August 7-8, 2013 Severe Storms and Flooding

August 7-8, 2013 Severe Storms and Flooding

A nearly ideal setup for widespread rain and thunderstorms across the Panhandles evolved on August 7 and 8. Aloft, a series of shortwave troughs moved across the area, providing adequate large scale lift. At the surface, a stationary front and multiple outflow boundaries also aided in low-level lifting. With very moist air in place, the amount of lifting easily triggered multiple rounds of convection each afternoon and evening. Many of the same areas were hit repeatedly, which led to isolated flooding in some spots.

On Wednesday, August 7, severe thunderstorms mainly targeted the Oklahoma Panhandle and the northwestern Texas Panhandle. Many of the storms produced damaging wind gusts, including a 68 mph wind gust near Goodwell, OK. Some of the storms initially produced very large hail, including up to baseball size north of Boise City, OK that caused damage to some vehicles. Additionally, one supercell thunderstorm produced a brief EF-0 tornado near Turpin, OK. As the storms moved over the same areas, very heavy rain caused flash flooding in Guymon and Beaver, OK.

On Thursday, August 8, severe thunderstorms were more prevalent across the central and southern Texas Panhandle. These storms produced a wind gust of 77 mph near Hereford, TX (West Texas Mesonet summary) and golf ball size hail near Fritch, TX. Although flooding was not as severe as it was the previous night, some street flooding still occurred in Perryton and Shamrock, TX.

Total Precipitation August 7-8, 2013
*Location*	*Total (inches)*
Lipscomb	4.25
Beaver	3.61
Kelton	3.42
Perryton	2.90
Spearman	2.80
Boise City	2.67
Canadian	2.58
Shamrock	2.51
Wheeler	2.48
Hooker	2.41
Stratford	2.40
Higgins	2.32
McLean	2.23
Dalhart	2.27
Guymon	1.92
Fritch	1.69
Pampa	1.59
Hereford	1.47
Borger	0.99
Lake Meredith	0.96
Palo Duro Canyon	0.93
Wellington	0.67
Canyon	0.57
Umbarger	0.51
SE Amarillo	0.43
Claude	0.33
NWS Amarillo	0.08

STORM IMAGES


Supercell near Pampa, TX (courtesy of Jason Boggs)	Shelf cloud moving into Amarillo (courtesy of Wesley Luginbyhl)	Lightning in Clarendon, TX (courtesy of Britton Hall)


Ping pong hail in Pampa, TX (courtesy of Ellen de Ridder)	Large hail in Keyes, OK (courtesy of Sheri Callahan)	Shelf cloud moving into Amarillo (courtesy of Nicholas Fenner)


EF-0 tornado near Turpin, OK (courtesy of Scott Hedrick	Shelf cloud across the southern Texas Panhandle (courtesy of Brady Kendrick)	Shelf cloud in Amarillo (courtesy of Brandon Weldon)


2-day rainfall totals (courtesy of Oklahoma Mesonet)	Estimated rainfall on August 7 across the Texas and Oklahoma Panhandles	Estimated rainfall on August 8 across the Texas and Oklahoma Panhandles

AUGUST 7 STORM REPORTS

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
107 PM CDT THU AUG 08 2013

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

0510 PM     HAIL             4 NNW BOISE CITY        36.78N 102.55W
08/07/2013  E2.75 INCH       CIMARRON           OK   EMERGENCY MNGR

0550 PM     TSTM WND GST     3 SSE BOISE CITY        36.69N 102.50W
08/07/2013  M63 MPH          CIMARRON           OK   MESONET

0604 PM     HAIL             7 W KEYES               36.81N 102.38W
08/07/2013  E1.75 INCH       CIMARRON           OK   LAW ENFORCEMENT

0615 PM     HAIL             KEYES                   36.81N 102.25W
08/07/2013  E1.75 INCH       CIMARRON           OK   LAW ENFORCEMENT

0629 PM     HAIL             KEYES                   36.81N 102.25W
08/07/2013  M1.75 INCH       CIMARRON           OK   TRAINED SPOTTER

0630 PM     HAIL             KEYES                   36.81N 102.25W
08/07/2013  E2.75 INCH       CIMARRON           OK   LAW ENFORCEMENT

0630 PM     TSTM WND GST     TEXLINE                 36.38N 103.02W
08/07/2013  E60 MPH          DALLAM             TX   TRAINED SPOTTER

0707 PM     HAIL             3 SE TYRONE             36.92N 101.03W
08/07/2013  E1.50 INCH       TEXAS              OK   TRAINED SPOTTER

0734 PM     HAIL             3 NNW BAKER             36.91N 101.04W
08/07/2013  E1.50 INCH       TEXAS              OK   EMERGENCY MNGR

0735 PM     TSTM WND GST     3 SSE BOISE CITY        36.69N 102.50W
08/07/2013  M64 MPH          CIMARRON           OK   MESONET

0736 PM     TORNADO          1 SW TURPIN             36.86N 100.89W
08/07/2013                   BEAVER             OK   NWS STORM SURVEY

            BASED ON NWS DAMAGE SURVEY. ESTIMATED PEAK WIND 65 MPH.
            TORNADO STAYED IN OPEN COUNTRY.

