENO SOUTH TO LAWTON AND WICHITA FALLS. THE AIRMASS TO THE EAST OF THIS DRY LINE IS VERY UNSTABLE WITH CAPES OF NEAR 5000 WITH SURFACE TEMPERATURES IN THE LOW TO MID 80S AND DEWPOINTS IN THE LOW 70S. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON INTO THIS EVENING ACROSS MUCH OF CENTRAL AND EASTERN OKLAHOMA. $$ 30 WWUS54 KOUN 082310 SVSOKC OKC081-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 609 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN COUNTY... AT 609 PM CDT...A ROTATING WALL CLOUD WAS REPORTED 4 MILES NORTH OF MEEKER AND 1 MILE WEST OF MEEKER...MOVING EAST NORTHEAST AT 35 MPH. THIS THUNDERSTORM HAS A HISTORY OF PRODUCING TORNADOES. A TORNADO MAY FORM AT ANYTIME. TAKE COVER NOW. ABANDON MOBILE HOMES AND VEHICLES. IF POSSIBLE... MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE... MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS. PERSONS BETWEEN MEEKER...SPARKS...AND PRAGUE SHOULD TAKE THEIR TORNADO PRECAUTION NOW! IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. LAT...LON 3560 9701 3547 9696 3548 9662 3570 9662 $$ JAMES FLUS74 KOUN 082313 AWUOKC WARNING DECISION UPDATE NATIONAL WEATHER SERVICE NORMAN OK 610 PM CDT THU MAY 8 2003 THIS WARNING DECISION UPDATE CONCERNS CENTRAL AND NORTHERN OKLAHOMA. ...URGENT... CLASSIC SUPERCELL PRODUCING TORNADO FAMILY NOW TRACKING ALONG AND SOUTH OF I44 IN LINCOLN COUNTY. KTLX Z/V INDICATES UPDRAFT AGAIN REORGANIZING ON RIGHT FLANK NEAR SPARKS. CLUSTER OF STORMS IN NOBLE COUNTY LESS ORGANIZED THAN LINCOLN CO. STORM...BUT SPOTTER REPORTS AND MESO TRENDS SUGGEST HIGH TORNADO THREAT RED ROCK EAST. NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION EXCHANGE ON THE STORM SCALE. $$ ANDRA WWUS54 KOUN 082314 SVSOKC OKC103-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 612 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR NOBLE COUNTY UNTIL 645 PM CDT... AT 609 PM CDT...OKALHOMA HIGHWAY PATROL REPORTED A TORNADO ON THE GROUND IN RED ROCK... MOVING NORTHEAST AT 35 MPH. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION! PERSONS RED ROCK... MARLAND AND ALONG AND EAST OF HIGHWAY 177 SHOULD SEEK SHELTER IMMEDIATELY TO PROTECT YOUR LIFE!. HAIL UP TO THE SIZE OF BASEBALLS IS ALSO LIKELY WITH THIS SEVERE THUNDERSTORM. LAT...LON 3653 9740 3619 9738 3630 9701 3660 9706 $$ MILLER NWUS54 KOUN 082314 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 613 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0610 PM RED ROCK OK TORNADO 05/08/03 NOBLE TORNADO ON GROUND. REPORTED BY OHP WWUS54 KOUN 082319 SVSOKC OKC081-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 616 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN COUNTY... AT 616 PM CDT...A LARGE ROTATING THUNDERSTORM WITH A HISTORY OF PRODUCING TORNADOES...WAS LOCATED 4 MILES