883  
FZUS53 KLOT 151459  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
959 AM CDT MON SEP 15 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS, WHICH  
IS THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVES, ALONG WITH THE  
AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL  
OCCASIONALLY BE ENCOUNTERED.  
 
LMZ740>742-152115-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
959 AM CDT MON SEP 15 2025  
   
REST OF TODAY
 
SOUTHEAST WINDS 10 TO 15 KT BECOMING NORTHEAST  
THIS AFTERNOON. SUNNY. WAVES 1 TO 3 FT.    
TONIGHT
 
NORTHEAST WINDS 10 TO 15 KT BECOMING SOUTHEAST 5 TO  
10 KT OVERNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FT.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 10 KT BECOMING NORTHEAST IN THE  
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FT.    
TUESDAY NIGHT
 
NORTHEAST WINDS 5 TO 10 KT. MOSTLY CLEAR. WAVES  
AROUND 1 FT.  
 

 
 
LMZ743>745-152115-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
959 AM CDT MON SEP 15 2025  
   
REST OF TODAY
 
EAST WINDS 10 TO 15 KT BECOMING NORTHEAST THIS  
AFTERNOON. SUNNY. WAVES 1 TO 2 FT.    
TONIGHT
 
NORTHEAST WINDS 10 TO 15 KT BECOMING SOUTHEAST 5 TO  
10 KT OVERNIGHT. CLEAR. WAVES 1 TO 2 FT.    
TUESDAY
 
EAST WINDS AROUND 5 KT BECOMING NORTHEAST IN THE  
AFTERNOON. MOSTLY SUNNY. WAVES AROUND 1 FT.    
TUESDAY NIGHT
 
NORTHEAST WINDS 5 TO 10 KT BECOMING EAST  
OVERNIGHT. MOSTLY CLEAR. WAVES AROUND 1 FT.  
 

 
 
MDB  
 
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