An upper level area of low pressure moved across Texas and caused widespread thunderstorms. These storms produced damaging winds, large hail, and heavy rain that resulted in flash flooding.

Hail in VAL VERDE, TEXAS
From 10-MAY-12 05:05:00 to 10-MAY-12 05:05:00 (CST-6)
Location: COMSTOCK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Thunderstorm Wind in VAL VERDE, TEXAS
From 10-MAY-12 05:05:00 to 10-MAY-12 05:05:00 (CST-6)
Location: COMSTOCK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A thunderstorm produced wind gusts estimated at 60 mph.

Hail in VAL VERDE, TEXAS
From 10-MAY-12 05:20:00 to 10-MAY-12 05:20:00 (CST-6)
Location: COMSTOCK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A thunderstorm produced hail that covered the ground. The largest hail was quarter size.

Hail in FRIO, TEXAS
From 10-MAY-12 10:00:00 to 10-MAY-12 10:00:00 (CST-6)
Location: DILLEY ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in WILSON, TEXAS
From 10-MAY-12 11:25:00 to 10-MAY-12 11:25:00 (CST-6)
Location: THREE OAKS
Magnitude: 50.00 EG
Reported by: County Official

Thunderstorms produced wind gusts estimated to 58 mph that caused extensive crop damage in Wilson County.

Flash Flood in MAVERICK, TEXAS
From 10-MAY-12 17:15:00 to 10-MAY-12 17:15:00 (CST-6)
Location: LA GLORIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that caused flash flooding closing several roads north of Eagle Pass. These storms also produced pea size hail.

Thunderstorm Wind in WILLIAMSON, TEXAS
From 10-MAY-12 19:35:00 to 10-MAY-12 19:35:00 (CST-6)
Location: CEDAR PARK
Magnitude: 43.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A thunderstorm produced wind gusts estimated at 50 mph that knocked down several trees and power lines.

Hail in WILLIAMSON, TEXAS
From 10-MAY-12 19:52:00 to 10-MAY-12 19:52:00 (CST-6)
Location: OLD ROUND ROCK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A thunderstorm produced nickel size hail that caused traffic problems on I35.

Flash Flood in BASTROP, TEXAS
From 10-MAY-12 22:53:00 to 10-MAY-12 22:53:00 (CST-6)
Location: BASTROP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that flooded a home on Pine Hill Loop in Bastrop.

Hail in BEXAR, TEXAS
From 11-MAY-12 18:38:00 to 11-MAY-12 18:38:00 (CST-6)
Location: FRATT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in BEXAR, TEXAS
From 11-MAY-12 18:55:00 to 11-MAY-12 18:55:00 (CST-6)
Location: ROBARDS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in BEXAR, TEXAS
From 11-MAY-12 18:52:00 to 11-MAY-12 18:52:00 (CST-6)
Location: (SAT)SAN ANTONIO INT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Flash Flood in VAL VERDE, TEXAS
From 10-MAY-12 11:15:00 to 10-MAY-12 11:15:00 (CST-6)
Location: COMSTOCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Thunderstorms produced heavy rain that flooded low water crossings, closing FM 1024 and Highway 163. Numerous dirt roads were also washed out by the rain.

Flash Flood in FRIO, TEXAS
From 10-MAY-12 11:47:00 to 10-MAY-12 11:47:00 (CST-6)
Location: OTLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that flooded the I35 feeder roads over the Frio River north of Dilley. Numerous other roads north of Dilley were also covered with water.

Thunderstorm Wind in WILSON, TEXAS
From 10-MAY-12 12:22:00 to 10-MAY-12 12:22:00 (CST-6)
Location: KOSCIUSKO
Magnitude: 50.00 EG
Reported by: Fire Department/Rescue

A thunderstorm produced wind gusts estimated at 58 mph that damaged roofs, trees, and blew down power lines and poles just south of Stockdale near Kosciusko.  Damage was reported along FM 541 toward Poth as well as on the east side of Highway 123 near Country Roads 451 and 252.  Roof damage was also reported in this area.

Hail in WILSON, TEXAS
From 10-MAY-12 12:25:00 to 10-MAY-12 12:25:00 (CST-6)
Location: KOSCIUSKO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in WILSON, TEXAS
From 10-MAY-12 13:15:00 to 10-MAY-12 13:15:00 (CST-6)
Location: POTH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced 5 inches of rain near Poth prompting the high water rescue team to be called in.

Flash Flood in UVALDE, TEXAS
From 10-MAY-12 14:02:00 to 10-MAY-12 14:02:00 (CST-6)
Location: NORTH UVALDE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded low water crossings closing Highway 55 northwest of Uvalde to just south of the Uvalde-Real County line.

Flash Flood in WILSON, TEXAS
From 10-MAY-12 15:25:00 to 10-MAY-12 15:25:00 (CST-6)
Location: POTH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that flooded numerous small roads in Wilson County.

