Flash flooding due to excessive rainfall is possible.
...FLOOD WATCH IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH
SATURDAY AFTERNOON...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Washington DC, Maryland and northern Virginia, including
the following areas: in DC, District of Columbia. In Maryland,
Anne Arundel, Carroll, Central and Southeast Howard, Central and
Southeast Montgomery, Frederick MD, Northern Baltimore, Northwest
Harford, Northwest Howard, Northwest Montgomery, Prince Georges,
Southeast Harford and Southern Baltimore. In northern Virginia,
Arlington/Falls Church/Alexandria, Eastern Loudoun, Fairfax,
Prince William/Manassas/Manassas Park and Western Loudoun.
* WHEN...From 11 PM EDT this evening through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Showers are expected with scattered thunderstorms late this
evening into midday Saturday. Average rainfall amounts around
1 to 3 inches are expected, but localized amounts around 4 to
7 inches in heavier showers and thunderstorms. Rainfall
amounts around 1 to 3 inches within an hour or two are
possible in areas where the heaviest rainfall occurs. The
best chance for the heaviest rainfall will be overnight into
Saturday morning.
- Please visit http://www.weather.gov/safety/flood for
information on flood safety.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
By The National Weather Service, Sterling, Va.