566  
FZUS53 KMKX 230611  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
111 AM CDT THU OCT 23 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-230900-  
SHEBOYGAN TO PORT WASHINGTON WI-  
111 AM CDT THU OCT 23 2025  
   
REST OF TONIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO  
AROUND 25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. MOSTLY CLOUDY. WAVES  
1 TO 2 FEET.    
THURSDAY NIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS EASING TO 10 TO  
15 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.    
FRIDAY
 
NORTHWEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS  
IN THE AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.  
 

 
LMZ644-230900-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
111 AM CDT THU OCT 23 2025  
   
REST OF TONIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS. MOSTLY CLOUDY.  
WAVES 1 TO 2 FEET.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. PARTLY SUNNY. WAVES  
1 TO 2 FEET.    
THURSDAY NIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS EASING TO 10 TO  
15 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.    
FRIDAY
 
NORTHWEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS  
LATE IN THE MORNING, THEN BECOMING NORTHWEST 5 TO 10 KNOTS IN THE  
AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.  
 

 
LMZ645-230900-  
NORTH POINT LIGHT TO WIND POINT WI-  
111 AM CDT THU OCT 23 2025  
   
REST OF TONIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS. MOSTLY CLOUDY.  
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET EARLY IN THE MORNING.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. PARTLY SUNNY. WAVES  
1 TO 2 FEET BUILDING TO 2 TO 4 FEET LATE IN THE MORNING, THEN  
SUBSIDING TO 1 TO 2 FEET IN THE AFTERNOON.    
THURSDAY NIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS BECOMING 10 TO  
20 KNOTS AFTER MIDNIGHT, THEN BECOMING 10 TO 15 KNOTS EARLY IN  
THE MORNING. PARTLY CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 2 TO  
4 FEET LATE IN THE EVENING, THEN SUBSIDING TO 1 TO 2 FEET AFTER  
MIDNIGHT.    
FRIDAY
 
NORTHWEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS  
EARLY IN THE AFTERNOON, THEN BECOMING NORTHWEST 5 TO 10 KNOTS  
LATE IN THE AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.  
 

 
LMZ646-230900-  
WIND POINT WI TO WINTHROP HARBOR IL-  
111 AM CDT THU OCT 23 2025  
   
REST OF TONIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS. MOSTLY CLOUDY.  
WAVES 1 TO 2 FEET.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. PARTLY SUNNY. WAVES  
1 TO 2 FEET.    
THURSDAY NIGHT
 
NORTHWEST WIND 15 TO 20 KNOTS EASING TO 10 TO  
15 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.    
FRIDAY
 
NORTHWEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS  
EARLY IN THE AFTERNOON, THEN VEERING NORTH LATE IN THE AFTERNOON.  
SUNNY. WAVES AROUND 1 FOOT.  
 

 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SATURDAY THROUGH MONDAY.  
 
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