Flash Flood in ATASCOSA, TEXAS
From 10-MAY-12 13:55:00 to 10-MAY-12 13:55:00 (CST-6)
Location: LEMING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded low water crossings closing FM 536 north of Pleasanton as well as FM 1784 near Verdi.

Flash Flood in UVALDE, TEXAS
From 10-MAY-12 15:16:00 to 10-MAY-12 15:16:00 (CST-6)
Location: CONCAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that flooded low water crossings closing FM 1051.

Flash Flood in UVALDE, TEXAS
From 10-MAY-12 15:16:00 to 10-MAY-12 15:16:00 (CST-6)
Location: LAGUNA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that flooded low water crossings closing FM 334 from Brackettville to Highway 55.

Flash Flood in UVALDE, TEXAS
From 10-MAY-12 15:16:00 to 10-MAY-12 15:16:00 (CST-6)
Location: UTOPIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that flooded low water crossings closing Highway 187 from Sabinal to Utopia.

Flash Flood in KINNEY, TEXAS
From 10-MAY-12 15:16:00 to 10-MAY-12 15:16:00 (CST-6)
Location: BRACKETTVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that flooded low water crossings closing FM 334 from Backettville to Highway 55.

Flash Flood in BANDERA, TEXAS
From 10-MAY-12 16:45:00 to 10-MAY-12 16:45:00 (CST-6)
Location: BLUFF
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorms produced heavy rain that flooded low water crossings closing FM 2107 at Rocky Creek Rd.

Flash Flood in KERR, TEXAS
From 10-MAY-12 16:45:00 to 10-MAY-12 16:45:00 (CST-6)
Location: KERRVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorms produced heavy rain that flooded low water crossings closing Hill Country Dr.

Flash Flood in REAL, TEXAS
From 10-MAY-12 16:45:00 to 10-MAY-12 16:45:00 (CST-6)
Location: LEAKEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded low water crossings closing RM 336 from Leakey to Highway 41.

Flash Flood in BANDERA, TEXAS
From 10-MAY-12 16:48:00 to 10-MAY-12 16:48:00 (CST-6)
Location: VANDERPOOL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded low water crossings closing Highway 187 from Vanderpool to Lost Maples State Park.

Flash Flood in REAL, TEXAS
From 10-MAY-12 17:14:00 to 10-MAY-12 17:14:00 (CST-6)
Location: RIO FRIO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded low water crossings closing FM 1120 from Rio Frio to Leakey.

Flash Flood in HAYS, TEXAS
From 10-MAY-12 20:30:00 to 10-MAY-12 20:30:00 (CST-6)
Location: DRIFTWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded several roads in around Driftwood including RM 12.

Flash Flood in BEXAR, TEXAS
From 10-MAY-12 20:48:00 to 10-MAY-12 20:48:00 (CST-6)
Location: WOODLAWN LAKE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded seven roads in and around San Antonio.

Flash Flood in BEXAR, TEXAS
From 10-MAY-12 22:32:00 to 10-MAY-12 22:32:00 (CST-6)
Location: HOLLYWOOD PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded 17 roads in and around San Antonio.

Flash Flood in TRAVIS, TEXAS
From 10-MAY-12 22:30:00 to 10-MAY-12 22:30:00 (CST-6)
Location: AUSTIN MABRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded several roads in Austin.

Flash Flood in BEXAR, TEXAS
From 11-MAY-12 00:00:00 to 11-MAY-12 00:00:00 (CST-6)
Location: (SAT)SAN ANTONIO INT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded several roads in and around San Antonio.

Flash Flood in HAYS, TEXAS
From 11-MAY-12 02:00:00 to 11-MAY-12 02:00:00 (CST-6)
Location: DRIFTWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that flooded low water crossings closing several roads around Driftwood.

Tornado in WILSON, TEXAS
From 10-MAY-12 12:25:00 to 10-MAY-12 12:27:00 (CST-6)
Location: KOSCIUSKO
Tornado F-scale: EF0
Reported by: Emergency Manager

Minor damage was reported along County Road 252 a few miles east of Highway 123.  Tree damage was reported along with roofing material littered across the road. A Barn was destroyed just south of County Road 252.

Flash Flood in UVALDE, TEXAS
From 10-MAY-12 18:39:00 to 10-MAY-12 18:39:00 (CST-6)
Location: CONCAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that flooded low water crossings closing Highway 127 at the Frio River, and RM 2690 at the Frio and Dry Frio Rivers.

Flash Flood in BANDERA, TEXAS
From 10-MAY-12 16:15:00 to 10-MAY-12 16:15:00 (CST-6)
Location: VANDERPOOL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that caused a rock slide due to flash flooding two miles east of Vanderpool.