NWS Baltimore MD/Washington DCSV.W 0497September 3, 2026
Severe Thunderstorm Warning: Montgomery, Fairfax and Loudoun, MD and VA
The National Weather Service office in Baltimore MD/Washington issued a severe thunderstorm warning for Montgomery, Fairfax and Loudoun in Maryland, Virginia, which was in force until 12:00 a.m. local time on September 4. It was the 497th severe thunderstorm warning the NWS office in Baltimore MD/Washington issued in 2026. Maryland had 32 severe thunderstorm warnings in September 2026, against 15 in an average September of 2008-2025 (Maryland's severe thunderstorm warnings by year).
ExpiredWarning
In force for 47 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Baltimore MD/Washington DC
- Area
- Montgomery, Fairfax and Loudoun
- State
- Maryland
- Level
- Warning
- Issued
- 11:13 p.m. EDT, September 3, 2026
- Expires
- 12:00 a.m. EDT, September 4, 2026
- CAP severity, certainty, urgency
- Severe, Observed, Immediate
- VTEC event
- KLWX SV.W 0497
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SVRLWX The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Southwestern Montgomery County in central Maryland... Southeastern Loudoun County in northern Virginia... Northern Fairfax County in northern Virginia... * Until midnight EDT. * At 1113 PM EDT, severe thunderstorms were located along a line extending from near Leesburg to Arcola, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles. * Locations impacted include... Germantown, Rockville, Bethesda, Gaithersburg, Reston, Leesburg, South Riding, Herndon, Broadlands, Lansdowne, Lowes Island, Brambleton, Poolesville, American Legion Bridge, Mclean, Dulles International Airport, Aspen Hill, Potomac, North Bethesda, and Ashburn.
What the agency told people to do
For your protection move to an interior room on the lowest floor of a building.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.