Washington, D.C. – Flash flooding could impact the D.C. metro area through 8 p.m. Tuesday as heavy thunderstorms threaten to dump up to 3 inches of rain in parts of Maryland and Northern Virginia.
According to the National Weather Service Baltimore/Washington office, a Flood Watch is in effect for a wide stretch of the region, including Baltimore, Leesburg, Hagerstown, and Washington, D.C. Rainfall rates of 1 to 2 inches per hour are possible, with localized totals reaching 3 inches under the strongest storms.
Urban and low-lying areas like downtown Baltimore, Prince George’s County, and Arlington are especially prone to rapid water accumulation, leading to street flooding and potential road closures. Drivers should avoid flooded roadways and commuters are urged to check transit updates throughout the evening rush.
Emergency officials recommend keeping phones charged, clearing storm drains where safe, and preparing for sudden warnings. Flash flood-prone corridors such as Rock Creek Parkway, Route 1, and I-270 near Gaithersburg could see impacts by late afternoon.
Rain chances taper tonight, but additional watches or warnings are possible if storms redevelop. Stay tuned for updates from NWS and local emergency agencies.