431  
FZUS53 KLOT 161413  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
913 AM CDT TUE SEP 16 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>742-162115-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
913 AM CDT TUE SEP 16 2025  
   
REST OF TODAY
 
EAST WINDS 5 TO 10 KT. MOSTLY SUNNY. WAVES 1 TO  
2 FT.    
TONIGHT
 
NORTHEAST WINDS 5 TO 10 KT. MOSTLY CLEAR. WAVES 1 TO  
2 FT.    
WEDNESDAY
 
NORTHEAST WINDS 5 TO 10 KT. MOSTLY SUNNY. WAVES  
AROUND 1 FT.    
WEDNESDAY NIGHT
 
NORTHEAST WINDS 5 TO 10 KT BECOMING SOUTHEAST  
OVERNIGHT. MOSTLY CLEAR. WAVES AROUND 1 FT.  
 

 
 
LMZ743>745-162115-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
913 AM CDT TUE SEP 16 2025  
   
REST OF TODAY
 
NORTHEAST WINDS AROUND 5 KT BECOMING NORTH 10 TO  
15 KT IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FT.    
TONIGHT
 
NORTHEAST WINDS 5 TO 10 KT BECOMING EAST OVERNIGHT.  
MOSTLY CLEAR. WAVES 1 TO 2 FT.    
WEDNESDAY
 
EAST WINDS 5 TO 10 KT BECOMING NORTH IN THE  
AFTERNOON. SUNNY. WAVES AROUND 1 FT.    
WEDNESDAY NIGHT
 
NORTHEAST WINDS 5 TO 10 KT BECOMING SOUTHEAST  
OVERNIGHT. MOSTLY CLEAR. WAVES AROUND 1 FT.  
 

 
 
KLUBER  
 
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