...FLASH FLOOD WATCH IN EFFECT UNTIL 9 PM EDT THIS EVENING... The National Weather Service in Sterling Virginia has issued a * Flash Flood Watch for portions of DC, Maryland and northern Virginia, including the following areas: in DC, District of Columbia. In Maryland, Anne Arundel, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Frederick MD, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford and Southern Baltimore. In northern Virginia, Arlington/Falls Church/Alexandria, Eastern Loudoun, Fairfax, Prince William/Manassas/Manassas Park and Western Loudoun. * Until 9 PM EDT this evening. * Slow moving showers and thunderstorms will produce very heavy rainfall, potentially leading to areas of flash flooding. Rainfall rates may reach two inches per hour. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
By The National Weather Service, Sterling, Va..