At 427 PM CDT, a severe thunderstorm was located 18 miles south of Sanderson, moving north at 25 mph. HAZARD...Golf ball size hail and 70 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Sanderson.

At 333 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. The expected rainfall rate is 2.5 to 3.5 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Grandfalls, Imperial Reservoir, Royalty and Fort Stockton-Pecos County Airport. This includes the following streams and drainages... Comanche Creek, Pecos River and Leon Creek.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 685 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN TEXAS THIS WATCH INCLUDES 13 COUNTIES IN SOUTHWEST TEXAS PECOS IN WESTERN TEXAS BORDEN CRANE DAWSON ECTOR GLASSCOCK HOWARD MARTIN MIDLAND MITCHELL REAGAN SCURRY UPTON THIS INCLUDES THE CITIES OF BIG LAKE, BIG SPRING, COLORADO CITY, CRANE, FORT STOCKTON, GAIL, GARDEN CITY, LAMESA, MCCAMEY, MIDLAND, ODESSA, RANKIN, SNYDER, AND STANTON.

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southwest and western Texas, including the following areas, in southwest Texas, Central Brewster, Chinati Mountains, Chisos Basin, Davis Mountains, Davis Mountains Foothills, Lower Brewster County, Marfa Plateau, Pecos, Presidio Valley and Terrell. In western Texas, Andrews, Borden, Crane, Dawson, Ector, Gaines, Glasscock, Howard, Loving, Martin, Midland, Mitchell, Reagan, Reeves County Plains, Scurry, Upton, Ward and Winkler. * WHEN...Through Friday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Moisture from Hurricane Simon will stream over West Texas the next several days. Periods of heavy rain are expected from this system that will likely cause flash flooding, especially in urban areas and low water crossings where drainage is poor. - http://www.weather.gov/safety/flood