Flash Flood Watch
Issued by NWS Sterling, VA

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WGUS61 KLWX 181635
FFALWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Baltimore MD/Washington DC
1235 PM EDT Fri Aug 18 2017


DCZ001-MDZ004>006-011-013-014-016>018-503>508-VAZ039-040-050>057-
501-502-505-506-190045-
/O.NEW.KLWX.FF.A.0008.170818T1800Z-170819T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
District of Columbia-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-Madison-Rappahannock-Orange-Culpeper-
Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-
King George-Northern Fauquier-Southern Fauquier-Western Loudoun-
Eastern Loudoun-
Including the cities of Washington, 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,
Madison, Orange, Gordonsville, Culpeper, Dale City, Manassas,
Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale,
Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria,
Falmouth, Fredericksburg, Dahlgren, Warrenton, Turnbull,
Purcellville, Leesburg, Ashburn, and Sterling
1235 PM EDT Fri Aug 18 2017

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

The National Weather Service in Sterling Virginia has issued a

* Flash Flood Watch for portions of Maryland, The District of
  Columbia, and 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, and St. Marys. The District of
  Columbia. In Virginia, Arlington/Falls Church/Alexandria,
  Culpeper, Eastern Loudoun, Fairfax, King George, Madison,
  Northern Fauquier, Orange, Prince William/Manassas/Manassas
  Park, Rappahannock, Southern Fauquier, Spotsylvania, Stafford,
  and Western Loudoun.

* Through late tonight

* Thunderstorms with heavy rainfall are expected across the region
  this afternoon and evening. The potential for training
  thunderstorms exists, which could result in several inches of
  rain in one to two hours. Soils are already very moist, meaning
  most of this rain would rapidly run off.

* Runoff from excessive rainfall may cause rapid rises of water
  in low-lying and poor drainage areas as well as streams and
  creeks, resulting in flash flooding. Urban areas will be most
  susceptible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

RCM


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