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.
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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