Thunderstorms developed early this evening near Hobbs, NM near a residual outflow boundary embedded within a very unstable and strongly sheared enivornment. A few of these storms became supercells and quickly split into left and right movers. One of these left-moving supercells tracked north-northeast from southwest Yoakum County into southeast Lamb County accompanied by hail as large as baseballs at times.
By early this night, a large and slow-moving squall line erupted in the southwest Texas Panhandle and proceeded to move south-southeast into the northern South Plains before weakening shortly before dawn on the 13th. Scattered instances of downburst winds accompanied this line over the northern South Plains in addition to very heavy rains that resulted in numerous streets being flooded in Tulia and also in Memphis. Scattered heavy rains did help alleviate drought conditions particularly in portions of the extreme southwest Panhandle where heavy spring rains had earlier proved elusive.

Hail in YOAKUM, TEXAS
From 12-JUN-12 19:00:00 to 12-JUN-12 19:25:00 (CST-6)
Location: BRONCO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A swath of quarter size hail west and northwest of Plains. No damage was reported.

Thunderstorm Wind in CASTRO, TEXAS
From 12-JUN-12 22:35:00 to 12-JUN-12 22:35:00 (CST-6)
Location: DIMMITT MUNI ARPT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Thunderstorm Wind in PARMER, TEXAS
From 12-JUN-12 22:20:00 to 12-JUN-12 22:20:00 (CST-6)
Location: FRIONA BENGER ARPK
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Thunderstorm Wind in SWISHER, TEXAS
From 12-JUN-12 23:03:00 to 12-JUN-12 23:03:00 (CST-6)
Location: KAFFIR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter estimated wind gusts to 60 mph with torrential rain and near zero visibility.

Thunderstorm Wind in SWISHER, TEXAS
From 12-JUN-12 23:10:00 to 12-JUN-12 23:10:00 (CST-6)
Location: TULIA
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Hail in SWISHER, TEXAS
From 12-JUN-12 23:15:00 to 12-JUN-12 23:15:00 (CST-6)
Location: TULIA ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement estimated hail up to quarter size with winds of 45-50 mph and zero visibility in torrential rain.

Thunderstorm Wind in LAMB, TEXAS
From 12-JUN-12 23:25:00 to 12-JUN-12 23:25:00 (CST-6)
Location: HART CAMP
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Thunderstorm Wind in MOTLEY, TEXAS
From 13-JUN-12 00:30:00 to 13-JUN-12 00:30:00 (CST-6)
Location: ROARING SPGS BUZZ AR
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Flood in SWISHER, TEXAS
From 12-JUN-12 23:33:00 to 12-JUN-12 23:33:00 (CST-6)
Location: TULIA ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Very heavy rain flooded many side roads and intersections in Tulia. The Highway 87 underpass just southwest of town was temporarily closed after being inundated with up to two feet of water.

Thunderstorm Wind in HALE, TEXAS
From 12-JUN-12 23:35:00 to 12-JUN-12 23:35:00 (CST-6)
Location: PLAINVIEW
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Measured by the Plainview AWOS. Also, a storm chaser nearby estimated a gust to 70 mph at the same time.

Thunderstorm Wind in HOCKLEY, TEXAS
From 13-JUN-12 00:25:00 to 13-JUN-12 00:25:00 (CST-6)
Location: LEVELLAND MUNI ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Thunderstorm Wind in COTTLE, TEXAS
From 13-JUN-12 00:55:00 to 13-JUN-12 00:55:00 (CST-6)
Location: NARCISSO
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Thunderstorm Wind in GARZA, TEXAS
From 13-JUN-12 01:35:00 to 13-JUN-12 01:35:00 (CST-6)
Location: GRAHAM CHAPEL
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Flood in HALL, TEXAS
From 13-JUN-12 01:40:00 to 13-JUN-12 03:40:00 (CST-6)
Location: BRICE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Repeated heavy rains resulted in areas of flooding on Highway 287 in Memphis. Farther west, mud flows were observed spreading over Highway 256 just west of Lesley and also near Lakeview in northern Hall County. No evidence of damage to any roads was reported.

Hail in COCHRAN, TEXAS
From 12-JUN-12 19:36:00 to 12-JUN-12 20:00:00 (CST-6)
Location: LEHMAN
Magnitude: 2.75 
Reported by: Public

An intense anticyclonic supercell produced a hailswath up to baseball size as it moved north-northeast across eastern Cochran County. In some locations such as Whiteface, no rain, but only large hail accompanied the supercell's passage. Although sporadic property and crop damage likely occurred in eastern Cochran County, no reports were received.