NORTH NORTHEAST OF MEEKER...MOVING EAST NORTHEAST AT 35 MPH. ANOTHER THUNDERSTORM WAS TRYING TO DEVELOP ABOUT 6 MILES NORTHWEST OF PRAGUE. A TORNADO COULD DEVELOP AT ANY TIME. PERSONS BETWEEN MEEKER...SPARKS...AND PRAGUE...SHOULD TAKE THEIR TORNADO PRECAUTIONS NOW! LAT...LON 3564 9699 3548 9690 3549 9662 3577 9662 $$ JAMES WWUS54 KOUN 082323 SVSOKC OKC103-090000- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 622 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR NOBLE COUNTY UNTIL 645 PM CDT... AT 621 PM CDT...STATE TROOPERS REPORTED THAT THE TORNADO NEAR RED ROCK HAD DISSIPATED. HOWEVER... THE THUNDERSTORM CONTINUES TO EXHIBIT STRONG ROTATION AND ADDITIONAL TORNADOES ARE EXPECTED OVER THE EASTERN SECTIONS OF NOBLE COUNTY TROUGH 645 PM. PERSONS ALONG AND EAST OF HIGHWAY 177 IN NORTEAST NOBLE COUNTY SHOULD REMAIN IN THEIR TORNADO SHELTERING AREAS! HAIL UP TO THE SIZE OF BASEBALLS IS ALSO LIKELY WITH THIS SEVERE THUNDERSTORM. LAT...LON 3657 9723 3629 9716 3657 9691 3659 9707 $$ MILLER WWUS54 KOUN 082325 SVSOKC OKC081-092345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 623 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN COUNTY... AT 623 PM CDT...DOPPLER RADAR DETECTED A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTHEAST OF SPARKS...MOVING EAST NORTHEAST AT 35 MPH. A TORNADO COULD DEVELOP ANY TIME. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION! PERSONS NORTH OF PRAGUE...TO BETWEEN SPARKS AND STATE ROUTE 99... SHOULD SEEK SHELTER IMMEDIATELY!. LAT...LON 3566 9687 3555 9682 3555 9661 3575 9662 $$ JAMES WWUS54 KOUN 082329 RRA SVSOKC OKC081-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 628 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN COUNTY... AT 628 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES SOUTHEAST OF SPARKS...MOVING EAST NORTHEAST AT 30 MPH. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION! PERSONS NORTH OF PRAGUE...TO BETWEEN SPARKS AND STATE ROUTE 99... SHOULD SEEK SHELTER IMMEDIATELY! LAT...LON 3565 9681 3553 9675 3556 9662 3573 9662 $$ JAMES FPUS74 KOUN 082329 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 630 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-090000- .NOW... AT 630 PM...RADAR AND SATELLITE IMAGERY CONTINUE TO SHOW A TORNADIC THUNDERSTORM MOVING EAST ACROSS EASTERN LINCOLN COUNTY. ANOTHER TORNADIC THUNDERSTORM WAS MOVING NORTHEAST OUT OF NORTHEAST NOBLE COUNTY. LOCAL MESOANALYSIS SHOWS THESE THUNDERSTORMS FORMED ALONG A DRY LINE...WHICH IS LOCATED FROM JUST EAST OF MEDFORD SOUTH INTO CENTRAL OKLAHOMA NEAR EL RENO SOUTH TO LAWTON AND WICHITA FALLS. THE AIRMASS TO THE EAST OF THIS DRY LINE IS VERY UNSTABLE WITH CAPES OF NEAR 5000 WITH SURFACE TEMPERATURES IN THE LOW TO MID 80S AND DEWPOINTS IN THE LOW 70S. IN SUPPORT