Wind and Hail Hazards. Severe Weather Statement National Weather Service Baltimore MD/Washington DC 352 PM EDT FRI AUG 17 2018 MDC021-043-172015- /O.CON.KLWX.SV.W.0246.000000T0000Z-180817T2015Z/ Washington MD-Frederick MD- 352 PM EDT FRI AUG 17 2018 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 4:45 PM EDT FOR SOUTHEASTERN WASHINGTON AND WEST CENTRAL FREDERICK COUNTIES IN NORTH CENTRAL MARYLAND... At 352 PM EDT, a severe thunderstorm was located near Shepherdstown, moving northeast at 25 mph. HAZARD...60 mph wind gusts and HAIL.75IN 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... Hagerstown, Boonsboro, Saint James, Halfway, Keedysville, Sharpsburg, Fairplay, Rohrersville, Burkittsville, Gapland, Brownsville and Antietam. PRECAUTIONARY/PREPAREDNESS ACTIONS... Get indoors to protect yourself from wind and lightning. Trees around you may be downed from damaging winds, so if you are near large trees, move to an interior room on the lowest floor. Don`t drive underneath trees or in wooded areas until the threat has passed.