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...

Northeastern Washington County in north central Maryland...

Carroll County in north central Maryland...

Northern Frederick County in north central Maryland...

* Until 415 PM EDT.

* At 309 PM EDT, severe thunderstorms with a history of producing

wind damage were located along a line extending from near Carroll

Valley to near Smithsburg to near Saint James, moving east at 40

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...

Hagerstown, Westminster, Thurmont, Emmitsburg, Municipal Stadium,

Robinwood, Taneytown, Hampstead, Walkersville, Fountainhead-Orchard

Hills, Manchester, Boonsboro, Smithsburg, Paramount-Long Meadow,

Wilson-Conococheague, Williamsport, Mount Aetna, Mount Lena, San

Mar, and Long Meadow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

building.

* Flash Flood Warning for...

Northwestern Frederick County in north central Maryland...

* Until 615 PM EDT.

* At 312 PM EDT, Doppler radar indicated thunderstorms producing

heavy rain across the warned area. Between 1.5 and 3 inches of

rain have fallen. Additional rainfall amounts of 1 to 2.5 inches

are possible in the warned area. Flash flooding is ongoing or

expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban

areas, highways, streets and underpasses as well as

other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...

Hagerstown... Thurmont...

Municipal Stadium... Robinwood...

Fountainhead-Orchard Hills... Smithsburg...

Paramount-Long Meadow... Long Meadow...

Maugansville... Cavetown...

Leitersburg... Sabillasville...

Fort Ritchie... Chewsville...

Ringgold... Middleburg...

Cascade... Highfield...

Bridgeport...

Turn around, don't drown when encountering flooded roads. Most flood

deaths occur in vehicles.

Central Harford County in northern Maryland...

* Until 400 PM EDT.

* At 312 PM EDT, a severe thunderstorm was located over Bel Air

South, or 8 miles west of Aberdeen, moving east at 40 mph.

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

Aberdeen, Havre De Grace, Aberdeen Proving Ground, Bel Air South,

Bel Air North, Fallston, Riverside, Pleasant Hills, Perryman,

Edgewood, Benson, Churchville, Carsins, Forest Hill, Bynum, Harford

Furnace, Abingdon, Belcamp, and Hickory.

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