OF RESCUE ACITIVITIES IN CENTRAL OKLAHOMA THERE REMAINS A THREAT FOR ADDITIONAL THUNDERSTORM ACTIVITY TO DEVELOP ALONG THE DRY LINE AND MOVE BACK INTO THE OKLAHOMA CITY METRO AREA LATER THIS EVENING. SATELLITE ALSO SHOWS SOME ENHANCED CUMULUS CLOUDS DEVELOPING ACROSS PORTIONS OF NORTH TEXAS ALONG THE DRY LINE TO THE SOUTH OF WICHITA FALLS. THUNDERSTORMS COULD DEVELOP IN THIS AREA OVER THE NEXT ONE TO TWO HOURS. ANY THUNDERSTORMS THAT DO DEVELOP WILL HAVE THE POTENTIAL TO QUICKLY BECOME SEVERE. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON INTO THIS EVENING ACROSS MUCH OF CENTRAL AND EASTERN OKLAHOMA. $$ 30 WWUS54 KOUN 082334 SVSOKC OKC071-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 634 PM CDT THU MAY 8 2003 ...SEVERE THUNDERSTORM WARNING FOR KAY COUNTY ALLOWED TO EXPIRE AT 630 PM CDT... AT 630 PM CDT...DOPPLER RADAR INDICATED THAT THE STORM THAT PROMPTED THE WARNING HAD MOVED NORTHEAST... OUT OF KAY COUNTY. THEREFORE... THE SEVERE THUNDERSTORM WARNING FOR KAY COUNTY HAS BEEN ALLOWED TO EXPIRE AS SCHEDULED AT 630 PM CDT. ANOTHER SEVERE THUNDERSTORM WILL STAY JUST TO THE SOUTH OF SOUTHEAST KAY COUNTY THROUGH 7 PM. AREAS FROM PONCA CITY... EASTWARD TO KAW LAKE CAN EXPECT HEAVY DOWNPOURS... SMALL HAIL AND FREQUENT LIGHTNING THROUGH 7 PM. LAT...LON 3699 9716 3662 9723 3681 9677 3699 9677 $$ MILLER WWUS54 KOUN 082338 SVSOKC OKC081-082345- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 637 PM CDT THU MAY 8 2003 ...TORNADO WARNING CONTINUES FOR LINCOLN COUNTY... AT 637 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO ABOUT 5 MILES SOUTH OF STROUD...MOVING EAST NORTHEAST AT 35 MPH. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION! PERSONS IN EXTREME EASTERN LINCOLN COUNTY...BETWEEN PRAGUE...AND STROUD...AND EAST OF STATE HIGHWAY 99...SHOULD SEEK SHELTER IMMEDIATELY! LAT...LON 3571 9676 3560 9668 3561 9662 3578 9662 $$ JAMES WWUS54 KOUN 082345 SVSOKC OKC103-090000- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 644 PM CDT THU MAY 8 2003 ...TORNADO WARNING FOR NOBLE COUNTY WILL BE ALLOWED TO EXPIRE AS SCHEDULED AT 645 PM CDT... AT 642 PM CDT...DOPPLER RADAR INDICATED THAT THE TORNADIC THUNDERSTORM THAT PROMPTED THE WARNING HAD MOVED NORTHEAST INTO OSAGE COUNTY. THEREFORE... THE TORNADO WARNING FOR NOBLE COUNTY WILL BE ALLOWED TO EXPIRE AT 645 PM. LAT...LON 3654 9739 3620 9730 3628 9695 3660 9704 $$ MILLER WWUS54 KOUN 082346 SVSOKC OKC081-092350- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 645 PM CDT THU MAY 8 2003 ...TORNADO WARNING HAS EXPIRED FOR LINCOLN COUNTY... AT 645 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO ON THE LINCOLN...CREEK COUNTY LINE...MOVING EAST NORTHEAST AT 30 MPH. THE STORM HAS MOVED OUT LINCOLN COUNTY. LAT...LON 3595 9662 3548 9661 3548 9712 3594 9714 $$ JAMES NWUS54 KOUN 082355 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 653 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0459 PM OKLAHOMA CITY OK .75 INCH HAIL 05/08/03 OKLAHOMA REPORTED BY OKLAHOMA CITY ASOS. TY NWUS54 KOUN 090006 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 704 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0555 PM PONCA CITY OK 1.00 INCH HAIL 05/08/03 KAY REPORTED BY PUBLIC. 0600 PM PONCA CITY OK 1.25 INCH HAIL 05/08/03 KAY REPORTED BY KAY COUNTY EM. TY/JP FPUS74 KOUN 090008 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 710 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-090045- .NOW... AT 710 PM...SATELLITE IMAGERY SHOWS TOWERING CUMULUS CLOUDS DEVELOPING ACROSS PORTIONS OF CENTRAL OKLAHOMA FROM SOUTHERN LOGAN COUNTY SOUTHWEST INTO CANADIAN COUNTY. THERE IS THE POSSIBILITY OF ADDITIONAL THUNDERSTORM DEVELOPMENT IN THIS AREA OVER THE NEXT ONE TO TWO HOURS. LOCAL MESOANALYSIS SHOWS THESE CLOUDS WERE DEVELOPING ALONG A DRY LINE...WHICH IS LOCATED FROM JUST EAST OF MEDFORD SOUTH INTO CENTRAL OKLAHOMA NEAR EL RENO SOUTH TO LAWTON AND WICHITA FALLS. THE AIRMASS TO THE EAST OF THIS DRY LINE IS VERY UNSTABLE WITH CAPES OF NEAR 5000 WITH SURFACE TEMPERATURES IN THE LOW TO MID 80S AND DEWPOINTS IN THE LOW 70S. IN SUPPORT OF RESCUE ACITIVITIES IN CENTRAL OKLAHOMA THERE REMAINS A THREAT FOR ADDITIONAL THUNDERSTORM ACTIVITY TO DEVELOP ALONG THE DRY LINE AND MOVE BACK INTO THE OKLAHOMA CITY METRO AREA LATER THIS EVENING. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON INTO THIS EVENING ACROSS MUCH OF CENTRAL AND EASTERN OKLAHOMA. $$ 30 FPUS74 KOUN 090028 NOWOKC REGIONAL WEATHER DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 730 PM CDT THU MAY 8 2003 OKZ004>048-050>052-TXZ083>090-090100- .NOW... AT 730 PM...SATELLITE IMAGERY SHOWS TOWERING CUMULUS CLOUDS DEVELOPING ACROSS PORTIONS OF CENTRAL OKLAHOMA FROM THE OKLAHOMA CLEVELAND COUNTY LINE SOUTHWEST THROUGH NORTHERN MCCLAIN SOUTHWEST TO NEAR CHICKASHA. THERE IS THE POSSIBILITY OF ADDITIONAL THUNDERSTORM DEVELOPMENT IN THIS AREA OVER THE NEXT ONE TO TWO HOURS. LOCAL MESOANALYSIS SHOWS THESE CLOUDS WERE DEVELOPING ALONG A DRY LINE...WHICH IS LOCATED FROM JUST EAST OF MEDFORD SOUTH INTO CENTRAL OKLAHOMA NEAR EL RENO SOUTH TO LAWTON AND WICHITA FALLS. THE AIRMASS TO THE EAST OF THIS DRY LINE IS VERY UNSTABLE WITH CAPES OF NEAR 5000 WITH SURFACE TEMPERATURES IN THE LOW TO MID 80S AND DEWPOINTS IN THE LOW 70S. IN SUPPORT OF RESCUE ACITIVITIES IN CENTRAL OKLAHOMA THERE REMAINS A THREAT FOR ADDITIONAL THUNDERSTORM ACTIVITY TO DEVELOP ALONG THE DRY LINE AND MOVE BACK INTO THE OKLAHOMA CITY METRO AREA LATER THIS EVENING. CONDITIONS REMAIN FAVORABLE FOR TORNADIC SUPERCELLS THIS AFTERNNOON INTO THIS EVENING ACROSS MUCH