412
FLUS41 KLWX 181945
HWOLWX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
345 PM EDT FRI JUL 18 2025
ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ053>057-527-191945-
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-DISTRICT OF COLUMBIA-CECIL-SOUTHERN BALTIMORE-
PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-
CENTRAL AND SOUTHEAST MONTGOMERY-CENTRAL AND SOUTHEAST HOWARD-
SOUTHEAST HARFORD-FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-
STAFFORD-SPOTSYLVANIA-KING GEORGE-
CENTRAL AND SOUTHEAST PRINCE WILLIAM/MANASSAS/MANASSAS PARK-
345 PM EDT FRI JUL 18 2025
THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE
CHESAPEAKE BAY, TIDAL POTOMAC RIVER, AND I-95 CORRIDOR THROUGH
CENTRAL MARYLAND, NORTHERN VIRGINIA, AND DISTRICT OF COLUMBIA.
DAY ONE
THIS AFTERNOON AND TONIGHT
A FLOOD WATCH IS IN EFFECT FROM PRINCE WILLIAM COUNTY SOUTHWARD
FROM NOON TO MIDNIGHT TONIGHT. THUNDERSTORMS PRODUCING HEAVY
RAINFALL COULD RESULT IN ISOLATED TO SCATTERED INSTANCES OF FLASH
FLOODING.
ISOLATED FLASH FLOODING IS ALSO POSSIBLE IN THE D.C. METRO THIS
EVENING.
AN ISOLATED SEVERE THUNDERSTORM OR TWO, CAPABLE OF PRODUCING
DAMAGING WIND GUSTS, ARE POSSIBLE SOUTH OF WASHINGTON DC.
DAYS TWO THROUGH SEVEN
SATURDAY THROUGH THURSDAY
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
SPOTTER INFORMATION STATEMENT
SPOTTERS SHOULD ACTIVATE THIS AFTERNOON AND EVENING. REPORT
INSTANCES OF FLOODING AND WIND DAMAGE TO THE NATIONAL WEATHER
SERVICE IN STERLING, VA.
MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508-
526-WVZ050>053-055-191945-
WASHINGTON-FREDERICK MD-CARROLL-NORTHERN BALTIMORE-
NORTHWEST MONTGOMERY-NORTHWEST HOWARD-NORTHWEST HARFORD-AUGUSTA-
ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-
ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-ORANGE-CULPEPER-
NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN LOUDOUN-
EASTERN LOUDOUN-NORTHERN VIRGINIA BLUE RIDGE-
CENTRAL VIRGINIA BLUE RIDGE-NORTHWEST PRINCE WILLIAM-HAMPSHIRE-
MORGAN-BERKELEY-JEFFERSON-HARDY-
345 PM EDT FRI JUL 18 2025
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN WEST
VIRGINIA, NORTHERN AND CENTRAL VIRGINIA, AND CENTRAL AND WESTERN
MARYLAND.
DAY ONE
THIS AFTERNOON AND TONIGHT
A FLOOD WATCH IS IN EFFECT FROM NOON TO MIDNIGHT TONIGHT FOR MOST
AREAS SOUTH OF THE POTOMAC RIVER. THUNDERSTORMS PRODUCING HEAVY
RAINFALL COULD RESULT IN ISOLATED TO SCATTERED INSTANCES OF FLASH
FLOODING. SIGNIFICANT FLASH FLOODING IS POSSIBLE IN THE CENTRAL
SHENANDOAH VALLEY.
A FEW SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WIND
GUSTS ARE POSSIBLE THIS AFTERNOON AND EVENING, MAINLY SOUTH OF
INTERSTATE 66.
DAYS TWO THROUGH SEVEN
SATURDAY THROUGH THURSDAY
ISOLATED TO SCATTERED INSTANCES OF FLOODING ARE POSSIBLE SATURDAY
AFTERNOON AND EVENING, MAINLY SOUTH OF INTERSTATE 66 AND ROUTE 48.
SPOTTER INFORMATION STATEMENT
SPOTTERS SHOULD ACTIVATE THIS AFTERNOON AND EVENING. REPORT
INSTANCES OF FLOODING AND WIND DAMAGE TO THE NATIONAL WEATHER
SERVICE IN STERLING, VA.
MDZ501-502-509-510-VAZ503-504-WVZ501>506-191945-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-
WESTERN GARRETT-EASTERN GARRETT-WESTERN HIGHLAND-EASTERN HIGHLAND-
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
WESTERN PENDLETON-EASTERN PENDLETON-
345 PM EDT FRI JUL 18 2025
THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ALLEGHENY FRONT
COUNTIES IN WESTERN MARYLAND, EASTERN WEST VIRGINIA, AND HIGHLAND
COUNTY VIRGINIA.
DAY ONE
THIS AFTERNOON AND TONIGHT
A FLOOD WATCH IS IN EFFECT FOR FROM NOON TO MIDNIGHT TONIGHT.
THUNDERSTORMS PRODUCING HEAVY RAINFALL COULD RESULT IN ISOLATED TO
SCATTERED INSTANCES OF FLASH FLOODING.
A SEVERE THUNDERSTORM OR TWO, CAPABLE OF PRODUCING DAMAGING WIND
GUSTS, ARE POSSIBLE THIS AFTERNOON.
DAYS TWO THROUGH SEVEN
SATURDAY THROUGH THURSDAY
ISOLATED TO SCATTERED INSTANCES OF FLOODING ARE POSSIBLE SATURDAY
AFTERNOON AND EVENING, MAINLY SOUTH OF ROUTE 48.
SPOTTER INFORMATION STATEMENT
SPOTTERS SHOULD ACTIVATE THIS AFTERNOON AND EVENING. REPORT
INSTANCES OF FLOODING AND WIND DAMAGE TO THE NATIONAL WEATHER
SERVICE IN STERLING, VA.
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