904  
FZUS53 KLOT 140241  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
941 PM CDT SUN SEP 13 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.  
 
LMZ740-741-140915-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
941 PM CDT SUN SEP 13 2026  
   
REST OF TONIGHT  
NORTHWEST WINDS AROUND 10 KT BECOMING NORTH.  
CLEAR. WAVES 1 TO 3 FT.    
MONDAY  
SOUTHEAST WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT IN  
THE AFTERNOON. PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY  
CLOUDY. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.    
MONDAY NIGHT  
SOUTH WINDS TO 30 KT. CHANCE OF SHOWERS AND  
THUNDERSTORMS OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT. A  
SMALL CRAFT ADVISORY WILL BE NEEDED.    
TUESDAY  
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO  
20 KT. SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING  
TO 1 TO 3 FT.  
 
 
 
LMZ742-743-140915-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
CALUMET HARBOR IL TO GARY IN-  
941 PM CDT SUN SEP 13 2026  
   
REST OF TONIGHT  
NORTH WINDS 10 TO 15 KT. CLEAR LATE IN THE  
EVENING, THEN BECOMING PARTLY CLOUDY. WAVES 2 TO 4 FT SUBSIDING  
TO 1 TO 3 FT.    
MONDAY  
SOUTHEAST WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT IN  
THE AFTERNOON. PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY  
CLOUDY. WAVES 1 TO 3 FT.    
MONDAY NIGHT  
SOUTHEAST WINDS TO 30 KT BECOMING SOUTH. SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 3 TO 5 FT. A  
SMALL CRAFT ADVISORY WILL BE NEEDED.    
TUESDAY  
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO  
20 KT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN  
THE MORNING, THEN SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. WAVES 2 TO 4 FT SUBSIDING TO 1 TO  
2 FT.  
 
 
 
LMZ744-745-140915-  
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-  
941 PM CDT SUN SEP 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CDT MONDAY  
 
   
REST OF TONIGHT  
NORTH WINDS 15 TO 20 KT BECOMING NORTHEAST AND  
DIMINISHING TO 10 TO 15 KT. MOSTLY CLEAR LATE IN THE EVENING,  
THEN BECOMING MOSTLY CLOUDY. WAVES 3 TO 6 FT SUBSIDING TO 1 TO 3  
FT LATE.   
MONDAY  
SOUTHEAST WINDS AROUND 10 KT INCREASING TO 15 TO 25 KT.  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY CLOUDY. WAVES 1  
TO 3 FT.    
MONDAY NIGHT  
SOUTHEAST WINDS TO 30 KT BECOMING SOUTH. MOSTLY  
CLOUDY. WAVES 2 TO 4 FT. A SMALL CRAFT ADVISORY WILL BE NEEDED.    
TUESDAY  
SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST 10 TO  
20 KT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN  
THE MORNING, THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.  
 
 
 
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