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Meteorologist’s view: Flood warnings for bigger rivers in DC area

WASHINGTON — After almost constant rain over the weekend, flooding of the bigger rivers in the D.C. area has become more likely Sunday afternoon, as the waters from streams, creeks, and runoff from roadway fills the rivers.

River flood warnings had already been posted for the Rappahannock River in Remington as of Sunday afternoon, in effect until Monday.

The Potomac River at Harpers Ferry, Shepherdstown, Point of Rocks and Edwards Ferry has river flood warnings in effect until Tuesday or until further notice.

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The Shenandoah River also has locations under effect until Tuesday evening.

A river flood watch was in effect for the rest of the length of the freshwater Potomac until further notice.

Most computer models from the Middle Atlantic River Forecast Center in State College, Pennsylvania, have the rivers going above flood stages Sunday evening or overnight, cresting at minor to moderate flood stages late Monday or early Tuesday.

Some of the freshwater Potomac locations may not drop below flood stage until Wednesday.

As is often the case, at Georgetown and points south, flooding levels will be affected by tides.

Hot, humid week ahead for DC area with severe storm risk

A dangerous heat wave will grip the D.C. area through Thursday, with highs in the mid to upper 90s and heat index values between 100 and 105. Hot and humid conditions are expected through Thursday, according to the National Weather Service, which said to expect daily thunderstorm chances and a risk of severe thunderstorms. 7News Meteorologist Eileen Whelan told WTOP that most of Tuesday will stay dry, but a few late-day thunderstorms are possible, especially north and east of D.C. as storms drift south from Pennsylvania. Any storm could produce damaging wind gusts and hail, but Whelan reiterated "storm chances are low" on Tuesday. Due to a lack of air conditioning, Parkdale High School in Riverdale, Maryland, closed early at 10:30 a.m. on Tuesday, Prince George's County Public Schools said in a social media post.
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