558  
FZUS53 KLOT 131446  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
946 AM CDT SUN JUL 13 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>742-132130-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
946 AM CDT SUN JUL 13 2025  
   
REST OF TODAY
 
WEST WINDS 5 TO 10 KT BECOMING EAST LATE. MOSTLY  
CLOUDY. WAVES 1 FT OR LESS.    
TONIGHT
 
SOUTHEAST WINDS AROUND 5 KT BECOMING SOUTHWEST  
OVERNIGHT. PARTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 FT  
OR LESS.    
MONDAY
 
SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTHEAST IN THE  
AFTERNOON. SUNNY. WAVES 1 FT OR LESS.    
MONDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH  
OVERNIGHT. MOSTLY CLEAR. WAVES 1 FT OR LESS.  
 

 
 
LMZ743>745-132130-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
946 AM CDT SUN JUL 13 2025  
   
REST OF TODAY
 
WEST WINDS 5 TO 10 KT BECOMING NORTHEAST LATE.  
MOSTLY CLOUDY. WAVES AROUND 1 FT.    
TONIGHT
 
EAST WINDS AROUND 5 KT BECOMING SOUTHWEST OVERNIGHT.  
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 FT OR LESS.    
MONDAY
 
SOUTHWEST WINDS 5 TO 10 KT BECOMING NORTHEAST IN THE  
AFTERNOON. SUNNY. WAVES 1 FT OR LESS.    
MONDAY NIGHT
 
EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST  
OVERNIGHT. MOSTLY CLEAR. WAVES 1 FT OR LESS.  
 

 
 
YACK  
 
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