* WHAT. Flash flooding caused by excessive rainfall is possible. * WHERE. Including the following , District of Columbia, in Maryland, Anne Arundel, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Charles, Frederick MD, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford and Southern Baltimore, in Virginia, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Eastern Loudoun, Fairfax, Northwest Prince William and Western Loudoun. * WHEN. Until 8 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. - Showers and thunderstorms are likely this afternoon through early this evening. Some thunderstorms will produce heavy rainfall with amounts around 1 to 2 inches within an hour. Localized amounts up to 3 inches are possible in the strongest storms. The heavy amounts of rain in a short period of time may lead to rapid rises of creeks and streams out of their banks as well as potential flash flooding in urban areas. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information

* 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, Charles and Prince Georges, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park and Fairfax. * WHEN. Until 8 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. - Showers and thunderstorms are likely this afternoon through early this evening. Some thunderstorms will produce heavy rainfall with amounts around 1 to 2 inches within an hour. Localized amounts up to 3 inches are possible in the strongest storms. The heavy amounts of rain in a short period of time may lead to rapid rises of creeks and streams out of their banks as well as potential flash flooding in urban areas. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information

FFWLWX The National Weather Service in Sterling Virginia has issued a * Flash Flood Warning for. Southeastern Montgomery County in central Maryland. * Until 930 PM EDT. * At 630 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD. Flash flooding caused by thunderstorms. SOURCE. Radar. IMPACT. Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include. Germantown. Rockville. Bethesda. Gaithersburg. Olney. Aspen Hill. Potomac. North Bethesda. Montgomery Village. North Potomac. Fairland. White Oak. Redland. Great Falls. Colesville. Kemp Mill. Chevy Chase. North Kensington. South Kensington. Forest Glen.