Hazardous Weather Outlook
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
054 FLUS41 KLWX 122005 HWOLWX Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 405 PM EDT Mon May 12 2025 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ053>057-527-132015- 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- 405 PM EDT Mon May 12 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...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday There is the potential for isolated to scattered instances of flooding due to periods of heavy rain Tuesday into Wednesday. A Flood Watch is in effect for most of northern Virginia Tuesday and Tuesday night. Severe thunderstorms capable of producing damaging winds and hail are possible Friday, but confidence is low at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. $$ MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- 526-WVZ050>053-055-132015- Washington-Frederick MD-Carroll-Northern Baltimore- Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta- Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-Nelson- Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun-Northern Virginia Blue Ridge- Central Virginia Blue Ridge-Northwest Prince William-Hampshire- Morgan-Berkeley-Jefferson-Hardy- 405 PM EDT Mon May 12 2025 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...Tonight A Flood Watch is in effect tonight for most locations south of the Potomac River. Isolated instances of flooding are possible elsewhere. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The Flood Watch continues through Tuesday evening. Isolated to scattered instances of flooding due to periods of heavy rain are otherwise possible across the area through Wednesday. Severe thunderstorms capable of producing damaging winds and hail are possible Friday, but confidence is low at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. $$ MDZ501-502-509-510-VAZ503-504-WVZ501>506-132015- 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- 405 PM EDT Mon May 12 2025 This Hazardous Weather Outlook is for the Allegheny Front counties in western Maryland, eastern West Virginia, and Highland County Virginia. .DAY ONE...Tonight There is the potential for isolated instances of flooding due to periods of heavy rain tonight. A Flood Watch is in effect for much of the area. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The Flood Watch continues through Tuesday evening. Elsewhere, there is the potential for isolated to scattered instances of flooding due to periods of heavy rain Tuesday into Wednesday. Severe thunderstorms capable of producing damaging winds and hail are possible Friday, but confidence is low at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. $$ DHOF