Full Notification

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of north-central and western Maryland, the northern Shenandoah Valley in northwestern Virginia, and the eastern panhandle of West Virginia, including the following areas: in Maryland, Frederick and Washington. In Virginia, Clarke, Frederick, Page, Shenandoah and Warren. In West Virginia, Berkeley, Jefferson and Morgan.

* WHEN...Until 4 PM EDT this afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS... - Slow-moving showers and thunderstorms producing very heavy rainfall rates may result in several instances of flash flooding through late afternoon. - Please visit https://www.weather.gov/safety/flood for flood safety and preparedness information.

* AFFECTED AREAS: WASHINGTON ... FREDERICK ... SHENANDOAH ... FREDERICK ... PAGE ... WARREN ... CLARKE ... MORGAN ... BERKELEY ... JEFFERSON

Instructions:

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.