New event. Flash Flood Watch from 8/27/2021 1:00 PM to 11:00 PM EDT for Central Maryland, Delmarva/Southern MD. More information.
Interactive NWS Alert
Radar valid at 1100 pm EDT, Aug 27th 2021
District of Columbia-Prince Georges-Central and Southeast Montgomery-
Central and Southeast Howard-Fairfax-Arlington/Falls
Including the cities of Silver Spring, Bowie, Arlington, Falls
Church, Bethesda, Chantilly, Centreville, College Park, Columbia,
Herndon, Greenbelt, McLean, Camp Springs, Rockville, Suitland-Silver
Hill, Laurel, Ellicott City, Reston, Alexandria, Clinton,
Washington, Annandale, Gaithersburg, and Franconia
256 AM EDT Fri Aug 27 2021
...FLASH FLOOD WATCH IN EFFECT FROM 1 PM EDT THIS AFTERNOON THROUGH
The National Weather Service in Sterling Virginia has issued a
* Flash Flood Watch for portions of DC, central Maryland and
northern Virginia, including the following areas: in DC, District
of Columbia. In central Maryland, Central and Southeast Howard,
Central and Southeast Montgomery and Prince Georges. In northern
Virginia, Arlington/Falls Church/Alexandria and Fairfax.
* From 1 PM EDT this afternoon through this evening.
* Numerous showers and thunderstorms are expected this afternoon and
evening. Average rainfall amounts are expected to be between one
half to one inch. However, thunderstorms will be capable of
producing very heavy rainfall rates of 2 to 3 inches per hour,
causing localized amounts of 2 to 4 inches possible. While storms
are possible any time this afternoon through this evening, the
most widespread thunderstorm activity is most likely to be late
this afternoon through early this evening.
* Heavy rainfall amounts in a short period of time may result in
rapid rises on streams and creeks as well as the potential for
flash flooding in urban areas.
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government