630  
WUUS51 KLWX 212201  
SVRLWX  
MDC013-021-027-212245-  
/O.NEW.KLWX.SV.W.0312.181221T2201Z-181221T2245Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WARNING  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
501 PM EST FRI DEC 21 2018  
 
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A  
 
* SEVERE THUNDERSTORM WARNING FOR...  
CARROLL COUNTY IN NORTH CENTRAL MARYLAND...  
NORTHWESTERN HOWARD COUNTY IN CENTRAL MARYLAND...  
NORTHEASTERN FREDERICK COUNTY IN NORTH CENTRAL MARYLAND...  
 
* UNTIL 545 PM EST.  
 
* AT 500 PM EST, A SEVERE THUNDERSTORM WAS LOCATED OVER MOUNT AIRY,  
OR 9 MILES NORTH OF DAMASCUS, MOVING NORTHEAST AT 50 MPH.  
 
HAZARD...60 MPH WIND GUSTS.  
 
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...  
FREDERICK, WESTMINSTER, THURMONT, EMMITSBURG, ELDERSBURG, BALLENGER  
CREEK, MOUNT AIRY, TANEYTOWN, WALKERSVILLE, MANCHESTER, NEW MARKET,  
DISCOVERY-SPRING GARDEN, GREEN VALLEY, LINGANORE-BARTONSVILLE, NEW  
WINDSOR, WOODSBORO, UNION BRIDGE, LIBERTYTOWN, MONROVIA AND  
WINFIELD.  
 
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.  
 

 
 
LAT...LON 3926 7708 3928 7714 3929 7714 3931 7717  
3934 7719 3933 7723 3940 7738 3972 7745  
3972 7686  
TIME...MOT...LOC 2200Z 202DEG 46KT 3941 7716  
 
HAIL...<.75IN  
WIND...60MPH  
 

 
 
BKF  
 
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