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Ended official alertUpdated

Severe Thunderstorm Warning for Calvert, MD; St. Marys, MD

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Applies to
Calvert, St. Marys
Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 933 PM EDT, a severe thunderstorm was located 8 miles east of Patuxent River Naval Air Station, or 8 miles east of Lexington Park, moving east at 30 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...

What the bulletin says to do

For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is 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.

Read official NWS bulletin

Full official description

Bulletin details

At 933 PM EDT, a severe thunderstorm was located 8 miles east of Patuxent River Naval Air Station, or 8 miles east of Lexington Park, moving east at 30 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... Lexington Park, Chesapeake Ranch Estates, Piney Point, Tall Timbers, Saint Inigoes Creek, Cuckold Creek, Saint Marys City, Town Creek, Saint Marys River, Saint Leonard Creek, California, Lusby, Patuxent River Naval Air Station, Drum Point, Valley Lee, Scotland, Great Mills, Drayden, Saint Inigoes, and Park Hall.

Lifecycle record

Official revisions

2 captured
  1. Update

    Severe Thunderstorm Warning issued August 17 at 9:33PM EDT until August 17 at 9:45PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  2. Alert

    Severe Thunderstorm Warning issued August 17 at 9:03PM EDT until August 17 at 9:45PM EDT by NWS Baltimore MD/Washington DC

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Baltimore MD/Washington DC. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections