An upper trough was off the Pacific coast and was moving inland over California and Arizona.  This put West Texas and southeast New Mexico under southwest winds aloft.  A dryline was backed up against the mountains leaving good moisture with 50 degree dewpoints off to the east.   The dryline and boundaries across the area became the focus for thunderstorms.  Lapse rates and instability were high, which aided in the development of severe storms with large hail, strong winds, and flash flooding.

Flash Flood in MIDLAND, TEXAS
From 30-MAY-16 19:35:00 to 30-MAY-16 22:00:00 (CST-6)
Location: GREENWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Heavy rain fell across Midland County and produced flash flooding in and near Greenwood, TX.  There was flooding along Highway 307 between FM 1379 and FM 1105 with an estimated six inches to a foot in depth.

Hail in GLASSCOCK, TEXAS
From 30-MAY-16 17:55:00 to 30-MAY-16 18:00:00 (CST-6)
Location: LEES
Magnitude: 1.50 
Reported by: Public

Thunderstorm Wind in MIDLAND, TEXAS
From 30-MAY-16 20:35:00 to 30-MAY-16 20:35:00 (CST-6)
Location: GREENWOOD
Magnitude: 65.00 EG
Reported by: NWS Employee

A thunderstorm moved across Midland County and produced a 75 mph wind gust in Greenwood.

Hail in HOWARD, TEXAS
From 30-MAY-16 17:18:00 to 30-MAY-16 17:23:00 (CST-6)
Location: BIG SPRING
Magnitude: 1.50 
Reported by: Trained Spotter

A trained spotter reported nickel to ping pong size hail with a storm that moved over Big Spring, TX.

Hail in SCURRY, TEXAS
From 30-MAY-16 18:27:00 to 30-MAY-16 18:32:00 (CST-6)
Location: SNYDER
Magnitude: 1.50 
Reported by: Public

Quarter to ping pong ball size hail was reported by the public one mile west of Snyder, TX.

Hail in SCURRY, TEXAS
From 30-MAY-16 18:34:00 to 30-MAY-16 18:39:00 (CST-6)
Location: SNYDER
Magnitude: 1.75 
Reported by: Public

Hail in SCURRY, TEXAS
From 30-MAY-16 18:25:00 to 30-MAY-16 18:35:00 (CST-6)
Location: SNYDER
Magnitude: 2.00 
Reported by: Public

Heavy Rain in SCURRY, TEXAS
From 30-MAY-16 18:49:00 to 30-MAY-16 20:30:00 (CST-6)
Location: SNYDER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rain lead to flooding of low lying areas and minor street flooding in the City of Snyder.

Hail in GAINES, TEXAS
From 30-MAY-16 20:45:00 to 30-MAY-16 20:50:00 (CST-6)
Location: SEMINOLE
Magnitude: 0.88 
Reported by: Trained Spotter

Flash Flood in MIDLAND, TEXAS
From 30-MAY-16 20:50:00 to 30-MAY-16 22:45:00 (CST-6)
Location: GREENWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rain fell across Midland County and produced flash flooding in Spraberry. Highway 158 between Highway 137 and Interstate 20 was nearly underwater and impassable.

Flash Flood in MIDLAND, TEXAS
From 30-MAY-16 21:00:00 to 30-MAY-16 22:45:00 (CST-6)
Location: GREENWOOD
Flood cause: Heavy Rain
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain fell across Midland County and produced flash flooding.  Roads on the southwest side of Greenwood, TX were under 18 inches of water and impassable by a large vehicle, such as a Sedan.  The cost of damage is a very rough estimate.

Thunderstorm Wind in MIDLAND, TEXAS
From 30-MAY-16 21:55:00 to 30-MAY-16 21:55:00 (CST-6)
Location: MIDLAND
Magnitude: 52.00 EG
Reported by: NWS Employee

A thunderstorm moved across Midland County and produced a strong wind gust.  A National Weather Service employee estimated a wind gust of around 60 mph out of the northwest at Midkiff and Loop 250 in the City of Midland.

Hail in MARTIN, TEXAS
From 30-MAY-16 22:44:00 to 30-MAY-16 22:49:00 (CST-6)
Location: STANTON
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in HOWARD, TEXAS
From 30-MAY-16 17:15:00 to 30-MAY-16 17:20:00 (CST-6)
Location: BIG SPRING
Magnitude: 2.00 
Reported by: Public

A thunderstorm moved across Howard County and produced large hail in Big Spring. Golf ball to hen egg size hail was reported in the City of Big Spring on Johnson Street.

Flash Flood in GLASSCOCK, TEXAS
From 30-MAY-16 18:31:00 to 30-MAY-16 20:00:00 (CST-6)
Location: LEES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain fell and caused flash flooding six miles northeast of Spraberry, TX.  Slow running water was covering roads in multiple locations with some places having at least six to eight inches of water over the roads.

Flash Flood in HOWARD, TEXAS
From 30-MAY-16 19:07:00 to 30-MAY-16 20:45:00 (CST-6)
Location: SOUTH HAVEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Heavy rain fell across Howard County and produced flash flooding.  High water was reported over FM 33 about three miles north northeast of Lees, TX.