During the late evening of March 19th, 2012 and the early morning hours of March 20th, a squall line of thunderstorms developed across South and South-Central Texas. This squall line developed due to a strong upper level low pressure system located across the southern Rockies and a surface low pressure area and cold front moving across South Texas. Due to the strong winds aloft and an unstable air mass, conditions were ripe for severe storms with damaging winds being the main threat.
As the squall line neared the town of George West, a downburst embedded within the line produced winds between 60 and 80 mph. Radar images indicated winds just above the surface around 85 mph at the time of the downburst. A metal roof, several telephone poles and numerous large tree limbs were damaged from these straight-line winds in George West.
Damaging winds also occurred north of Three Rivers, near Lake Corpus Christi, and in Beeville and Calallen. Mainly tree damage occurred in these areas.

Thunderstorm Wind in LIVE OAK, TEXAS
From 20-MAR-12 02:27:00 to 20-MAR-12 02:30:00 (CST-6)
Location: GEORGE WEST
Magnitude: 70.00 EG
Property damage: 250.00K
Reported by: NWS Storm Survey

NWS storm survey concluded a downburst occurred in George West with winds estimated between 60 and 80 mph. The most significant damage occurred along and east of Highway 281 between Crockett and Burleson Streets. A metal roof was blown off of two motels. Large bay doors were blown out of a maintenance facility. Several power poles were blown down along with numerous large tree limbs, fence posts and signs. The damage path was 2 and half miles wide and 1 and half miles in length.

Thunderstorm Wind in LIVE OAK, TEXAS
From 20-MAR-12 02:15:00 to 20-MAR-12 02:25:00 (CST-6)
Location: SUNILAND
Magnitude: 61.00 EG
Property damage: 20.00K
Reported by: Department of Highways

Trees were blown down and into the roadway along Farm to Market Road 2049.

Thunderstorm Wind in LIVE OAK, TEXAS
From 20-MAR-12 02:45:00 to 20-MAR-12 02:45:00 (CST-6)
Location: DINERO
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Trees were blown down and into the roadway on Farm to Market Road 534.

Thunderstorm Wind in LIVE OAK, TEXAS
From 20-MAR-12 02:55:00 to 20-MAR-12 03:00:00 (CST-6)
Location: ARGENTA
Magnitude: 50.00 EG
Property damage: 5.00K
Reported by: Department of Highways

Trees were blown down and into the roadway on Farm to Market Road 888.

Thunderstorm Wind in NUECES, TEXAS
From 20-MAR-12 04:00:00 to 20-MAR-12 04:00:00 (CST-6)
Location: LON HILL
Magnitude: 50.00 EG
Property damage: 5.00K
Reported by: Public

Tree damage occurred along County Road 73 north of Calallen.

Thunderstorm Wind in NUECES, TEXAS
From 20-MAR-12 04:05:00 to 20-MAR-12 04:05:00 (CST-6)
Location: LON HILL
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Minor roof damage occurred to a church on Farm to Market Road 624 in Calallen.

Thunderstorm Wind in BEE, TEXAS
From 20-MAR-12 03:20:00 to 20-MAR-12 03:25:00 (CST-6)
Location: BEEVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Reported by: Fire Department/Rescue

Minor roof damage to some homes and two uprooted trees were reported in Beeville.