417  
FZUS53 KLOT 250259  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
959 PM CDT WED JUN 24 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>742-250915-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
959 PM CDT WED JUN 24 2026  
   
REST OF TONIGHT  
SOUTHWEST WINDS 10 TO 15 KT BECOMING WEST.  
SHOWERS AND THUNDERSTORMS LIKELY LATE IN THE EVENING, THEN SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 3  
FT.    
THURSDAY  
WEST WINDS AROUND 10 KT BECOMING EAST IN THE  
AFTERNOON. MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. WAVES AROUND 1 FT.   
THURSDAY NIGHT  
NORTHEAST WINDS AROUND 10 KT. MOSTLY CLOUDY.  
WAVES AROUND 1 FT.   
FRIDAY  
NORTHEAST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS  
IN THE MORNING, THEN CHANCE OF SHOWERS IN THE AFTERNOON. WAVES  
1 TO 2 FT.  
 
 
 
LMZ743>745-250915-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
959 PM CDT WED JUN 24 2026  
   
REST OF TONIGHT  
VARIABLE WINDS 10 TO 20 KT BECOMING SOUTHWEST  
AROUND 10 KT. SHOWERS WITH THUNDERSTORMS LIKELY LATE IN THE  
EVENING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER  
MIDNIGHT. WAVES 1 TO 2 FT. VARIABLE AND HIGHER WINDS AND WAVES  
LATE IN THE EVENING.   
THURSDAY  
WEST WINDS AROUND 10 KT BECOMING NORTHEAST IN THE  
AFTERNOON. MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. WAVES AROUND 1 FT.    
THURSDAY NIGHT  
NORTHEAST WINDS AROUND 10 KT. MOSTLY CLOUDY.  
WAVES AROUND 1 FT.    
FRIDAY  
NORTHEAST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS  
IN THE MORNING, THEN CHANCE OF SHOWERS IN THE AFTERNOON. WAVES  
1 TO 2 FT.  
 
 
 
RC  
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