Upper level troughs moving slowly over the Rocky Mountains combined with a surface trough across extreme West Texas and eastern New Mexico.  Intense heating with plentiful low level moisture lead to strong instability across the area.  This instability combined with strong shear allowed thunderstorms to develop and to produce large hail, flash flooding, and a tornado across the Permian Basin and the Trans Pecos.

Hail in PECOS, TEXAS
From 12-JUN-15 15:23:00 to 12-JUN-15 15:30:00 (CST-6)
Location: FT STOCKTON
Magnitude: 2.50 
Reported by: Law Enforcement

Hail in ECTOR, TEXAS
From 12-JUN-15 16:55:00 to 12-JUN-15 17:00:00 (CST-6)
Location: ODESSA
Magnitude: 1.75 
Reported by: Public

Hail in GAINES, TEXAS
From 12-JUN-15 17:05:00 to 12-JUN-15 17:10:00 (CST-6)
Location: SEMINOLE
Magnitude: 1.50 
Reported by: Trained Spotter

Flash Flood in ECTOR, TEXAS
From 12-JUN-15 17:00:00 to 12-JUN-15 17:45:00 (CST-6)
Location: ODESSA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Heavy rain fell across Ector County and produced flash flooding in Odessa.  Streets were covered with water and there was water over the curbs and into yards from one inch of rain that fell within 30 minutes.  No damage was reported.

Hail in MIDLAND, TEXAS
From 12-JUN-15 16:45:00 to 12-JUN-15 16:55:00 (CST-6)
Location: WARFIELD
Magnitude: 1.25 
Reported by: Social Media

Tornado in GAINES, TEXAS
From 12-JUN-15 17:34:00 to 12-JUN-15 17:36:00 (CST-6)
Location: LOOP
Tornado F-scale: EF0
Reported by: Trained Spotter

A thunderstorm moved across Gaines County and produced a tornado about one mile west of Loop.  The tornado was seen by a trained spotter and reported to be brief.  There was no damage reported with this tornado so it was rated as an EF-0.  Both the path length and width were estimated.

Hail in MARTIN, TEXAS
From 12-JUN-15 17:58:00 to 12-JUN-15 18:03:00 (CST-6)
Location: TARZAN
Magnitude: 2.50 
Reported by: Public

Hail in GAINES, TEXAS
From 12-JUN-15 18:16:00 to 12-JUN-15 18:21:00 (CST-6)
Location: LOOP
Magnitude: 2.50 
Property damage: 3.00K
Crop damage: 7.00K
Reported by: Public

A thunderstorm moved across Gaines County and produced tennis ball sized hail about four miles southeast of Loop.  Windows were reported to be broken and crops damaged.  The cost of damage is a very rough estimate.

Hail in ECTOR, TEXAS
From 12-JUN-15 16:45:00 to 12-JUN-15 16:55:00 (CST-6)
Location: GOLDSMITH
Magnitude: 1.25 
Reported by: Social Media

Hail in MIDLAND, TEXAS
From 12-JUN-15 16:55:00 to 12-JUN-15 17:03:00 (CST-6)
Location: WARFIELD
Magnitude: 2.50 
Reported by: Social Media

Hail in ECTOR, TEXAS
From 12-JUN-15 16:47:00 to 12-JUN-15 16:53:00 (CST-6)
Location: ODESSA
Magnitude: 2.75 
Property damage: 30.00K
Reported by: NWS Employee

A thunderstorm moved across Ector County and produced large hail in and near Odessa.  There was hail damage to vehicles with windows broken near the intersection of Loop 338 and Business 20 in Odessa.  There was also hail damage to residences in south Odessa with windows broken.  The cost of damage is a very rough estimate.

Hail in ECTOR, TEXAS
From 12-JUN-15 17:17:00 to 12-JUN-15 17:22:00 (CST-6)
Location: ODESSA
Magnitude: 1.75 
Reported by: Trained Spotter