Active Weather Alerts
Special Marine Warning
Issued: 9:17 PM Jul. 9, 2025 – National Weather Service
The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Indian Head to Cobb Island MD... Tidal Potomac from Key Bridge to Indian Head MD... * Until 645 PM EDT. * At 517 PM EDT, severe thunderstorms were located along a line extending from 19 nm northwest of Leesylvania State Park to 20 nm southwest of Potomac Creek, moving northeast at 30 knots. HAZARD...Wind gusts in excess of 48 knots and small hail. SOURCE...Radar indicated. IMPACT...Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds. * Locations impacted include... Potomac Creek, Maryland Point, Nanjemoy Creek, Port Tobacco River, Leesylvania State Park, Smallwood State Park, National Harbor, Quantico, Fort Washington, Tidal Basin, Reagan National Airport, Gunston Hall, Mathias Point, U.S. 301 Nice Memorial Bridge, Woodrow Wilson Bridge, Indian Head, Occoquan Bay, Fort Hunt, Popes Creek, and Brent Point. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && HAIL...<.75IN; WIND...48KTS
Flood Watch
Issued: 7:04 PM Jul. 9, 2025 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of DC, including the following , District of Columbia, Maryland, including the following areas, Anne Arundel, Calvert, Carroll, Cecil, Central and Southeast Howard, Central and Southeast Montgomery, Charles, Frederick MD, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford, Southern Baltimore and St. Marys, Virginia, including the following areas, Albemarle, Arlington/Falls Church/Alexandria, Augusta, Central Virginia Blue Ridge, Central and Southeast Prince William/Manassas/Manassas Park, Clarke, Culpeper, Eastern Loudoun, Fairfax, Greene, King George, Madison, Nelson, Northern Fauquier, Northern Virginia Blue Ridge, Northwest Prince William, Orange, Page, Rappahannock, Rockingham, Shenandoah, Southern Fauquier, Spotsylvania, Stafford, Warren and Western Loudoun, and panhandle West Virginia, including the following area, Jefferson. * WHEN...Until midnight EDT 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. * ADDITIONAL DETAILS... - Numerous showers and thunderstorms will move across the area this afternoon and evening. Rainfall rates of up to 3 inches per hour are possible, which may lead to scattered instances of flash flooding where the heavy rain persists the longest. - 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. &&
Severe Thunderstorm Watch
Issued: 6:03 PM Jul. 9, 2025 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 497 IN EFFECT UNTIL 10 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THE DISTRICT OF COLUMBIA IN MARYLAND THIS WATCH INCLUDES 16 COUNTIES IN CENTRAL MARYLAND ANNE ARUNDEL HOWARD MONTGOMERY PRINCE GEORGES IN NORTH CENTRAL MARYLAND CARROLL FREDERICK WASHINGTON IN NORTHEAST MARYLAND CECIL IN NORTHERN MARYLAND BALTIMORE BALTIMORE CITY HARFORD IN SOUTHERN MARYLAND CALVERT CHARLES ST. MARYS IN WESTERN MARYLAND ALLEGANY GARRETT IN VIRGINIA THIS WATCH INCLUDES 34 COUNTIES IN CENTRAL VIRGINIA ALBEMARLE CITY OF CHARLOTTESVILLE CITY OF FREDERICKSBURG GREENE KING GEORGE NELSON ORANGE SPOTSYLVANIA IN NORTHERN VIRGINIA ARLINGTON CITY OF ALEXANDRIA CITY OF FAIRFAX CITY OF FALLS CHURCH CITY OF MANASSAS CITY OF MANASSAS PARK CULPEPER FAIRFAX FAUQUIER LOUDOUN PRINCE WILLIAM STAFFORD IN NORTHWEST VIRGINIA CITY OF WINCHESTER CLARKE FREDERICK MADISON PAGE RAPPAHANNOCK SHENANDOAH WARREN IN WESTERN VIRGINIA AUGUSTA CITY OF HARRISONBURG CITY OF STAUNTON CITY OF WAYNESBORO HIGHLAND ROCKINGHAM IN WEST VIRGINIA THIS WATCH INCLUDES 8 COUNTIES IN EASTERN WEST VIRGINIA GRANT HAMPSHIRE HARDY MINERAL PENDLETON IN PANHANDLE WEST VIRGINIA BERKELEY JEFFERSON MORGAN THIS INCLUDES THE CITIES OF ABERDEEN, ALEXANDRIA, ANNAPOLIS, ARLINGTON, ARNOLD, ASPEN HILL, BALLENGER CREEK, BALTIMORE, BEL AIR, BERRYVILLE, BETHESDA, BOWIE, CALIFORNIA, CAMP SPRINGS, CATONSVILLE, CHANTILLY, CHARLES TOWN, CHARLOTTESVILLE, CHESAPEAKE BEACH, CLINTON, COLLEGE PARK, COLUMBIA, CROZET, CULPEPER, CUMBERLAND, DAHLGREN, DUNDALK, DUNKIRK, EDGEWOOD, ELDERSBURG, ELKTON, ELLICOTT CITY, ESSEX, FAIRFAX, FALLS CHURCH, FALLSTON, FALMOUTH, FORT ASHBY, FRANKLIN, FREDERICK, FREDERICKSBURG, FRONT ROYAL, FROSTBURG, GAITHERSBURG, GERMANTOWN, GLEN BURNIE, GORDONSVILLE, GRANTSVILLE, GREENBELT, GREENFIELD, HAGERSTOWN, HARRISONBURG, HARRISONBURG, HAVRE DE GRACE, HERNDON, HUNTINGTOWN, JOPPATOWNE, KEYSER, LAUREL, LEESBURG, LEXINGTON PARK, LURAY, LUSBY, MADISON, MANASSAS, MANASSAS PARK, MARTINSBURG, MCLEAN, MONTEREY, MOOREFIELD, MOUNTAIN LAKE PARK, NORTH BEACH, OAKLAND, ODENTON, ORANGE, PARKVILLE, PAW PAW, PETERSBURG, PIKESVILLE, POTOMAC, PRINCE FREDERICK, RANDALLSTOWN, RESTON, ROCKVILLE, ROMNEY, SEVERN, SEVERNA PARK, SHENANDOAH, SHEPHERDSTOWN, SILVER SPRING, SOUTH GATE, SPOTSYLVANIA COURTHOUSE, ST. CHARLES, STANARDSVILLE, STANLEY, STAUNTON, STAUNTON, STERLING, STRASBURG, SUITLAND-SILVER HILL, TOWSON, WALDORF, WARRENTON, WASHINGTON, WASHINGTON, WAYNESBORO, WAYNESBORO, WESTMINSTER, WINCHESTER, WINCHESTER, WOODBRIDGE, AND WOODSTOCK.
Severe Thunderstorm Watch
Issued: 6:03 PM Jul. 9, 2025 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 497 IN EFFECT UNTIL 10 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS CHESAPEAKE BAY NORTH OF POOLES ISLAND MD CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA PATAPSCO RIVER INCLUDING BALTIMORE HARBOR CHESTER RIVER TO QUEENSTOWN MD EASTERN BAY CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER PATUXENT RIVER TO BROOMES ISLAND MD TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND
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