At 849 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1.5 and 3.5 inches of rain have
fallen. Additional rainfall amounts of 0.5 to 1.5 inches are
possible in the warned area. Flash flooding is ongoing or 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...
Waldorf...                         Springfield...
Fort Washington...                 Fort Hunt...
Groveton...                        Fort Belvoir...
Woodbridge...                      Burke...
Lorton...                          Franconia...
Hybla Valley...                    Newington...
Saint Charles...                   West Springfield...
Mount Vernon...                    Accokeek...
Bryans Road...                     Brandywine...
Hayfield...                        Mason Neck...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.