Event extended (both time and area). Flash Flood Watch from 9/22/2021 8:00 AM to 9/23/2021 8:00 AM EDT for Central Maryland. More information.
Interactive NWS Alert
Radar valid at 800 am EDT, Sep 23rd 2021
Garrett-Washington-Frederick MD-Extreme Western Allegany-Central and
Eastern Allegany-Frederick VA-Warren-Clarke-Madison-Rappahannock-
Northern Fauquier-Western Loudoun-Hampshire-Morgan-Berkeley-
Jefferson-Western Mineral-Eastern Mineral-
Including the cities of Shepherdstown, Purcellville, Charles Town,
Cumberland, Winchester, Romney, Martinsburg, Keyser, Ballenger
Creek, Berryville, Antioch, Front Royal, Russelldale, Grantsville,
Frederick, Hagerstown, Mountain Lake Park, Frostburg, Fort Ashby,
Elk Garden, New Creek, Madison, Paw Paw, Washington, Headsville,
Warrenton, Oakland, and Ridgeville
1006 AM EDT Tue Sep 21 2021
...FLASH FLOOD WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
The National Weather Service in Sterling Virginia has expanded the
* Flash Flood Watch to include portions of Maryland, Virginia and
West Virginia, including the following areas: in Maryland, Central
and Eastern Allegany, Extreme Western Allegany, Frederick MD,
Garrett and Washington. In Virginia, Clarke, Frederick VA,
Madison, Northern Fauquier, Rappahannock, Warren and Western
Loudoun. In West Virginia, Berkeley, Eastern Mineral, Hampshire,
Jefferson, Morgan and Western Mineral.
* From Wednesday morning through Thursday morning.
* Showers and isolated thunderstorms are expected Wednesday into
Thursday morning across the watch area. Given the local
enhancement of the higher terrain and a very moist air mass,
widespread rainfall amounts of two to four inches are expected by
Thursday morning. However, localized amounts could exceed that,
especially along the ridges. Flash flooding is possible.
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government