Update at 6:25 p.m. — Another ACFD unit has been dispatched to a swift water rescue at the intersection of Braddock Road and Little River Turnpike in Lincolnia.
Update at 4:50 p.m. — At this point we’ve heard at least three four ACFD units dispatched to assist with swift water rescues.
Several squads from the Arlington County Fire Department have been dispatched to Fairfax County to assist with swift water rescues.
The first mutual aid call came in just after 3:00 p.m. Units have been dispatched to locations like Oakton and Great Falls.
While Arlington has remained fairly dry for much of the afternoon, a line of heavy rains has been soaking parts of Fairfax County for several hours. Via Twitter, there have been several reports of flooding on portions of Route 50, Route 123 and the Dulles Toll Road.