414  
FZUS53 KLOT 161500  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
1000 AM CDT WED JUL 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>742-162130-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
1000 AM CDT WED JUL 16 2025  
   
REST OF TODAY  
SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO  
20 KT. SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
WAVES 1 TO 2 FT.    
TONIGHT  
SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTHWEST  
OVERNIGHT. SCATTERED SHOWERS AND THUNDERSTORMS IN THE EVENING,  
THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1  
TO 2 FT.    
THURSDAY  
NORTHWEST WINDS 15 TO 20 KT BECOMING NORTH 20 TO  
25 KT IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING.  
WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT. A  
SMALL CRAFT ADVISORY WILL LIKELY BE NEEDED.    
THURSDAY NIGHT  
NORTH WINDS 15 TO 20 KT BECOMING NORTHEAST.  
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING PARTLY CLOUDY. WAVES  
4 TO 6 FT OCCASIONALLY TO 8 FT. A SMALL CRAFT ADVISORY WILL  
LIKELY BE NEEDED.  
 
 
 
LMZ743>745-162130-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
1000 AM CDT WED JUL 16 2025  
   
REST OF TODAY  
SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO  
20 KT LATE. ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
WAVES AROUND 1 FT.    
TONIGHT  
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST OVERNIGHT.  
SCATTERED SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN CHANCE  
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 1  
TO 2 FT BUILDING TO 2 TO 4 FT.    
THURSDAY  
NORTHWEST WINDS 15 TO 20 KT BECOMING NORTH 20 TO  
25 KT IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS. WAVES 3 TO 5 FT  
BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT. A SMALL CRAFT  
ADVISORY WILL LIKELY BE NEEDED.    
THURSDAY NIGHT  
NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST AND  
DIMINISHING TO 10 TO 15 KT. MOSTLY CLOUDY IN THE EVENING, THEN  
BECOMING PARTLY CLOUDY. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT. A  
SMALL CRAFT ADVISORY WILL LIKELY BE NEEDED.  
 
 
 
RC  
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