WFO BALTIMORE MD./WASHINGTON D.C. Warnings, Watches and Advisories for Monday, August 10, 2026

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SEVERE THUNDERSTORM WARNING

The National Weather Service in Sterling Virginia has issued a

* Severe Thunderstorm Warning for...

Northwestern Montgomery County in central Maryland...

Southern Frederick County in north central Maryland...

Loudoun County in northern Virginia...

* Until 415 PM EDT.

* At 315 PM EDT, severe thunderstorms were located along a line

extending from near Brunswick to near Purcellville to near

Bluemont, moving east at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

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, Leesburg, Damascus, Broadlands, Lansdowne, Lowes

Island, Brambleton, Poolesville, Ashburn, Sterling, Ballenger

Creek, Great Falls, Countryside, Mount Airy, Purcellville,

Brunswick, Round Hill, Oatlands, Green Valley, and Boyds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a

building.

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT

FOR SOUTHEASTERN WASHINGTON...NORTHEASTERN JEFFERSON AND NORTHERN

BERKELEY COUNTIES...

At 318 PM EDT, severe thunderstorms with a history of producing wind

damage were located along a line extending from Williamsport to 8

miles west of Saint James to near Martinsburg, moving east at 20 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...

Martinsburg, Shepherdstown, Boonsboro, Williamsport, Mount Aetna,

Mount Lena, San Mar, Kearneysville, Saint James, Berkeley, Halfway,

Keedysville, Funkstown, Falling Waters, Sharpsburg, Fairplay,

Rohrersville, Gapland, Brownsville, and Antietam.

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