An upper level low pressure system located over northern portions of Mexico in combination with east to southeast surface winds pulling in abundant amounts of Gulf moisture and providing upslope flow, led to the development of showers and thunderstorms across west Texas and southeastern New Mexico.
During the overnight hours on early Sunday morning, showers and thunderstorms moved out of northern Mexico into southwest Texas.  Additional thunderstorms developed over the higher elevations of southwest Texas leading to pre-sunrise severe weather in the form of hail and flash flooding across the southwest portions of the County Warning Area.  As the morning progressed, a large area of embedded showers and thunderstorms moved northeastward across southeastern New Mexico and the Texas Permian Basin producing occasional severe weather, before exiting into the South Plains of West Texas.
With antecedent conditions remaining in place, the additional boundaries left by morning convection and daytime heating led to thunderstorm re-development by early Sunday afternoon and a significant severe weather event that affected much of the area into the pre-dawn hours on Monday morning.

Hail in CULBERSON, TEXAS
From 29-APR-07 12:00:00 to 29-APR-07 12:00:00 (CST-6)
Location: PLATEAU
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two inch diameter hail fell along Interstate 10 east of the Plateau Truckstop.

Hail in ECTOR, TEXAS
From 29-APR-07 15:35:00 to 29-APR-07 15:35:00 (CST-6)
Location: PLEASANT FARMS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in BREWSTER, TEXAS
From 29-APR-07 06:00:00 to 29-APR-07 09:00:00 (CST-6)
Location: CASTOLON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Big Bend National Park staff reported one to two feet of water flooding Castalon Canyon.

Hail in UPTON, TEXAS
From 29-APR-07 19:17:00 to 29-APR-07 19:17:00 (CST-6)
Location: RANKIN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in HOWARD, TEXAS
From 29-APR-07 16:35:00 to 29-APR-07 16:35:00 (CST-6)
Location: COAHOMA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in UPTON, TEXAS
From 29-APR-07 19:32:00 to 29-APR-07 19:36:00 (CST-6)
Location: MIDKIFF
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Nickel size hail fell in 60-65 mph winds on the Midland/Upton County line.

Hail in MIDLAND, TEXAS
From 29-APR-07 17:06:00 to 29-APR-07 17:06:00 (CST-6)
Location: GREENWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel to quarter size hail fell in Greenwood.

Thunderstorm Wind in UPTON, TEXAS
From 29-APR-07 19:32:00 to 29-APR-07 19:36:00 (CST-6)
Location: MIDKIFF
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A member of the media reported 60 to 65 mph winds along with nickel size hail along the Midland/Upton County line.  No damage was reported.

Hail in BREWSTER, TEXAS
From 29-APR-07 17:12:00 to 29-APR-07 17:12:00 (CST-6)
Location: ALPINE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golfball size hail fell along U.S. Highway 67 northeast of Alpine.

Thunderstorm Wind in UPTON, TEXAS
From 29-APR-07 19:04:00 to 29-APR-07 19:04:00 (CST-6)
Location: RANKIN
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A local television forecaster reported 80 mph winds in Rankin.  No damage was reported.

Hail in MIDLAND, TEXAS
From 29-APR-07 19:32:00 to 29-APR-07 19:36:00 (CST-6)
Location: MIDLAND
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Nickel size hail fell in 60 to 65 mph winds on the Midland/Upton County line.

Hail in BREWSTER, TEXAS
From 29-APR-07 11:44:00 to 29-APR-07 11:44:00 (CST-6)
Location: TERLINGUA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PECOS, TEXAS
From 29-APR-07 17:31:00 to 29-APR-07 17:36:00 (CST-6)
Location: IMPERIAL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel to golfball size hail fell in Imperial.

Hail in PECOS, TEXAS
From 29-APR-07 17:49:00 to 29-APR-07 17:49:00 (CST-6)
Location: BELDING
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in JEFF DAVIS, TEXAS
From 29-APR-07 12:00:00 to 29-APR-07 12:00:00 (CST-6)
Location: VALENTINE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell on the Culberson/Jeff Davis County line on Texas Highway 118.

Flash Flood in CRANE, TEXAS
From 29-APR-07 19:00:00 to 29-APR-07 23:00:00 (CST-6)
Location: CRANE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several cars were stalled in one to two feet of water at the intersection of U.S. 385 and Texas Route 329.

Hail in CRANE, TEXAS
From 29-APR-07 20:30:00 to 29-APR-07 20:30:00 (CST-6)
Location: CRANE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CRANE, TEXAS
From 29-APR-07 18:18:00 to 29-APR-07 18:40:00 (CST-6)
Location: CRANE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter to golfball size hail fell in a swath south of Crane.

Flash Flood in PECOS, TEXAS
From 29-APR-07 11:44:00 to 29-APR-07 16:00:00 (CST-6)
Location: BAKERSFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Farm to Market Road 11 was impassable due to flooding.  In addition, the Exxon Station in Bakersfield was flooded.

Flash Flood in HOWARD, TEXAS
From 29-APR-07 18:20:00 to 29-APR-07 22:00:00 (CST-6)
Location: BIG SPRING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Third and fourth streets in Big Spring were flooded with three feet of water.  In addition Farm to Market Road 820 on the north side of Coahoma was flooded.

Flash Flood in WARD, TEXAS
From 29-APR-07 11:00:00 to 29-APR-07 14:00:00 (CST-6)
Location: MONAHANS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Five to six inches of water flowed over the road into Monahans Sandhills State Park.  Also, in Grandfalls on Texas Highway 18, six to twelve inches of water flowed over the road.

