040  
WHUS51 KLWX 122218  
SMWLWX  
ANZ536-122300-  
/O.NEW.KLWX.MA.W.0366.190912T2218Z-190912T2300Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
618 PM EDT THU SEP 12 2019  
 
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD...  
 
* UNTIL 700 PM EDT.  
 
* AT 618 PM EDT, A STRONG THUNDERSTORM WAS LOCATED OVER LEESYLVANIA  
STATE PARK, MOVING SOUTHEAST AT 15 KNOTS.  
 
HAZARD...WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...BOATERS IN SMALL CRAFT COULD BE THROWN OVERBOARD BY  
SUDDENLY HIGHER WINDS AND WAVES CAPSIZING THEIR VESSEL.  
 
* LOCATIONS IMPACTED INCLUDE...  
QUANTICO, INDIAN HEAD, WIDEWATER, OCCOQUAN BAY AND LEESYLVANIA  
STATE PARK.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 

 
 
LAT...LON 3849 7733 3866 7724 3859 7714 3851 7725  
3843 7724 3841 7733  
TIME...MOT...LOC 2218Z 324DEG 16KT 3861 7729  
 
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
MM  
 
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