619  
FZUS53 KLOT 112007  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
307 PM CDT THU SEP 11 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>742-120600-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
307 PM CDT THU SEP 11 2025  
   
LATE THIS AFTERNOON
 
NORTHEAST WINDS 10 TO 15 KT. SUNNY. WAVES  
1 TO 3 FT.    
TONIGHT
 
EAST WINDS 5 TO 10 KT. PATCHY DENSE FOG. WAVES 1 TO 3  
SUBSIDING TO 1 TO 2 FT AFTER MIDNIGHT.   
FRIDAY
 
EAST WINDS 5 TO 10 KT. PATCHY DENSE FOG IN THE MORNING.  
WAVES 1 TO 2 FT.   
FRIDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH  
OVERNIGHT. INCREASING CLOUDINESS. WAVES 1 TO 2 FT.    
SATURDAY
 
SOUTH WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. WAVES 1 TO 2 FT.  
 

 
 
LMZ743>745-120600-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
307 PM CDT THU SEP 11 2025  
   
LATE THIS AFTERNOON
 
NORTH WINDS 5 TO 10 KT. SUNNY. WAVES 1 TO  
3 FT.    
TONIGHT
 
NORTHEAST WINDS 5 TO 10 KT. PATCHY DENSE FOG. WAVES 1  
TO 2 FT.   
FRIDAY
 
SOUTHEAST WINDS 5 TO 10 KT BECOMING NORTHEAST IN THE  
AFTERNOON. PATCHY DENSE FOG IN THE MORNING. WAVES 1 TO 2 FT.    
FRIDAY NIGHT
 
EAST WINDS 5 TO 10 KT BECOMING SOUTH OVERNIGHT.  
INCREASING CLOUDINESS. WAVES 1 TO 2 FT.    
SATURDAY
 
SOUTH WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. WAVES AROUND 1 FT.  
 

 
DK  
 
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