Fairfax County put under Flash Flood Watch for this afternoon

A Flash Flood Watch has been issued for the D.C. area on Aug. 27, 2021 (via Fairfax Alerts)

A Flash Flood Watch has been issued for the D.C. area, including Fairfax County.

The alert will take effect at 1 p.m. and is currently set to expire at 11 p.m., as the National Weather Service says “numerous showers and thunderstorms” are expected to pass through the region this afternoon and evening.

While just up to an inch of rain is projected to fall on average, the thunderstorms could bring heavy rainfall within a short period of time to localized areas, potentially leading streams and creeks to flood.

Here is the full NWS alert:

…FLASH FLOOD WATCH IN EFFECT FROM 1 PM EDT THIS AFTERNOON THROUGH
THIS EVENING…

The National Weather Service in Sterling Virginia has issued a

* Flash Flood Watch for portions of DC, central Maryland and northern Virginia, including the following areas: in DC, District of Columbia. In central Maryland, Central and Southeast Howard, Central and Southeast Montgomery and Prince Georges. In northern Virginia, Arlington/Falls Church/Alexandria and Fairfax.

* From 1 PM EDT this afternoon through this evening.

* Numerous showers and thunderstorms are expected this afternoon and evening. Average rainfall amounts are expected to be between one half to one inch. However, thunderstorms will be capable of
producing very heavy rainfall rates of 2 to 3 inches per hour, causing localized amounts of 2 to 4 inches possible. While storms are possible any time this afternoon through this evening, the most widespread thunderstorm activity is most likely to be late this afternoon through early this evening.

* Heavy rainfall amounts in a short period of time may result in rapid rises on streams and creeks as well as the potential for flash flooding in urban areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

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

Today’s anticipated showers come after a relatively brief thunderstorm took out power for thousands of people in McLean.

The issues appear to have been largely addressed overnight, but Dominion Energy’s outage map shows a handful of customers still waiting for electricity to be restored, including 24 people east of Dolley Madison Estates Park. A crew is assessing the damage, and the estimated time of restoration is 11 a.m. to 4 p.m.

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