Hail in JEFF DAVIS, TEXAS
From 29-APR-07 11:58:00 to 29-APR-07 11:58:00 (CST-6)
Location: FT DAVIS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel size hail fell on Texas Highway 17 on the Jeff Davis/Reeves County line.

Hail in REEVES, TEXAS
From 29-APR-07 12:40:00 to 29-APR-07 12:40:00 (CST-6)
Location: TOYAHVALE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PECOS, TEXAS
From 29-APR-07 16:31:00 to 29-APR-07 16:31:00 (CST-6)
Location: FT STOCKTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell on Interstate 10 west of Fort Stockton.

Flash Flood in MIDLAND, TEXAS
From 29-APR-07 16:35:00 to 29-APR-07 23:00:00 (CST-6)
Location: MIDLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An off-duty NWS employee reported a foot of water on Bentwood Street between Thomason and Anetta and on Wadley near Midland Drive.  The Midland Police Department reported that the intersection of East County Road 90 and South County Road 1160 was closed due to flooding.  The Midland Fire Department reported eight inches of water flowing over the intersection of Loop 250 and Business 20.  The Texas Department of Transportation closed Texas Highway 307 under Interstate 20 due to flash flooding.

Flash Flood in PECOS, TEXAS
From 29-APR-07 18:20:00 to 29-APR-07 22:00:00 (CST-6)
Location: FT STOCKTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Six to eight inches of water was flowing over roads in Fort Stockton.

Hail in GLASSCOCK, TEXAS
From 29-APR-07 17:00:00 to 29-APR-07 17:00:00 (CST-6)
Location: GARDEN CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in JEFF DAVIS, TEXAS
From 29-APR-07 11:44:00 to 29-APR-07 11:44:00 (CST-6)
Location: FT DAVIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter size hail fell at the intersection of Texas Highway 17 and Farm to Market Road 1832.

Hail in REEVES, TEXAS
From 29-APR-07 11:58:00 to 29-APR-07 11:58:00 (CST-6)
Location: BALMORHEA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel size hail fell in a swath along Texas Highway 17 from the Jeff Davis/Reeves County line to Toyahvale.

Hail in CULBERSON, TEXAS
From 29-APR-07 12:00:00 to 29-APR-07 12:00:00 (CST-6)
Location: KENT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel hail fell on the Culberson/Jeff Davis county line on Texas Highway 118.

Flash Flood in CULBERSON, TEXAS
From 29-APR-07 15:40:00 to 29-APR-07 18:40:00 (CST-6)
Location: KENT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Water was flowing over a road just southwest of Kent.

Flash Flood in ECTOR, TEXAS
From 29-APR-07 15:11:00 to 29-APR-07 21:00:00 (CST-6)
Location: ODESSA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several thunderstorms produced heavy rain that resulted in flash flooding across the city of Odessa.
One foot of water was flowing across the intersection of Texas Highway 302 and Farm to Market Road 1882 and across 22nd St.  Andrews Highway and Yukon Road also were flooded.  A high water rescue was conducted by the Odessa Fire Department at the intersection of Interstate 20 and Grandview where water was two and a half feet deep.  The intersection of Knocks and 3rd Street had four to six inches of water flowing over the road.

Thunderstorm Wind in MIDLAND, TEXAS
From 29-APR-07 19:32:00 to 29-APR-07 19:36:00 (CST-6)
Location: MIDLAND
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A member of the media reported 60 to 65 mph winds along with nickel size hail on the Midland/Upton County line.  No damage was reported.

Hail in BREWSTER, TEXAS
From 29-APR-07 04:00:00 to 29-APR-07 04:00:00 (CST-6)
Location: LAJITAS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFF DAVIS, TEXAS
From 29-APR-07 10:36:00 to 29-APR-07 10:36:00 (CST-6)
Location: FT DAVIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado in JEFF DAVIS, TEXAS
From 29-APR-07 11:07:00 to 29-APR-07 11:12:00 (CST-6)
Location: VALENTINE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Just after the Fort Davis tornado, another tornado was sighted in the western portions of Jeff Davis County near the town of Valentine.  An area of rather weak convection developed along a north-south line from northern portions of Presidio County into Jeff Davis County near Valentine.  The tornado was very long and thin.  Images indicate that during a portion of its life cycle, the tornado touched down over higher terrain west of Highway 90.

Tornado in JEFF DAVIS, TEXAS
From 29-APR-07 11:58:00 to 29-APR-07 12:03:00 (CST-6)
Location: FT DAVIS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tornado was reported near the Buffalo Trail Boy Scout Camp north-northwest of Fort Davis.

Tornado in JEFF DAVIS, TEXAS
From 29-APR-07 10:40:00 to 29-APR-07 10:54:00 (CST-6)
Location: FT DAVIS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

During the late morning of April 29, the Jeff Davis County emergency manager reported a tornado just south of the intersection of Texas Highways 166 and 17 over open country.  While several hundred yards wide, the tornado was described by several spotters as having a relatively weak rotation.  This is confirmed by the lack of damage as the tornado crossed both Highway 17 and Highway 166.  The tornado moved along a north northwest track, just missing most of the the town of Fort Davis.  The tornado then moved into Davis Mountains State Park, across Skyline Drive near Scenic Outlook, and then down the mountain into the lower elevations on the east side of the park.  Tree damage was noted both on the mountain side and in the valley areas.  As the tornado crossed Highway 118, it began to meander along Limpia Creek before finally dissipating.