OF CENTRAL AND EASTERN OKLAHOMA. $$ 30 NWUS54 KOUN 090100 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 737 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0517 PM OKLAHOMA CITY OK TORNADO 05/08/03 OKLAHOMA TORNADO ON GROUND AT HWY 77 & 240, REPORTED BY HAM RADIO SPOTTER 0550 PM 4 S HARRAH OK TORNADO 05/08/03 OKLAHOMA TORNADO ON GROUND. REPORTED BY HAM RADIO SPOTTER 0600 PM 1 N JACKTOWN OK TORNADO 05/08/03 LINCOLN TORNADO ON GROUND. REPORTED BY HAM RADIO SPOTTER 0545 PM MCCLOUD OK TORNADO 05/08/03 POTTAWATOMIE MULTIPLE VORTEX TORNADO ON GROUND. REPORTED BY HAM RADIO SPOTTER 0530 PM MIDWEST CITY OK TORNADO ON GROUND 05/08/03 OKLAHOMA MULTIPLE HOUSES HEAVILY DAMAGED, POWER LINES DOWNED. DAMAGE REPORTED BY NWS EL TECH. FXUS64 KOUN 090056 AFDOKC AREA FORECAST DISCUSSION...UPDATED... NATIONAL WEATHER SERVICE NORMAN OK 800 PM CDT THU MAY 8 2003 OVERALL AFTN FORECAST IN GOOD SHAPE. WILL SEND A QUICK UPDATE TO MAKE SOME MINOR CHANGES TO POPS AND WINDS. DRY LINE REMAINS TO THE WEST OF THE OKC METRO AND THERE HAVE BEEN PERIODIC ATTEMPTS TO GET SOME TOWERING CU TO GO ON THE DRY LINE. TO OUR SOUTH THERE ARE SOME STORMS GOING ON THE DRY LINE IN NORTH TEXAS SO WILL KEEP POPS GOING FOR AREAS TO THE EAST OF DRY LINE FOR REMAINDER OF EVENING WITH SEVERE WORDING IN ZONES. UPDATES OUT SHORTLY. 30 --------------------------------------------------- 334 PM CDT THU MAY 8 2003 UPDATED TO ISSUE WIND ADVISORY FOR NW OK FROM 4 UNTIL 7 PM THIS EVENING. REMAINDER OF FORECAST REASONING REMAINS UNCHANGED. MILLER .OUN... OK...WIND ADVISORY UNTIL 7 PM THIS EVENING OKZ004-005-009-010. TX...NONE. **************************** 219 PM CDT THUS MAY 8 2003 ...POTENTIAL FOR A SIGNIFICANT SEVERE WEATHER OUTBREAK INCLUDING SUPERCELLS AND TORNADOES ACROSS THE CENTRAL THIRD OF OKLAHOMA DURING THE NEXT 3-9 HOURS... MID/UPPER LEVEL TROF AND SFC LOW CONT TO RAPIDLY DEEPEN OVER WRN KS/ERN CO EARLY THIS AFTERNOON.. AND THERE IS SUBTLE EVIDENCE OF A SECONDARY IMPULSE PUSHING EWD ACROSS NEW MEXICO. 18Z OUN SOUNDING INDICATES THAT CAPPING IS MUCH WEAKER THAN PREVIOUSLY EXPECTED ALONG DRYLINE ACROSS MOST OF OKLAHOMA. POTENT THERMODYNAMIC PROFILE IS EVIDENT WITH VERY HIGH BOUNDARY LAYER MOISTURE CONTENT.. LOW LCL HGHTS AND STEEP MID LEVEL LAPSE RATES. IN ADDITION..THE HODOGRAPH SHOWS SIGNIFICANT LOW LEVEL AND DEEP LAYER SHEAR IN PLACE.. HILITED BY A DISTINCT KINK IN THE HODOGRAPH AT ABOUT 1.5 KM AGL. THIS TYPE OF LOW LEVEL SHEAR PROFILE IN COMBINATION WITH ABOVE MENTIONED THERMODYNAMICS HAS OFTEN BEEN ASSOCIATED WITH ENVIRONMENTS SUPPORTIVE OF LONG LIVED STRONG/VIOLENT TORNADOES. EXPECT INITIATION INVOF THE DRYLINE WITHIN THE NEXT COUPLE HOURS WITH SUPERCELL DEVELOPMENT LIKELY. SVR THREAT WILL LIKELY CONTINUE WELL INTO THE NITE AS STRONG UVVS CONT ALONG DRYLINE UNTIL