Maryland Severe Severe Thunderstorm Warning | Effective 07/21/2026 13:44

Headline: 
Severe Thunderstorm Warning issued July 21 at 4:44PM EDT until July 21 at 5:15PM EDT by NWS Baltimore MD/Washington DC
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
July 21, 2026 - 1:44pm
Expires: 
July 21, 2026 - 2:15pm
Description: 
SVRLWX The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Anne Arundel County in central Maryland... Northwestern Calvert County in southern Maryland... East central Prince Georges County in central Maryland... * Until 515 PM EDT. * At 444 PM EDT, a severe thunderstorm was located near Upper Marlboro, moving northeast at 45 mph. HAZARD...70 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... Bowie, Severn, Annapolis, Crofton, Mayo, Shady Side, Deale, Naval Academy, Upper Marlboro, Severn River, South River, Sillery Bay, Rhode River, Magothy River, Dobbins Island, Glen Burnie, Severna Park, Odenton, Pasadena, and Arnold.
Instruction: 
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.
Area Description: 
Anne Arundel, MD; Calvert, MD; Prince Georges, MD
Forcast Office: 
NWS Baltimore MD/Washington DC