* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE. * WHERE...PORTIONS OF EAST CENTRAL, SOUTH CENTRAL, AND SOUTHEAST WYOMING, INCLUDING THE FOLLOWING AREAS, IN EAST CENTRAL WYOMING, CONVERSE COUNTY LOWER ELEVATIONS AND NIOBRARA COUNTY. IN SOUTH CENTRAL WYOMING, CENTRAL CARBON COUNTY, FERRIS SEMINOE SHIRLEY MOUNTAINS, NORTH SNOWY RANGE FOOTHILLS, SHIRLEY BASIN, SOUTHWEST CARBON COUNTY AND UPPER NORTH PLATTE RIVER BASIN. IN SOUTHEAST WYOMING, CENTRAL LARAMIE COUNTY, CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, EAST LARAMIE COUNTY, EAST PLATTE COUNTY, GOSHEN COUNTY, LARAMIE VALLEY, NORTH LARAMIE RANGE, SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS.

* WHEN...FROM NOON MDT TODAY THROUGH THURSDAY EVENING.

* 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. AREA CREEKS AND STREAMS ARE RUNNING HIGH AND COULD FLOOD WITH MORE HEAVY RAIN.

* ADDITIONAL DETAILS... - TORRENTIAL RAINFALL COMBINED WITH TRAINING THUNDERSTORMS MAY LEAD TO RISES IN CREEKS, FLOOD LOW LYING AREAS, AND TEMPORARILY OVERWHELM DRAINAGE AREAS DUE TO EXCESSIVE RUN OFF FROM HYDROPHOBIC SOILS. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD