NOAA logo  
alert map
Radar valid at 200 am EDT, Jul 12th 2019

alert legend

District of Columbia-Washington-Frederick MD-Carroll-
Northern Baltimore-Southern Baltimore-Prince Georges-Anne Arundel-
Charles-St. Marys-Calvert-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-Eastern Loudoun-
Including the cities of Washington, Hagerstown, Frederick,
Ballenger Creek, Eldersburg, Westminster, Reisterstown,
Cockeysville, Baltimore, Bowie, Suitland-Silver Hill, Clinton,
College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie,
Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton,
St. Charles, Waldorf, Lexington Park, California,
Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby,
Prince Frederick, Germantown, Damascus, Bethesda, Rockville,
Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City,
Jarrettsville, Aberdeen, Dale City, Manassas, Woodbridge,
Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville,
Chantilly, McLean, Franconia, Arlington, Alexandria,
Falls Church, Purcellville, Leesburg, Ashburn, Sterling, Paw Paw,
Martinsburg, Charles Town, and Shepherdstown
418 AM EDT Thu Jul 11 2019


The National Weather Service in Sterling Virginia has issued a

* Flash Flood Watch for portions of Maryland, The District of
Columbia, northern Virginia, and panhandle West Virginia,
including the following areas, in Maryland, Anne Arundel,
Calvert, Carroll, Central and Southeast Howard, Central and
Southeast Montgomery, Charles, Frederick MD, Northern
Baltimore, Northwest Harford, Northwest Howard, Northwest
Montgomery, Prince Georges, Southeast Harford, Southern
Baltimore, St. Marys, and Washington. The District of
Columbia. 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.

* From 2 PM EDT this afternoon through late tonight

* Showers and thunderstorms are expected this afternoon and
evening. Torrential rainfall may lead to totals exceeding 2
inches in a short period of time. This may cause flash flooding
of small streams and other poor drainage urban areas.


A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

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 agencies only. You are encouraged to complete a short survey on iNWS. See the iNWS Service Description Document for more information.