Flood Watch

* WHAT...Flash flooding caused by excessive rainfall continues to be possible.

* WHERE...Portions of DC, including the following , District of Columbia, Maryland, including the following areas, Central and Southeast Montgomery, Charles and Prince Georges, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Fairfax and Southern Fauquier.

* WHEN...Until 11 AM EDT this morning.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded.

* ADDITIONAL DETAILS... - Showers and isolated thunderstorms are ongoing this morning as a warm front lifts north through the area. Rainfall will be heavy at times, with localized rainfall amounts of 2 to 4 inches within an hour or two possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information