An upper level trough was to the west of the region as an upper level disturbance moved over the area.  The atmosphere was unstable with upslope winds and plentiful moisture across the area.  These conditions allowed for storms to develop with large hail and flash flooding.  Storms were aided after sunset by an area of strong winds aloft that helped bring in moisture and contribute to lift.

Flash Flood in GAINES, TEXAS
From 04-MAY-15 20:00:00 to 05-MAY-15 03:30:00 (CST-6)
Location: SEAGRAVES
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain fell in Gaines County and produced flash flooding in Seagraves.  Roads were reported to be closed.  The cost of damage is a very rough estimate.

Hail in PECOS, TEXAS
From 04-MAY-15 19:01:00 to 04-MAY-15 19:06:00 (CST-6)
Location: FT STOCKTON
Magnitude: 1.75 
Property damage: 8.00K
Reported by: Trained Spotter

A thunderstorm moved across Pecos County and produced golf ball sized hail at the intersection of Highway 285/385 in the Mesa View neighborhood.  The sheriff's office in Fort Stockton reported that a few windows were broken and some trees were knocked down.  The cost of damage is a very rough estimate.

Hail in WARD, TEXAS
From 04-MAY-15 21:25:00 to 04-MAY-15 21:30:00 (CST-6)
Location: PYOTE
Magnitude: 1.25 
Reported by: Law Enforcement

A thunderstorm moved across Ward County and produced half dollar sized hail near Pyote.  The hail was covering I-20 between mile markers 58 and 66.

Flash Flood in PECOS, TEXAS
From 04-MAY-15 19:00:00 to 04-MAY-15 19:30:00 (CST-6)
Location: BELDING
Flood cause: Heavy Rain
Property damage: 0.20K
Crop damage: 0.00K
Reported by: Public

Heavy rain fell across Pecos County and produced flash flooding west of Fort Stockton.  Six to eight inches of water was flowing over the access road at Interstate 10 at mile marker 235.  The cost of damage is a very rough estimate.

Heavy Rain in GAINES, TEXAS
From 04-MAY-15 16:00:00 to 04-MAY-15 16:50:00 (CST-6)
Location: SEAGRAVES
Reported by: Mesonet

Heavy rain fell near Seagraves and the Texas Tech Mesonet reported 3.96 inches of rain in one hour.

Flash Flood in GAINES, TEXAS
From 04-MAY-15 16:40:00 to 04-MAY-15 17:30:00 (CST-6)
Location: SEAGRAVES
Flood cause: Heavy Rain
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain fell across Gaines County and produced flash flooding in Seagraves.  There was flooding at Highway 385/83 and stranded vehicles at McAdoo Curve.  Water was covering all four lanes of traffic.  The cost of damage is a very rough estimate.

Hail in PECOS, TEXAS
From 04-MAY-15 17:23:00 to 04-MAY-15 17:28:00 (CST-6)
Location: CHANCELLOR
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in PECOS, TEXAS
From 04-MAY-15 17:50:00 to 04-MAY-15 18:00:00 (CST-6)
Location: FT STOCKTON
Magnitude: 1.75 
Reported by: Public

A thunderstorm moved across Pecos County and produced ping pong ball to golf ball sized hail that covered the ground.

Hail in PECOS, TEXAS
From 04-MAY-15 18:32:00 to 04-MAY-15 18:37:00 (CST-6)
Location: FT STOCKTON ARPT FST
Magnitude: 1.50 
Reported by: Emergency Manager

Hail in PECOS, TEXAS
From 04-MAY-15 18:53:00 to 04-MAY-15 18:58:00 (CST-6)
Location: FT STOCKTON
Magnitude: 1.75 
Reported by: Fire Department/Rescue

A thunderstorm moved across Pecos County and produced ping pong ball to golf ball sized hail in Fort Stockton.

Hail in PECOS, TEXAS
From 04-MAY-15 18:13:00 to 04-MAY-15 18:18:00 (CST-6)
Location: BELDING
Magnitude: 1.75 
Reported by: Public

A thunderstorm moved across Pecos County and produced golf ball sized hail along I-10 at exit 237.

Hail in PECOS, TEXAS
From 04-MAY-15 19:00:00 to 04-MAY-15 19:05:00 (CST-6)
Location: FT STOCKTON
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in PECOS, TEXAS
From 04-MAY-15 19:17:00 to 04-MAY-15 19:22:00 (CST-6)
Location: FT STOCKTON
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in WARD, TEXAS
From 04-MAY-15 20:43:00 to 04-MAY-15 20:48:00 (CST-6)
Location: PYOTE
Magnitude: 2.50 
Reported by: Public

A thunderstorm moved across Ward County and produced tennis ball sized hail near Pyote on I-20 between mile marker 59 and 62.

Hail in PECOS, TEXAS
From 04-MAY-15 21:19:00 to 04-MAY-15 21:24:00 (CST-6)
Location: IMPERIAL RES
Magnitude: 1.00 
Reported by: Trained Spotter

A spotter measured the hail at 1.17 inches with a micrometer.

Hail in ECTOR, TEXAS
From 05-MAY-15 00:00:00 to 05-MAY-15 00:05:00 (CST-6)
Location: PLEASANT FARMS
Magnitude: 1.00 
Reported by: Public

A thunderstorm moved across Ector County and produced quarter hail near Pleasant Farms.  The hail was reported near FM 1787 and Highway 385.

Flash Flood in PECOS, TEXAS
From 04-MAY-15 19:20:00 to 04-MAY-15 20:20:00 (CST-6)
Location: FT STOCKTON ARPT FST
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain fell across Pecos County and produced flash flooding in Fort Stockton.  There was two feet of water over I-10 from mile marker 256 into Dickinson Blvd.  The cost of damage is a very rough estimate.

Flash Flood in BORDEN, TEXAS
From 05-MAY-15 00:00:00 to 05-MAY-15 04:00:00 (CST-6)
Location: GAIL
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain fell across Borden County and produced flash flooding in Gail.  The Colorado River was reported to be flooded at Gail.  The cost of damage and area affected is a very rough estimate.

Hail in REEVES, TEXAS
From 04-MAY-15 15:08:00 to 04-MAY-15 15:13:00 (CST-6)
Location: BALMORHEA
Magnitude: 1.75 
Reported by: Emergency Manager

Hail in REEVES, TEXAS
From 04-MAY-15 15:47:00 to 04-MAY-15 15:52:00 (CST-6)
Location: SARAGOSA
Magnitude: 1.75 
Reported by: Law Enforcement

Hail in REEVES, TEXAS
From 04-MAY-15 16:00:00 to 04-MAY-15 16:05:00 (CST-6)
Location: BALMORHEA
Magnitude: 1.75 
Reported by: Emergency Manager

A thunderstorm moved across Reeves County and produced golf ball sized hail 4 miles north of the US 285/302 intersection along US 285.

Hail in REEVES, TEXAS
From 04-MAY-15 16:30:00 to 04-MAY-15 16:35:00 (CST-6)
Location: TOYAH
Magnitude: 0.88 
Reported by: Broadcast Media

A thunderstorm moved across Reeves County and produced nickel sized hail along Highway 285.

Hail in LOVING, TEXAS
From 04-MAY-15 16:30:00 to 04-MAY-15 16:35:00 (CST-6)
Location: MENTONE
Magnitude: 0.88 
Reported by: Broadcast Media

Hail in JEFF DAVIS, TEXAS
From 04-MAY-15 14:08:00 to 04-MAY-15 14:25:00 (CST-6)
Location: FT DAVIS
Magnitude: 1.75 
Reported by: Public