Full Notification

The National Weather Service in Sterling Virginia has issued a

* Severe Thunderstorm Warning for... Eastern Washington County in north central Maryland... Carroll County in north central Maryland... Northwestern Howard County in central Maryland... Montgomery County in central Maryland... Frederick County in north central Maryland... Northwestern Baltimore County in northern Maryland... Loudoun County in northern Virginia... Northeastern Fairfax County in northern Virginia... East central Clarke County in northwestern Virginia... Southeastern Jefferson County in the Panhandle of West Virginia...

* Until 515 PM EDT.

* At 424 PM EDT, severe thunderstorms were located along a line extending from near Thurmont to 7 miles north of Linden, moving east at 55 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Emergency management reports widespread wind damage with this line of storms across MD and northern VA. 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... Germantown, Frederick, Rockville, Bethesda, Gaithersburg, Reston, Leesburg, Olney, Herndon, Westminster, Damascus, Broadlands, Lansdowne, Lowes Island, Thurmont, Poolesville, Emmitsburg, Mclean, American Legion Bridge and Harry Grove Stadium.

* AFFECTED AREAS: BALTIMORE, MD ... CARROLL, MD ... FREDERICK, MD ... HOWARD, MD ... MONTGOMERY, MD ... WASHINGTON, MD ... CLARKE, VA ... FAIRFAX, VA ... LOUDOUN, VA ... JEFFERSON, WV

Instructions:

For your protection move to an interior room on the lowest floor of a building. Large hail and damaging winds and continuous cloud to ground lightning is occurring with these storms. 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. A Tornado Watch remains in effect until 900 PM EDT for northern, central and north central Maryland...northern and northwestern Virginia...and the Panhandle of West Virginia.