Flood Watch

Locations Affected

Washington, DC ∙ Baltimore, MD ∙ Alexandria, VA ∙ Gaithersburg, MD ∙ Rockville, MD ∙ Frederick, MD ∙ Bowie, MD ∙ Harrisonburg, VA ∙ Bittinger, MD ∙ Covesville, VA

Full Alert Message

URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Baltimore MD/Washington DC 819 AM EDT Fri May 30 2025 ...FLOOD WATCH NOW IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH LATE TONIGHT... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...The District of Columbia, and portions of Maryland, including the following areas, Anne Arundel, Calvert, Carroll, Cecil, Central and Southeast Howard, Central and Southeast Montgomery, Charles, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford, Southern Baltimore and St. Marys, and Virginia, including the following areas, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Eastern Loudoun, Fairfax, King George, Northwest Prince William, Spotsylvania and Stafford. * WHEN...From 7 PM EDT this evening through late tonight. * 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. Localized considerable flooding is possible. * ADDITIONAL DETAILS... - As a slow-moving frontal system tracks across the area, multiple rounds of showers and thunderstorms are possible. A round of thunderstorms with heavy rain will move into the area early this evening, followed by a shift to a slow moving complex of moderate to heavy rain into the late evening and night. An area of total rainfall of 1 to 2 inches is likely, with localized amounts up to 5 inches possible. Thunderstorms may produce rain rates of 1 to 2 inches per hour. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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