* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Garrett, Allegany, Mineral, Grant, Pendleton, Hardy, Hampshire and Highland Counties. * WHEN...From 10 AM EDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Multiple rounds of heavy showers and thunderstorms are forecast to move across the area beginning this morning, and continuing through this evening. Many areas could see 1 to 2 inches of rain. Areas that see multiple rounds of heavy rain could receive localized amounts of 3 to 4 inches. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information