..FLOOD WATCH NOW IN EFFECT UNTIL 4 AM EDT FRIDAY... The Flood Watch is now in effect for * Portions of Maryland, The District of Columbia, and northern Virginia, including the following areas, 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. The District of Columbia. In northern Virginia, Arlington/Falls Church/Alexandria, Eastern Loudoun, Fairfax, Northern Fauquier, Prince William/Manassas/Manassas Park, Southern Fauquier, and Western Loudoun. * Until 4 AM EDT Friday * A widespread soaking rain around 2 inches is expected. Isolated amounts of around 3 inches are possible. The steadiest rain is expected through 10 pm this evening, with residual runoff persisting through tonight. * These rainfall amounts may cause small streams and creeks to go out of their banks, as well as cause flooding of low-lying, urban and poor drainage areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
By The National Weather Service