276  
WHUS53 KLOT 170419  
SMWLOT  
LMZ740-741-777-779-170515-  
/O.NEW.KLOT.MA.W.0039.250817T0419Z-250817T0515Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE  
1119 PM CDT SAT AUG 16 2025  
 
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
 
NEARSHORE WATERS FROM WINTHROP HARBOR TO NORTHERLY ISLAND...  
OPEN WATERS FROM WINTHROP HARBOR TO MICHIGAN CITY OUT TO MID  
LAKE...  
 
* UNTIL 1215 AM CDT.  
 
* AT 1119 PM CDT, STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE  
EXTENDING FROM NEAR WAUKEGAN HARBOR TO 12 NM EAST OF MCHENRY,  
MOVING SOUTHEAST AT 30 KNOTS.  
 
HAZARD...WIND GUSTS TO 40 KNOTS.  
 
SOURCE...RADAR.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
BELMONT HARBOR, MONTROSE HARBOR, WAUKEGAN HARBOR, AND WILMETTE  
HARBOR.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 

 
 
LAT...LON 4237 8783 4237 8782 4236 8782 4239 8780  
4240 8758 4206 8711 4194 8763 4196 8764  
4196 8763 4199 8766 4206 8767 4214 8775  
4227 8783  
TIME...MOT...LOC 0419Z 335DEG 29KT 4232 8778 4226 8803  
 
HAIL...0.00IN  
WIND...40KTS  
 

 
 
IZZI  
 
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