Severe Thunderstorm Warning until 06:30PM 
SVRLWX The National Weather Service in Sterling Virginia has issued a
* Severe Thunderstorm Warning for... St. Marys County in southern Maryland... Calvert County in southern Maryland... Southern Prince Georges County in central Maryland... Charles County in southern Maryland... Northeastern King George County in central Virginia... Southeastern Fairfax County in northern Virginia...
* Until 630 PM EDT.
* At 543 PM EDT, severe thunderstorms were located along a line extending from near Port Tobacco River to near Wicomico River to near Montross, moving east at 45 mph. HAZARD...60 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... Abell, Valley Lee, Saint Inigoes Creek, Sandgates, Sotterley, Bryantown, Saint Charles, Lexington Park, Park Hall, Loveville, Popes Creek, Barstow, Hallowing Point, Potomac Heights, Marbury, Saint Leonard Creek, Compton, Waldorf, Aquasco, and Dentsville.
* AFFECTED AREAS: CALVERT, MD ... CHARLES, MD ... PRINCE GEORGES, MD ... ST. MARYS, MD ... FAIRFAX, VA ... KING GEORGE, VA
Instructions:
For your protection move to an interior room on the lowest floor of a building.
Address/Location
St. Mary's County Sheriff's Office
23150 Leonard Hall Dr
Leonardtown, MD 20650
Contact
Emergency: 9-1-1
Non-emergencies: 301-475-8008