An upper level disturbance interacted with an old frontal boundary and a tropical airmass to produce torrential rain across the Concho Valley and San Angelo.  This very heavy rain caused flash flooding and resulted in many homes flooded and several swift water rescues.  Rainfall amounts of 4 to 8 inches plus fell into the Concho River water shed.  This water flowed into a nearly empty O.C. Fisher Reservoir, filling it to 13 percent full.

Hail in IRION, TEXAS
From 20-MAY-15 16:42:00 to 20-MAY-15 16:42:00 (CST-6)
Location: MERTZON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in IRION, TEXAS
From 20-MAY-15 16:02:00 to 20-MAY-15 16:02:00 (CST-6)
Location: SUGGS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser reported quarter to half dollar size hail in Barnhart.

Heavy Rain in TOM GREEN, TEXAS
From 18-MAY-15 21:00:00 to 18-MAY-15 21:00:00 (CST-6)
Location: (SJT)MATHIS FLD SAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

San Angelo police confirmed one fatality in a vehicle crash on Knickerbocker Road near Bentwood Country Club.  The driver lost control in the very heavy rain as his truck hydroplaned and collided with a tree.

Heavy Rain in TOM GREEN, TEXAS
From 18-MAY-15 20:51:00 to 18-MAY-15 20:51:00 (CST-6)
Location: PECAN STATION
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator reported 6.51 inches of rain about 12 miles south of San Angelo.

Thunderstorm Wind in IRION, TEXAS
From 18-MAY-15 19:20:00 to 18-MAY-15 19:20:00 (CST-6)
Location: SUGGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Barnhart Fire Department and Rescue estimated a thunderstorm wind gust of 60 mph about 7 miles northeast of Barnhart.

Thunderstorm Wind in TOM GREEN, TEXAS
From 18-MAY-15 22:15:00 to 18-MAY-15 22:15:00 (CST-6)
Location: (SJT)MATHIS FLD SAN
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Mathis Field ASOS measured a thunderstorm wind gust of 58 mph.

Thunderstorm Wind in TOM GREEN, TEXAS
From 18-MAY-15 22:13:00 to 18-MAY-15 22:13:00 (CST-6)
Location: (SJT)MATHIS FLD SAN
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A National Weather Service employee estimated a thunderstorm wind gust of 69 mph.  Amateur radio operators reported numerous large tree limbs down near Lake Nasworthy.

Thunderstorm Wind in TOM GREEN, TEXAS
From 18-MAY-15 21:51:00 to 18-MAY-15 21:51:00 (CST-6)
Location: PECAN STATION
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator measured a wind gust of 58 mph, 12 miles south of San Angelo.

Thunderstorm Wind in IRION, TEXAS
From 19-MAY-15 01:30:00 to 19-MAY-15 01:30:00 (CST-6)
Location: BARNHART
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported a thunderstorm wind gust of 60 mph in Barnhart.

Hail in CALLAHAN, TEXAS
From 19-MAY-15 18:00:00 to 19-MAY-15 18:00:00 (CST-6)
Location: ROWDEN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CALLAHAN, TEXAS
From 19-MAY-15 18:22:00 to 19-MAY-15 18:22:00 (CST-6)
Location: CROSS PLAINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in IRION, TEXAS
From 20-MAY-15 15:27:00 to 20-MAY-15 15:27:00 (CST-6)
Location: BARNHART
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in IRION, TEXAS
From 20-MAY-15 16:13:00 to 20-MAY-15 16:13:00 (CST-6)
Location: MERTZON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hail in IRION, TEXAS
From 20-MAY-15 16:15:00 to 20-MAY-15 16:15:00 (CST-6)
Location: MERTZON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Lightning in TAYLOR, TEXAS
From 19-MAY-15 03:45:00 to 19-MAY-15 03:45:00 (CST-6)
Location: WYLIE
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Lightning struck a vacant house on the 4000 Block of Inverrary Drive in Abilene. The roof was destroyed and the home was considered a total loss.

Thunderstorm Wind in SCHLEICHER, TEXAS
From 20-MAY-15 17:55:00 to 20-MAY-15 17:55:00 (CST-6)
Location: EL DORADO MUNI ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated a thunderstorm wind gust of 60 mph and reported tree limbs down at the intersection of FM Road 2129 and County Road 100.

Hail in IRION, TEXAS
From 18-MAY-15 20:05:00 to 18-MAY-15 20:05:00 (CST-6)
Location: SHERWOOD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in TOM GREEN, TEXAS
From 18-MAY-15 22:25:00 to 18-MAY-15 23:52:00 (CST-6)
Location: SAN ANGELO RES
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A National Weather Service employee measured 4.64 inches of heavy rain.

Flood in TOM GREEN, TEXAS
From 19-MAY-15 04:19:00 to 19-MAY-15 17:15:00 (CST-6)
Location: WATER VLY
Flood cause: Heavy Rain
Property damage: 0.50M
Crop damage: 0.00K
Reported by: River/Stream Gage

The Concho River at Carlsbad was classified as a major flood.  At 5 AM CDT, on May 19, the Concho River at Carlsbad went above the 12 foot flood stage.  The river crested to 21.45 feet at 8 AM CDT and fell below flood stage at 615 PM CDT.  The river flooded homes along the river including parts of San Angelo State Park.  About 150 homes were flooded throughout Tom Green County including San Angelo.  These homes were flooded by the river and from earlier flash flooding.

Hail in CALLAHAN, TEXAS
From 19-MAY-15 16:23:00 to 19-MAY-15 16:23:00 (CST-6)
Location: OPLIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in COLEMAN, TEXAS
From 19-MAY-15 16:40:00 to 19-MAY-15 16:40:00 (CST-6)
Location: SILVER VLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in TAYLOR, TEXAS
From 19-MAY-15 16:45:00 to 19-MAY-15 16:45:00 (CST-6)
Location: LAWN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in COLEMAN, TEXAS
From 19-MAY-15 17:15:00 to 19-MAY-15 17:15:00 (CST-6)
Location: SILVER VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in COLEMAN, TEXAS
From 19-MAY-15 17:46:00 to 19-MAY-15 17:46:00 (CST-6)
Location: SILVER VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter to golf ball size hail covered the ground in Burkett.

Flash Flood in TOM GREEN, TEXAS
From 18-MAY-15 22:00:00 to 19-MAY-15 02:30:00 (CST-6)
Location: HARRIET
Flood cause: Heavy Rain
Property damage: 0.50M
Crop damage: 0.00K
Reported by: Amateur Radio

This flash flood impacted Tom Green County and San Angelo, flooding several homes and  numerous roads and low water crossings across the city and county.  Loop 306 was flooded at Knickerbocker Road and Jefferson Street.   Water covered U.S. Highway 87 and surrounding fields for a considerable distance about 1 mile east of Wall.  At 1139 PM CDT, a NWS employee, located 6 miles south southwest of San Angelo, measured 4.64 inches of rain in a 90 minute period.  A woman was rescued from a car that was swept away 3 miles west southwest of San Angelo at the Southwest Boulevard low water crossing.  At 103 AM CDT, the San Angelo Regional Airport was closed because of flooding and flights were diverted to Abilene.