Event extended (time). Flash Flood Watch from 8/17/2021 8:00 PM to 8/18/2021 10:00 PM EDT for Central Maryland. More information.
Interactive NWS Alert
Radar valid at 1000 pm EDT, Aug 18th 2021
Including the cities of Harrisonburg, Winchester, Paw Paw, New
Market, Martinsburg, Woodstock, Hagerstown, Strasburg, and Mount
401 PM EDT Tue Aug 17 2021
...FLASH FLOOD WATCH NOW IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH WEDNESDAY EVENING...
The Flash Flood Watch is now in effect for
* Portions of north central Maryland, Virginia and panhandle West
Virginia, including the following areas: in north central
Maryland, Washington. In Virginia, Frederick VA, Rockingham and
Shenandoah. In panhandle West Virginia, Berkeley and Morgan.
* From 8 PM EDT this evening through Wednesday evening.
* Multiple rounds of heavy showers and thunderstorms will affect the
region from this evening through Wednesday evening. Tropical
moisture will lead to potential precipitation rates of 1 to 2
inches per hour. Localized storm total rain amounts in excess of 3
inches are possible.
* Heavy rain over a short amount of time may result in rapid rises
on streams and creeks and in urbanized and poor drainage areas.
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