Update: Flash Flood Watch issued July 21 at 7:42PM EDT expiring July 22 at 2:00AM EDT by NWS Baltimore MD/Washington DC

Event: Flash Flood Watch
Sender Name: NWS Baltimore MD/Washington DC
Issued: 2018-07-21T19:42:00-04:00
Expires: 2018-07-22T02:00:00-04:00
Description: The Flash Flood Watch continues for

* Portions of Maryland, The District of Columbia, 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 Virginia, Arlington/Falls
Church/Alexandria, Eastern Loudoun, Fairfax, King George,
Prince William/Manassas/Manassas Park, Stafford, and Western
Loudoun. In panhandle West Virginia, Jefferson.

* Until 2 AM EDT Sunday

* Heavy rain will continue across the region through this evening
before ending overnight. 2 to 5 inches of rain are expected with
localized totals up to 6 inches possible.

* Excessive rainfall in a short period of time could lead to
flash flooding. Urban areas, locations along small streams and
creeks, and poor drainage areas are most vulnerable to flash
flooding.

Instruction: 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.

Link to more Info: http://www.weather.gov
Urgency: Future
Severity: Severe
Certainty: Possible
Categories: Met,
Area Description: Anne Arundel; King George; Fairfax; Northern Baltimore; Stafford; Northwest Howard; St. Marys; District of Columbia; Northwest Harford; Frederick; Jefferson; Southern Baltimore; Central and Southeast Montgomery; Eastern Loudoun; Calvert; Carroll; Prince Georges; Charles; Western Loudoun; Arlington/Falls Church/Alexandria; Prince William/Manassas/Manassas Park; Central and Southeast Howard; Washington; Northwest Montgomery; Southeast Harford

Message Identifier: NWS-IDP-PROD-2995486-2694625
CAP MessageType: Update
Added note: – Flash Flood Warnings warnings