
The National Weather Service has issued a Flash Flood Watch for much of the D.C. area, including Fairfax County.
In effect until 2 a.m. tomorrow (Tuesday), the alert says showers and thunderstorms could bring up to 4 inches of rain in some areas, potentially leading to rapidly rising stream and creek waters.
The full alert is below:
…FLASH FLOOD WATCH IN EFFECT UNTIL 2 AM EDT TUESDAY…
The National Weather Service in Sterling Virginia has issued a
* Flash Flood Watch for portions of DC, Maryland and northern Virginia, including the following areas: in DC, District of Columbia. In Maryland, Anne Arundel, Central and Southeast Howard, Central and Southeast Montgomery, Prince Georges and Southern Baltimore. In northern Virginia, Arlington/Falls Church/Alexandria and Fairfax.
* Until 2 AM EDT Tuesday.
* Showers and thunderstorms are expected to produce 1 to 2 inches of rain through this evening, with localized amounts of up to 4 inches possible. Heavy rain in a short amount of time may result in rapid rises of water on small creeks and streams and in urban areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
A Severe Thunderstorm Warning is also in effect for Reston and Herndon until 6:30 p.m., with the NWS warning of 60 mile-per-hour wind gusts that could produce power outages and downed trees.
“At 544 PM EDT, severe thunderstorms were located along a line extending from South Riding to Herndon to Wolf Trap, moving northeast at 50 mph,” the agency said.
With the potential for multiple rounds of showers & thunderstorms into the overnight, a Flash Flood Watch has been issued for the DC metro into parts of northeast MD through 2 AM Tuesday. Flash flooding is possible in small streams and urban areas. Latest: https://t.co/5RyZgoXicj pic.twitter.com/qfUSunieBQ
— NWS Baltimore-Washington (@NWS_BaltWash) October 25, 2021
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