WFO BALTIMORE MD./WASHINGTON D.C. Warnings, Watches and Advisories for Thursday, June 19, 2025

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SEVERE THUNDERSTORM WARNING

The National Weather Service in Sterling Virginia has issued a

* Severe Thunderstorm Warning for...

South central Carroll County in north central Maryland...

Northwestern Howard County in central Maryland...

Montgomery County in central Maryland...

Southeastern Frederick County in north central Maryland...

Loudoun County in northern Virginia...

North central Fairfax County in northern Virginia...

North central Fauquier County in northern Virginia...

Northwestern Prince William County in northern Virginia...

* Until 400 PM EDT.

* At 327 PM EDT, a severe thunderstorm was located near Purcellville,

or near Leesburg, moving east at 50 mph.

HAZARD...Emergency management reports a history of downed trees

with this line of storms.

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, Leesburg, Olney, Damascus,

Broadlands, Lansdowne, Lowes Island, Brambleton, Poolesville, Aspen

Hill, Potomac, Ashburn, Montgomery Village, Eldersburg, Sterling,

North Potomac, Ballenger Creek, and Redland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

building.

Large hail, damaging wind, and continuous cloud to ground lightning

are occurring with this storm. Move indoors immediately. Lightning is

one of nature's leading killers. Remember, if you can hear thunder,

you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to

flash flooding. Do not drive your vehicle through flooded roadways.

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