...FLOOD WATCH REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of DC, including the following , District of Columbia, Maryland, including the following areas, Anne Arundel, Carroll, Cecil, Central and Southeast Howard, Central and Southeast Montgomery, Frederick MD, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford, Southern Baltimore and Washington, Virginia, including the following areas, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Clarke, Culpeper, Eastern Loudoun, Fairfax, Frederick VA, Greene, Madison, Northern Fauquier, Northern Virginia Blue Ridge, Northwest Prince William, Page, Rappahannock, Rockingham, Shenandoah, Southern Fauquier, Warren and Western Loudoun, and West Virginia, including the following areas, Berkeley, Hampshire, Hardy, Jefferson and Morgan. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Numerous thunderstorms are expected to move across the Watch area this afternoon and evening. While thunderstorms will move along at a faster speed than the past couple of days, they will be capable of producing very heavy instantaneous rainfall rates, and may exhibit some training motion at times. Multiple rounds of thunderstorms may be possible at any single location. In total, a widespread 1 to 2 inches of rain is expected, with embedded higher totals of 3 to 5 inches. Flash flooding may occur as a result. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&