Severe Thunderstorm Watch — Calvert County, Maryland
Conditions favor the development of severe thunderstorms in and near the watch area.
Current Status
⛈️ Active: Severe Thunderstorm Watch
Severe Thunderstorm Watch issued August 10 at 3:58PM EDT until August 10 at 9:00PM EDT by NWS Baltimore MD/Washington DC
SEVERE THUNDERSTORM WATCH 555 REMAINS VALID UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THE DISTRICT OF COLUMBIA IN MARYLAND THIS WATCH INCLUDES 12 COUNTIES IN CENTRAL MARYLAND ANNE ARUNDEL HOWARD MONTGOMERY PRINCE GEORGES IN NORTH CENTRAL MARYLAND CARROLL FREDERICK IN NORTHEAST MARYLAND CECIL IN NORTHERN MARYLAND BALTIMORE BALTIMORE CITY HARFORD IN SOUTHERN MARYLAND CALVERT CHARLES IN VIRGINIA THIS WATCH INCLUDES 30 COUNTIES IN CENTRAL VIRGINIA ALBEMARLE CITY OF CHARLOTTESVILLE CITY OF FREDERICKSBURG GREENE KING GEORGE NELSON ORANGE SPOTSYLVANIA IN NORTHERN VIRGINIA ARLINGTON CITY OF ALEXANDRIA CITY OF FAIRFAX CITY OF FALLS CHURCH CITY OF MANASSAS CITY OF MANASSAS PARK CULPEPER FAIRFAX FAUQUIER LOUDOUN PRINCE WILLIAM STAFFORD IN NORTHWEST VIRGINIA MADISON PAGE RAPPAHANNOCK SHENANDOAH
Effective August 10, 2026 at 3:58 PM ET · Expires August 10, 2026 at 9:00 PM ET
Event Details
Event Type
Severe Thunderstorm Watch
Severity
severe
Issued By
NWS Baltimore MD/Washington DC
Expires
August 10, 2026 at 9:00 PM ET
Last Checked
1 minute ago
Also In Effect For
This same Severe Thunderstorm Watch also covers:
Other Active Alerts in Maryland
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Flash Flood Warning
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Get Severe Thunderstorm Watch Alerts for Calvert County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Watch mean for Calvert County, Maryland?
Conditions favor the development of severe thunderstorms in and near the watch area.
Is this Severe Thunderstorm Watch currently active?
Yes — this alert is active as of our last check (1 minute ago). It's set to expire August 10, 2026 at 9:00 PM ET.
How do I get notified about Severe Thunderstorm Watch alerts for Calvert County?
Download StormCast free on Google Play and set Calvert County, Maryland as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Severe Thunderstorm Watch is also in effect for Spotsylvania County, District of Columbia County, Stafford County, City of Fairfax County, City of Alexandria County, Culpeper County, Rappahannock County, Shenandoah County, Anne Arundel County, Cecil County, Charles County, Frederick County, Montgomery County, Prince Georges County, Baltimore City County, Albemarle County, Augusta County, King George County, Loudoun County, Carroll County, Nelson County, Prince William County, Rockingham County, City of Falls Church County.