Event cancelled. Flash Flood Watch from 8/18/2021 4:42 PM to 10:00 PM EDT for Central Maryland, Delmarva/Southern MD, Southern PA. More information.
Interactive NWS Alert
Radar valid at 1000 pm EDT, Aug 18th 2021
District of Columbia-Washington-Frederick MD-Carroll-Northern
Baltimore-Southern Baltimore-Northwest Montgomery-Central and
Southeast Montgomery-Northwest Howard-Central and Southeast Howard-
Northwest Harford-Southeast Harford-Prince William/Manassas/Manassas
Park-Fairfax-Arlington/Falls Church/Alexandria-Western Loudoun-
Including the cities of Shepherdstown, Silver Spring, Charles Town,
Herndon, Arlington, Falls Church, Jarrettsville, Martinsburg,
Westminster, Damascus, Purcellville, Bethesda, Chantilly, Ballenger
Creek, Centreville, Sterling, Reisterstown, Columbia, Ashburn,
Germantown, Leesburg, McLean, Rockville, Frederick, Hagerstown, Dale
City, Alexandria, Lake Ridge, Manassas, Reston, Montclair,
Baltimore, Eldersburg, Ellicott City, Paw Paw, Franconia,
Woodbridge, Washington, Annandale, Cockeysville, Lisbon,
Gaithersburg, and Aberdeen
442 PM EDT Wed Aug 18 2021
...FLASH FLOOD WATCH IS CANCELLED...
The Flash Flood Watch has been cancelled for portions of DC,
Maryland, northern Virginia and panhandle West Virginia, including
the following areas: in DC, District of Columbia. In Maryland,
Carroll, Central and Southeast Howard, Central and Southeast
Montgomery, Frederick MD, Northern Baltimore, Northwest Harford,
Northwest Howard, Northwest Montgomery, Southeast Harford, Southern
Baltimore and Washington. In northern Virginia, Arlington/Falls
Church/Alexandria, Eastern Loudoun, Fairfax, Prince
William/Manassas/Manassas Park and Western Loudoun. In panhandle
West Virginia, Berkeley, Jefferson and Morgan.
The Flood Watch is cancelled. Flooding is no longer expected to pose
a threat. Please continue to heed remaining road closures.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government