914  
FZUS53 KLOT 180809  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
309 AM CDT SAT APR 18 2026  
 
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>742-182115-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
309 AM CDT SAT APR 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
EARLY THIS MORNING
 
NORTHWEST WINDS 20 TO 25 KT. CHANCE OF  
SHOWERS. WAVES 1 TO 3 FT.   
TODAY
 
NORTHWEST WINDS 20 TO 25 KT. CHANCE OF SHOWERS IN THE  
MORNING. WAVES 2 TO 4 FT.    
TONIGHT
 
WEST WINDS 20 TO 25 KT BECOMING SOUTHWEST AND  
DIMINISHING TO 10 TO 15 KT IN THE EVENING. MOSTLY CLEAR. WAVES 2  
TO 4 FT SUBSIDING TO 1 TO 2 FT.    
SUNDAY
 
WEST WINDS 10 TO 20 KT BECOMING NORTHWEST AND INCREASING  
TO 15 TO 25 KT IN THE AFTERNOON. CHANCE OF SHOWERS IN THE  
AFTERNOON. WAVES 1 TO 2 FT.   
SUNDAY NIGHT
 
NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH  
OVERNIGHT. PARTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 TO  
2 FT.  
 

 
 
LMZ743>745-182115-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
309 AM CDT SAT APR 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
EARLY THIS MORNING
 
SOUTHWEST WINDS 15 TO 25 KT BECOMING  
NORTHWEST AND INCREASING TO 20 TO 25 KT AROUND DAYBREAK. CHANCE  
OF SHOWERS. WAVES 2 TO 4 FT.   
TODAY
 
NORTHWEST WINDS 20 TO 25 KT. CHANCE OF SHOWERS IN THE  
MORNING. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT.    
TONIGHT
 
WEST WINDS 20 TO 25 KT DIMINISHING TO 10 TO 15 KT.  
MOSTLY CLEAR. WAVES 3 TO 5 FT SUBSIDING TO 1 TO 3 FT.    
SUNDAY
 
SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTHWEST AND  
INCREASING TO 15 TO 25 KT IN THE AFTERNOON. CHANCE OF SHOWERS IN  
THE AFTERNOON. WAVES 1 TO 3 FT.    
SUNDAY NIGHT
 
NORTH WINDS 10 TO 15 KT. PARTLY CLOUDY IN THE  
EVENING, THEN BECOMING MOSTLY CLEAR. WAVES 1 TO 2 FT.  
 

 
 
CARLAW  
 
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