* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL. * WHERE...A PORTION OF SOUTHWEST TEXAS, INCLUDING THE FOLLOWING AREAS, CHINATI MOUNTAINS, DAVIS MOUNTAINS, DAVIS MOUNTAINS FOOTHILLS, MARFA PLATEAU AND PRESIDIO VALLEY.

* 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... - ADDITIONAL ROUNDS OF NUMEROUS TO WIDESPREAD SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER THE WATCH AREA THIS AFTERNOON THROUGH THURSDAY NIGHT. HEAVY RAINFALL MAY QUICKLY RESULT IN AREAS OF FLASH FLOODING. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD