Note: The Severe Thunderstorm Warning has expired for the DC region. The most recent warning issuance before the expiration is below.
A Severe Thunderstorm Warning is in effect to 7 pm Sunday, August 17, 2025 including the following jurisdictions.
MARYLAND: west central Howard, Montgomery, southeastern Frederick.
VIRGINIA: northeastern Loudoun, north central Fairfax.
Excerpted from the National Weather Service:
The National Weather Service in Sterling Virginia has issued a
Severe Thunderstorm Warning for…
West central Howard County in central Maryland…
Montgomery County in central Maryland…
Southeastern Frederick County in north central Maryland…
Northeastern Loudoun County in northern Virginia…
North central Fairfax County in northern Virginia…
Until 700 PM EDT.
At 612 PM EDT, severe thunderstorms were located along a line extending from near Ballenger Creek to near Point Of Rocks to near Leesburg, moving east at 25 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, Gaithersburg, Reston, Leesburg, Olney, Damascus, Lansdowne, Lowes Island, Poolesville, Aspen Hill, Potomac, Ashburn, Montgomery Village, Sterling, North Potomac, Redland, Wolf Trap, Great Falls, and Countryside.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Prepare immediately for damaging winds. People outside should move immediately to shelter inside a strong building. Stay away from windows.