597  
FZUS53 KMKX 151810  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
110 PM CDT TUE SEP 15 2026  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-152200-  
SHEBOYGAN TO PORT WASHINGTON WI-  
110 PM CDT TUE SEP 15 2026  
   
REST OF TODAY
 
SOUTHWEST WIND 15 TO 20 KNOTS BECOMING 10 TO  
20 KNOTS LATE IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 3 TO 4 FEET.   
TONIGHT
 
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH AFTER  
MIDNIGHT, THEN VEERING NORTHEAST 10 TO 20 KNOTS EARLY IN THE  
MORNING. MOSTLY CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET  
EARLY IN THE MORNING.    
WEDNESDAY
 
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO  
15 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 10 TO  
15 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 TO 4 FEET  
SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 TO  
10 KNOTS LATE IN THE EVENING, THEN VEERING EAST AFTER MIDNIGHT  
BACKING NORTHEAST EARLY IN THE MORNING. CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.  
 

 
LMZ644-152200-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
110 PM CDT TUE SEP 15 2026  
   
REST OF TODAY
 
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO  
20 KNOTS. MOSTLY CLOUDY. WAVES 2 TO 4 FEET.    
TONIGHT
 
NORTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS  
LATE IN THE EVENING, THEN VEERING NORTH AFTER MIDNIGHT BECOMING  
10 TO 20 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES AROUND  
1 FOOT BUILDING TO 2 TO 4 FEET EARLY IN THE MORNING.    
WEDNESDAY
 
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO  
15 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 10 TO  
15 KNOTS LATE IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 3 TO 4 FEET.   
WEDNESDAY NIGHT
 
NORTHEAST WIND 10 TO 15 KNOTS BECOMING EAST  
5 TO 10 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN BACKING  
NORTHEAST EARLY IN THE MORNING. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.  
 

 
LMZ645-152200-  
NORTH POINT LIGHT TO WIND POINT WI-  
110 PM CDT TUE SEP 15 2026  
   
REST OF TODAY
 
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO  
AROUND 20 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS LATE IN THE  
AFTERNOON. MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO  
2 FEET LATE IN THE AFTERNOON.    
TONIGHT
 
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH 10 TO  
15 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING  
10 TO 20 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES 1 TO  
2 FEET BUILDING TO 2 TO 4 FEET EARLY IN THE MORNING.    
WEDNESDAY
 
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO  
15 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 10 TO  
15 KNOTS LATE IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 3 TO 4 FEET.   
WEDNESDAY NIGHT
 
NORTHEAST WIND 10 TO 15 KNOTS VEERING EAST  
LATE IN THE EVENING, THEN EASING TO 5 TO 10 KNOTS AFTER MIDNIGHT  
BACKING NORTHEAST EARLY IN THE MORNING. CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.  
 

 
LMZ646-152200-  
WIND POINT WI TO WINTHROP HARBOR IL-  
110 PM CDT TUE SEP 15 2026  
   
REST OF TODAY
 
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO  
AROUND 20 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS LATE IN THE  
AFTERNOON. MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO  
2 FEET LATE IN THE AFTERNOON.    
TONIGHT
 
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH 10 TO  
15 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING  
10 TO 20 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES 1 TO  
2 FEET BUILDING TO 2 TO 4 FEET EARLY IN THE MORNING.    
WEDNESDAY
 
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO  
15 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 10 TO  
15 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE  
AFTERNOON. WAVES 3 TO 4 FEET.    
WEDNESDAY NIGHT
 
NORTHEAST WIND 10 TO 15 KNOTS VEERING EAST  
LATE IN THE EVENING, THEN EASING TO 5 TO 10 KNOTS AFTER MIDNIGHT  
BACKING NORTHEAST EARLY IN THE MORNING. CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 2 TO 4 FEET  
SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.  
 

 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR THURSDAY THROUGH SATURDAY.  
 
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