NOW: Flash Flood Warning issued for Fairfax County

Updated at 4:45 p.m. — The Tornado Warning was terminated early at 4:33 p.m., but Severe Thunderstorm and Flash Flood warnings remain in effect until around 5 p.m. and 7:45 p.m., respectively.

Updated at 4:25 p.m. — A Tornado Warning has also been issued until 4:45 p.m.

“At 418 PM EDT, a severe thunderstorm capable of producing a tornado was located over Franconia, or over Springfield, moving northeast at 25 mph,” the National Weather Service said.

Updated at 4:20 p.m. — The Flash Flood Warning has been expanded to include the Tysons area, Vienna and Annandale.

Earlier: This afternoon’s rush-hour commute will be a wet one.

A thunderstorm has reached Fairfax County, and it could bring some flooding, according to the National Weather Service.

The agency has issued a Flash Flood Warning specifically for the southern half of the county and the Fairfax City area. The alert will be in effect until 8 p.m.

“Turn around, don’t drown when encountering flooded roads,” the NWS said. “Most flood deaths occur in vehicles. Basement flooding can occur quickly and create a life-threatening situation. If you are in a basement, or a residence below street level, move to a higher floor immediately.”

[8/14/23 3:57P M] Fairfax County is currently in a FLASH FLOOD WARNING until 8:00 PM EDT. pic.twitter.com/jN2YCPJtLB

— Ready Fairfax (@ReadyFairfax) August 14, 2023

A Severe Thunderstorm Warning is also in effect until 4:30 p.m., affecting the Fort Belvoir, Mount Vernon and Lorton areas.

According to the NWS, radar showed “a severe thunderstorm” moving northeast at 20 mph from Quantico at 4:02 p.m. Wind gusts of up to 60 mph are possible.

“Damaging winds will cause some trees and large branches to fall,” the agency warns. “This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles.”

The full Flash Flood Warning is below:

* Flash Flood Warning for…Southern Fairfax County in northern Virginia…Prince William County in northern Virginia…The City of Fairfax in northern Virginia…

* Until 800 PM EDT.

* At 353 PM EDT, Doppler radar indicated thunderstorms producing heavy rain developing across the warned area. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash
flooding is expected to begin shortly.

HAZARD…Flash flooding caused by thunderstorms.
SOURCE…Radar.
IMPACT…Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include…
Centreville…Dale City… Annandale…Springfield… Fairfax…Fort Hunt… Groveton…Huntington… Mantua…Fort Belvoir… Woodbridge…Quantico… Lake Ridge…Burke… Oakton…Lincolnia… Montclair…
Lorton… Franconia…

This includes the following Flood Prone Roads:
Woodburn Road at Accotink Creek…Fairfax Boulevard at Oak Street…Fairfax Boulevard at University Drive…Pickett Rd at Accotink Creek near Old Pickett Rd… Mine Road and Cameron Street…