Severe Weather Threatens DC Area With Flash Flooding Monday

WHO:

WTOP - D.C. Mayor Muriel Bowser issued a heat alert for the District.

WTOP - 7News First Alert Meteorologist Jordan Evans provided weather forecasts.

WTOP - Kevin Rodriguez is a lead meteorologist for the National Weather Service’s Baltimore/Washington office.

WHAT:

WTOP - The National Weather Service reported that daily chances for showers and thunderstorms are expected to persist through the end of the week.

WTOP - Meteorologist Mark Peña indicated that periods of heavy rain could produce flooding concerns, especially west of Interstate 95.

WTOP - The forecast for Thursday includes isolated afternoon showers and thunderstorms with highs between 89-93, feeling like 102.

WTOP - The forecast for Friday shows a continued chance of afternoon storms (60%) with highs between 88-93, feeling as hot as 102.

WTOP - Heavy storms are expected to bring flash flooding, gusty winds, and power outages to the D.C. region.

WTOP - The storms could produce localized flash flooding, with some areas experiencing heavy downpours.

WTOP - Sunday’s storms produced 2 to 3 1/2 inches of rain in the western D.C. suburbs.

WTOP - A ground stop was issued at BWI Marshall Airport until 2:30 p.m. due to storm conditions.

WHERE:

WTOP - The D.C. region, including areas south of I-66 and western D.C. suburbs.

WTOP - Montgomery County reported a large tree limb falling, damaging a utility pole.

WHEN:

WTOP - Daily chances for showers and thunderstorms are expected to continue through at least the middle of the week.

WTOP - A heat alert is in effect until 8 p.m.

WHY:

WTOP - The storms are caused by a slow-moving storm system bringing warm, humid air to the region.

HOW:

WTOP - An approaching cold front is expected to bring widespread rain and thunderstorms, with tropical-like humidity remaining in place ahead of the front.

WTOP - Meteorologists expect storms to develop along specific areas, particularly south of I-66, and predict that rain coverage will be lower than previous days.

(UPDATED August 3, 2026 22:02 UTC)

The National Weather Service has reported that daily chances for showers and thunderstorms are expected to continue through the end of the week, with meteorologist Mark Peña warning of potential flooding concerns, particularly west of Interstate 95. The forecast for Thursday includes isolated afternoon showers and thunderstorms, with temperatures reaching highs between 89 and 93 degrees, but feeling as hot as 102. Looking ahead to Friday, there's a 60% chance of afternoon storms, with highs again between 88 and 93 degrees, and that oppressive humidity will remain in place ahead of an approaching cold front.

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(UPDATED August 3, 2026 20:37 UTC)

D.C. Mayor Muriel Bowser has issued a heat alert for the District as heavy storms are expected to bring flash flooding, gusty winds, and power outages to the region. Meteorologists, including Kevin Rodriguez from the National Weather Service, anticipate localized flash flooding with some areas experiencing heavy downpours, following Sunday’s storms that produced two to three and a half inches of rain in the western D.C. suburbs. Daily chances for showers and thunderstorms are expected to continue through at least the middle of the week, with the heat alert remaining in effect until 8 p.m.