Scattered severe thunderstorms developed across areas on the Caprock and southwestern Texas Panhandle during the early evening hours. Many of the initial storms developed on an outflow boundary that moved into the area from an early morning MCS in the central Texas Panhandle. Storms began near the Texas/New Mexico state line and moved slowly to the east-northeast. The most damaging severe storm of the evening occurred in Castro County. This storm produced a wind gust to 95 mph. These winds caused significant damage in the town of Dimmitt and to the Texas Tech University West Texas mesonet site near Dimmitt. The initial storms produced additional outflow boundaries which acted as a focus for new thunderstorm development. One of these storms adversely impacted the city of Lubbock. A slow moving storm deluged portions of the city of Lubbock with one to four inches of rainfall over a period of about one hour. Many city roads became flooded, with several high water rescues performed by emergency personnel. Several thousand cloud to ground lightning strikes also affected the city. Numerous structure fires were reported around the city including one affecting an apartment complex. The apartment structures were completely destroyed.

Thunderstorm Wind in SWISHER, TEXAS
From 11-AUG-11 17:30:00 to 11-AUG-11 17:30:00 (CST-6)
Location: TULIA ARPT
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Tulia police department reported power lines blown down near the intersection of TX Highway 86 and FM 1424 west of Tulia.

Flash Flood in LUBBOCK, TEXAS
From 11-AUG-11 20:30:00 to 11-AUG-11 22:00:00 (CST-6)
Location: LUBBOCK
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Broadcast Media

There was flash flooding over portions of the city of Lubbock due to rainfall between one and four inches over a period of about one hour. Several high water rescues were performed and many motorists became stuck in water over the roadways. Several roads were also closed due to high water. A parking lot of a restaurant flooded out several vehicles.

Thunderstorm Wind in LAMB, TEXAS
From 11-AUG-11 16:18:00 to 11-AUG-11 16:26:00 (CST-6)
Location: OLTON
Magnitude: 60.00 MG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A broadcast media automated weather station at Del-Tex Airport in Olton measured a wind gust to 69 mph. Significant wind damage was reported in Olton by the emergency manager. Several power lines and trees were downed along with roof damage.

Thunderstorm Wind in LUBBOCK, TEXAS
From 11-AUG-11 20:00:00 to 11-AUG-11 20:00:00 (CST-6)
Location: REESE AFB
Magnitude: 52.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Local broadcast and print media reported power lines down within the city of Lubbock.

Thunderstorm Wind in CASTRO, TEXAS
From 11-AUG-11 17:15:00 to 11-AUG-11 17:30:00 (CST-6)
Location: DIMMITT
Magnitude: 83.00 MG
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Mesonet

A Texas Tech University West Texas mesonet station near Dimmitt measured a wind gust to 95 mph. The mesonet station sustained significant damage during the thunderstorm. The mesonet station's radiation shields were damaged, and a pole and guy wires were pulled out of the ground. Additionally, three-quarter inch hail dents were observed on the mesonet equipment. A center pivot irrigation system was also damaged in vicinity of the mesonet station. Southwest of Dimmitt, seven power poles were downed around the intersection of FM 1055 and County Road 621. In Dimmitt, a feed lot office was heavily damaged.

Hail in CASTRO, TEXAS
From 11-AUG-11 17:30:00 to 11-AUG-11 17:30:00 (CST-6)
Location: DIMMITT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Three-quarter inch hail dents were observed on the equipment associated with the
Texas Tech University West Texas mesonet site near Dimmitt.

Hail in LAMB, TEXAS
From 11-AUG-11 17:26:00 to 11-AUG-11 17:26:00 (CST-6)
Location: OLTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported hail to the size of quarters in Olton. No damage was reported.

Lightning in LUBBOCK, TEXAS
From 11-AUG-11 20:00:00 to 11-AUG-11 20:00:00 (CST-6)
Location: LUBBOCK
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Local broadcast and print media reported numerous lightning started structure fires around the city of Lubbock. One of these fires destroyed the Hunter's Way apartment complex near the intersection of 56th Street and West Loop 289. One firefighter was taken to the hospital with minor injuries sustained while fighting the fire. One five minute plot of cloud to ground lightning data displayed around 1200 strikes over Lubbock County.