695  
WHUS51 KLWX 202038  
SMWLWX  
ANZ534-537-543-202215-  
/O.NEW.KLWX.MA.W.0152.170720T2038Z-170720T2215Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
438 PM EDT THU JUL 20 2017  
 
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA...  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH  
ISLAND...  
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA...  
 
* UNTIL 615 PM EDT  
 
* AT 438 PM EDT...A STRONG THUNDERSTORM AND IT ASSOCIATED OUTFLOW  
BOUNDARY WAS LOCATED OVER MOUTH OF THE POTOMAC RIVER...MOVING EAST  
AT 20 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...  
EWELL...  
TANGIER SOUND...  
POINT LOOKOUT...  
SMITH ISLAND...  
MOUTH OF THE POTOMAC RIVER...  
DEEP HOLE...  
SOUTHWEST MIDDLE GROUNDS...  
DEAL ISLAND...  
AND CRISFIELD.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 

 
 
LAT...LON 3796 7638 3803 7641 3810 7640 3807 7633  
3812 7635 3817 7595 3814 7596 3814 7579  
3808 7588 3808 7578 3802 7584 3803 7587  
3797 7590 3796 7586 3795 7589 3790 7591  
3789 7624  
TIME...MOT...LOC 2038Z 253DEG 18KT 3796 7631  
 
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
BJL  
 
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