AT LEAST 06Z ACROSS MUCH OF OKLAHOMA. LIKELY TO SEE DEVELOPMENT SWD INTO TEXAS LATER THIS AFT/EVE. INSTABILITY AXIS WILL RELOAD FRIDAY OVER THE SE ZONES.. AND THEN EXPAND NWWD INTO REDEVELOPING WARM FRONTAL ZONE FRIDAY NITE. HAVE READJUSTED POPS TO ACCOUNT FOR THIS THINKING. NEXT WAVE WILL EJECT ONTO THE PLAINS SATURDAY.. BUT MAIN FOCUS FOR ACTIVITY WITH THIS WAVE LOOKS TO BE NORTHEAST OF THE OUN CWA ATTM. HOWEVER..STILL LIKELY TO SEE AT LEAST A FEW STORMS ALONG/SE OF I44 CORRIDOR AHEAD OF DRYLINE/FRONT. IT APPEARS THAT LOW LEVEL RIDGING WILL FINALLY BUILD SWD FAR ENUF SUNDAY INTO MONDAY TO ALLOW FOR A BRIEF RESPITE FROM STORMS..BUT TROPICAL BOUNDARY LAYER AIR WILL BE LURKING CLOSE BY AND SHUD MOVE BACK NWD MONDAY/TUES AS LONG WAVE TROF RELOADS OVER THE WRN CONUS. WE WILL BRING SLGT CHC POPS BACK INTO THE SW ZONES MONDAY AFTERNOON WITH ONSET OF MOISTURE RETURN.. AND THEN EXPAND/INCREASE POPS ACROSS THE REST OF THE AREA THRU MID WEEK. MORE BOUTS OF SVR STORMS SEEM LIKELY AS SIGNIFICANT INSTABILITY AXIS REMAINS SUPERIMPOSED UNDERNEATH STRONG MID LEVEL FLOW. MILLER OKC 64 89 67 84 / 60 20 20 30 HBR 59 91 64 88 / 10 20 20 20 SPS 66 94 68 92 / 50 30 20 30 GAG 51 89 57 82 / 10 30 30 10 PNC 64 85 67 82 / 60 20 40 20 DUA 71 88 72 88 / 60 20 20 40 .OUN... OK...NONE. TX...NONE. NWUS54 KOUN 090104 LSROKC LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORMAN OK 801 PM CDT THU MAY 08 2003 TIME (CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 0522 PM 3 S DEL CITY OK TORNADO 05/08/03 OKLAHOMA DAMAGE REPORTED AT GENERAL MOTORS PLANT. REPORTED BY SPOTTER 0539 PM CHOCTAW OK TORNADO 05/08/03 OKLAHOMA REPORTED BY SPOTTER SXUS44 KOUN 090134 STOOK NWSERVICE 0009 20:34 05/08/2003 INTERSTATE 240 EASTBOUND SHUT DOWN AT SHIELDS. INTERSTATE 240 WESTBOUND SHUT DOWN BETWEEN AIR DEPOT AND EASTERN FOR MINIMUM 4 HRS. DPS COMMUNICATIONS CENTER OPER: T.MCCURLEY SXUS44 KOUN 090905 STOOK NWSERVICE 0001 04:05 05/09/2003 XOHP 33351 OKOHP0100 05/09/03 ALL TROOP HEADQUARTERS TORNADO DAMAGE ESTIMATES / TROOP A DISTRICT CLEVELAND COUNTY: MOORE AREA: 75 INJURIES / 5 SERIOUS 500-1500 HOMES DAMAGED OR DESTROYED 20 BUSINESSES DAMAGED OR DESTROYED. OKLAHOMA COUNTY: OKLAHOMA CITY AREA: INJURIES: 109 DAMAGE ESTIMATES: NOT KNOWN CHOCTAW AREA AND EASTERN OKLAHOMA COUNTY: INJURIES: 40 50 HOMES DAMAGED OR DESTROYED TINKER AIR FORCE BASE: PERIMETER FENCE DAMAGE ONLY, NO STRUCTURES. POWER OUTAGES FOR TROOP A: CLEVELAND/OKLAHOMA COUNTIES 38,000 HOMES OR BUSINESSES LOST POWER WITH AN ESTIMATED 18,000 STILL WITHOUT POWER. THROUGHOUT THE TROOP AN ESTIMATED 125 OHP PERSONNEL WERE UTILIZED AT VARIOUS LOCATIONS. ALL ABOVE NUMBERS ARE ESTIMATES 9 OHP UNITS CURRENTLY WORKING TRAFFIC CONTROL ASSIGNMENTS IN EFFECTED AREAS. |
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