Heavy rain brings street flooding in DC region, slowdowns on Capital Beltway

WASHINGTON — With rain forecast for the region throughout Sunday, the National Weather Service issued a series of flood watches and warnings.

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A flood watch means there is a potential for flooding based on current forecasts. A flood warning means flooding is imminent.

Flood warnings were issued for communities close to the Potomac River in Loudoun County, Frederick County and Montgomery County, and the Rappahannock River in Fauquier County.

The Potomac River near Point of Rocks, Edwards Ferry and Little Falls could reach flood stages sometime on Monday.

Montgomery County reported that White’s Ferry in Poolesville, Maryland is now closed due to flood concerns.

Most of the D.C. area were under a flood warning overnight.

The WTOP Traffic Center received reports of standing water on certain stretches of the Capital Beltway and advises people to drive carefully, with wipers and headlights on for better visibility. A downed tree limb is blocking the right lane of the inner loop close to the Annapolis Road interchange.

On the outer loop of the beltway, near the intersection with the Baltimore-Washington Parkway, the traffic center reported 3 feet of flooding, as well.

Flooding on the beltway near the Baltimore-Washington Parkway. (Courtesy @ScottOverland via Twitter)

U.S. 50 was stopped both ways between Maryland 201 at Kenilworth Avenue and Columbia Park Road around 6:30 p.m. Flooding caused all lanes to be blocked for several hours.

Meteorologist Matt Ritter said rain, heavy at times, should continue through Sunday but intensity will lessen heading into Sunday evening. Temperatures should remain steady in the low 60s.

WTOP radar forecasts 1.5 to 2 inches of rain for most communities on the west side of the Washington, D.C. area.

Ritter forecasts nicer weather for Monday, with clearer skies later in the day. High temperatures will range from the upper 70s into the low 80s. Wednesday may be the most pleasant day of the next three.

The National Weather Service said rainfall amounts of one-half inch to 1.5 inches of ran can be expected through 6 a.m. Monday, though the rainfall is not expected to be intense.

A flood watch remains in effect for the D.C. area until 6 p.m. Sunday. (Courtesy National Weather Service)



For the most updated traffic report, visit WTOP’s traffic center. You can see a map of the latest traffic conditions below.


A partly cloudy day is expected on Monday with a chance a rain, but not a wash out. Pleasant temperatures will hover in the low to mid 70s.

Partly sunny with a chance for rain, highs are expected to be in the low 80s.

Dan Friedell

Dan Friedell is a digital writer for WTOP. He came to the D.C. area in 2007 to work as digital editor for USATODAY.com, and since then has worked for a number of local and national news organizations.

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