447  
FZUS53 KLOT 110255  
NSHLOT  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
955 PM CDT SUN AUG 10 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>742-110915-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
955 PM CDT SUN AUG 10 2025  
   
REST OF TONIGHT  
SOUTH WINDS 15 TO 20 KT DIMINISHING TO 10 TO  
15 KT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3  
FT.    
MONDAY  
SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS  
AND THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT.    
MONDAY NIGHT  
SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST.  
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES AROUND 1 FT.    
TUESDAY  
SOUTHWEST WINDS AROUND 10 KT. CHANCE OF SHOWERS AND  
THUNDERSTORMS. WAVES AROUND 1 FT.  
 
 
 
LMZ743>745-110915-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
955 PM CDT SUN AUG 10 2025  
   
REST OF TONIGHT  
SOUTH WINDS 10 TO 15 KT. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.    
MONDAY  
SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS  
AND THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT.   
MONDAY NIGHT  
SOUTH WINDS 5 TO 10 KT. CHANCE OF SHOWERS AND  
THUNDERSTORMS. WAVES AROUND 1 FT.    
TUESDAY  
SOUTHWEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN SHOWERS AND THUNDERSTORMS  
LIKELY IN THE AFTERNOON. WAVES AROUND 1 FT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page