0900 PM     TSTM WND GST     2 E GOODWELL            36.60N 101.60W
08/07/2013  M66 MPH          TEXAS              OK   MESONET

0905 PM     TSTM WND GST     2 E GOODWELL            36.60N 101.60W
08/07/2013  M68 MPH          TEXAS              OK   MESONET

0925 PM     FLASH FLOOD      GUYMON                  36.69N 101.48W
08/07/2013                   TEXAS              OK   FIRE DEPT/RESCUE

            LOW LYING ROADS ARE BEING CLOSED AS THEY ARE BECOMING
            IMPASSABLE

0930 PM     TSTM WND GST     1 W HOOKER              36.86N 101.23W
08/07/2013  M65 MPH          TEXAS              OK   MESONET

0932 PM     TSTM WND GST     3 NNE HOOKER            36.90N 101.20W
08/07/2013  M59 MPH          TEXAS              OK   BROADCAST MEDIA

0935 PM     TSTM WND GST     1 W HOOKER              36.86N 101.23W
08/07/2013  M65 MPH          TEXAS              OK   MESONET

0940 PM     TSTM WND GST     1 W HOOKER              36.86N 101.23W
08/07/2013  M60 MPH          TEXAS              OK   MESONET

1034 PM     TSTM WND GST     TURPIN                  36.87N 100.88W
08/07/2013  E60 MPH          BEAVER             OK   TRAINED SPOTTER

1047 PM     FLASH FLOOD      GUYMON                  36.69N 101.48W
08/07/2013                   TEXAS              OK   OK HIGHWAY PTRL

            FLASH FLOODING IN THE COUNTY REPORTED AND SOME ROADS
            CLOSED BY OKLAHOMA DEPARTMENT OF TRANSPORTATION

1108 PM     TSTM WND DMG     BEAVER                  36.81N 100.52W
08/07/2013                   BEAVER             OK   EMERGENCY MNGR

            3 TO 4 INCH DIAMETER TREE BRANCHES DOWN IN BEAVER

1109 PM     FLASH FLOOD      13 S TURPIN             36.68N 100.88W
08/07/2013                   BEAVER             OK   EMERGENCY MNGR

            EMERGENCY MANAGEMENT REPORTED WATER OVER HIGHWAY 83

1140 PM     FLASH FLOOD      BEAVER                  36.81N 100.52W
08/07/2013                   BEAVER             OK   EMERGENCY MNGR

            FLASH FLOODING IN BEAVER AND ON HIGHWAY 270 4 TO 5
            MILES SOUTH OF BEAVER. RECEIVED AROUND 4 INCHES OF RAIN
            IN BEAVER. 4 TO 6 INCHES OF WATER OVER SOME ROADS. WATER
            IN HOMES AND BUSINESSES...INCLUDING THE COURTHOUSE.

AUGUST 8 STORM REPORTS

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
1221 AM CDT FRI AUG 09 2013

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

0801 PM     TSTM WND GST     7 N BOOTLEG             34.93N 102.81W
08/08/2013  M60 MPH          DEAF SMITH         TX   BROADCAST MEDIA

0820 PM     HAIL             2 N FRITCH              35.67N 101.60W
08/08/2013  E1.75 INCH       HUTCHINSON         TX   TRAINED SPOTTER

0823 PM     HAIL             1 ESE FRITCH            35.64N 101.58W
08/08/2013  E1.25 INCH       HUTCHINSON         TX   TRAINED SPOTTER

            REPORTED A FEW HALF DOLLAR SIZED HAIL STONES WITH MANY
            MORE QUARTER SIZED

0826 PM     HAIL             FRITCH                  35.64N 101.60W
08/08/2013  E1.25 INCH       HUTCHINSON         TX   LAW ENFORCEMENT

            HALF DOLLAR SIZE HAIL IN FRITCH.

0832 PM     TSTM WND DMG     2 SSW HEREFORD          34.80N 102.41W
08/08/2013                   DEAF SMITH         TX   PUBLIC

            TREES KNOCKED DOWN AND SKYLIGHTS BUSTED BY HIGH WINDS

0837 PM     TSTM WND GST     2 WNW HEREFORD          34.83N 102.43W
08/08/2013  M63 MPH          DEAF SMITH         TX   MESONET

0839 PM     HAIL             1 NW PAMPA              35.56N 100.98W
08/08/2013  E1.50 INCH       GRAY               TX   EMERGENCY MNGR

            PING PONG SIZE HAIL ON NORTHWEST SIDE OF PAMPA.

0840 PM     TSTM WND GST     2 WNW HEREFORD          34.83N 102.43W
08/08/2013  M77 MPH          DEAF SMITH         TX   MESONET

0842 PM     HAIL             PAMPA                   35.55N 100.96W
08/08/2013  E1.00 INCH       GRAY               TX   LAW ENFORCEMENT

0844 PM     TSTM WND DMG     HEREFORD                34.82N 102.40W
08/08/2013                   DEAF SMITH         TX   EMERGENCY MNGR

            POWER LINES DOWN AROUND HEREFORD.

1016 PM     TSTM WND GST     15 S GOODNIGHT          34.81N 101.18W
08/08/2013  M62 MPH          ARMSTRONG          TX   BROADCAST MEDIA