Alert: Severe Thunderstorm Warning issued August 12 at 5:56PM EDT expiring August 12 at 6:45PM EDT by NWS Baltimore MD/Washington DC

Event: Severe Thunderstorm Warning
Sender Name: NWS Baltimore MD/Washington DC
Issued: 2017-08-12T17:56:15-04:00
Expires: 2017-08-12T18:45:00-04:00
Description: The National Weather Service in Sterling Virginia has issued a

* Severe Thunderstorm Warning for…
South central Carroll County in north central Maryland…
Western Howard County in central Maryland…
Northeastern Montgomery County in central Maryland…
Southeastern Frederick County in north central Maryland…

* Until 645 PM EDT

* At 555 PM EDT, a severe thunderstorm was located over Green Valley,
or 7 miles north of Damascus, moving east at 25 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…
Columbia, Damascus, Eldersburg, Mount Airy, Sykesville, New Market,
Green Valley, Linganore-Bartonsville, Highland, Monrovia,
Clarksville, Henryton, West Friendship, Lisbon, Glenwood, Dayton,
Gaither, Watersville, Poplar Springs and Roxbury Mills.

Instruction: 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.

Link to more Info: http://www.weather.gov
Urgency: Immediate
Severity: Severe
Certainty: Observed
Categories: Met,
Area Description: Howard; Carroll; Montgomery; Frederick

Message Identifier: NWS-IDP-PROD-2484815-2319874
CAP MessageType: Alert