A weak cold front moved through South Central Texas and produced widespread thunderstorms. Some of these storms produced damaging wind gusts and heavy rain that led to flash flooding.

Thunderstorm Wind in BASTROP, TEXAS
From 18-AUG-12 20:33:00 to 18-AUG-12 20:33:00 (CST-6)
Location: ROSANKY
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm produced wind gusts estimated at 58 mph that uprooted a large tree and peeled a tin roof off a barn.

Lightning in BEXAR, TEXAS
From 18-AUG-12 21:30:00 to 18-AUG-12 21:30:00 (CST-6)
Location: SAN ANTONIO
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A thunderstorm produced a lightning strike that started a house fire in San Antonio.

Flash Flood in WILLIAMSON, TEXAS
From 18-AUG-12 22:30:00 to 18-AUG-12 22:30:00 (CST-6)
Location: WEIR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that caused flash flooding closing FM 971 near Berry Creek.

Flash Flood in WILLIAMSON, TEXAS
From 18-AUG-12 22:30:00 to 18-AUG-12 22:30:00 (CST-6)
Location: FLORENCE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorms produced heavy rain that caused flash flooding closing Hwy 195 near Florence.

Flash Flood in BEXAR, TEXAS
From 19-AUG-12 00:00:00 to 19-AUG-12 00:00:00 (CST-6)
Location: SAN ANTONIO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that caused flash flooding closing Amity Rd at Roland Ave in San Antonio.

Flash Flood in BEXAR, TEXAS
From 19-AUG-12 01:52:00 to 19-AUG-12 01:52:00 (CST-6)
Location: ALAMO DOWNS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that caused flash flooding closing Pinn Rd from W. Commerce St to Hwy 151 in San Antonio.

Flash Flood in BEXAR, TEXAS
From 19-AUG-12 04:30:00 to 19-AUG-12 04:30:00 (CST-6)
Location: SAN ANTONIO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that caused flash flooding affecting both the northbound and southbound lanes of the lower level of I-35 near San Pedro Ave in San Antonio.

Flash Flood in MEDINA, TEXAS
From 19-AUG-12 04:30:00 to 19-AUG-12 04:30:00 (CST-6)
Location: RIO MEDINA
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 around the county including FM 471 and CR 741.

Flash Flood in WILLIAMSON, TEXAS
From 18-AUG-12 22:00:00 to 18-AUG-12 22:00:00 (CST-6)
Location: GEORGETOWN MUNI ARPT
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 the intersection of Airport Rd and Lakeway Dr in Georgetown.

Flash Flood in BEXAR, TEXAS
From 19-AUG-12 01:17:00 to 19-AUG-12 01:17:00 (CST-6)
Location: LACKLAND AFB
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that caused flash flooding closing Brook Valley Dr at Ray Ellison Blvd in San Antonio.