Chewsville, MD (21721)

... Flash Flood Watch remains in effect through Saturday
afternoon... 

The Flash Flood Watch continues for

* portions of Maryland, the District of Columbia, Virginia, and 
  West Virginia, including the following areas, in Maryland, 
  Anne Arundel, Calvert, Carroll, central and eastern Allegany, 
  central and southeast Howard, central and southeast 
  Montgomery, Charles, extreme western Allegany, 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 Virginia, Arlington/Falls Church/Alexandria, 
  Clarke, Culpeper, eastern Loudoun, Fairfax, Frederick VA, 
  Greene, King George, Madison, northern Fauquier, northern 
  Virginia Blue Ridge, Orange, Page, Prince 
  William/Manassas/Manassas Park, Rappahannock, Shenandoah, 
  southern Fauquier, Spotsylvania, Stafford, Warren, and western 
  Loudoun. In West Virginia, Berkeley, eastern Grant, eastern 
  Mineral, Hampshire, Hardy, Jefferson, Morgan, western Grant, 
  and western Mineral. 

* Through Saturday afternoon

* low pressure will move across Virginia overnight and move slowly
  off the coast through Saturday. Additional rainfall amounts of 1
  to 3 inches are expected through Saturday afternoon. Locally
  higher amounts are likely especially across far northern
  Virginia and north central and central Maryland.
 
* Heavy rainfall may result in rapid rises in streams and 
  creeks. This could quickly result in flooding... especially in 
  low lying and poor drainage areas. 

Precautionary/preparedness actions... 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.