837  
FZUS53 KMKX 120410  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
1110 PM CDT FRI SEP 11 2026  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-121000-  
SHEBOYGAN TO PORT WASHINGTON WI-  
1110 PM CDT FRI SEP 11 2026  
   
REST OF TONIGHT  
SOUTH WIND 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 2 TO 4 FEET.    
SATURDAY  
SOUTH WIND 15 TO 20 KNOTS VEERING SOUTHWEST LATE IN  
THE MORNING, THEN BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO  
AROUND 20 KNOTS EARLY IN THE AFTERNOON BECOMING WEST 10 TO  
15 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 TO 4 FEET  
SUBSIDING TO 1 TO 2 FEET LATE IN THE AFTERNOON.    
SATURDAY NIGHT  
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO  
AROUND 20 KNOTS BECOMING NORTHWEST 10 TO 15 KNOTS EARLY IN THE  
MORNING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.    
SUNDAY  
NORTHWEST WIND 10 TO 15 KNOTS BECOMING 10 TO 20 KNOTS  
EARLY IN THE AFTERNOON, THEN BECOMING 15 TO 20 KNOTS LATE IN THE  
AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH THE DAY. WAVES 1 TO  
2 FEET.  
 
 
LMZ644-121000-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
1110 PM CDT FRI SEP 11 2026  
   
REST OF TONIGHT  
SOUTH WIND 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 1 TO 3 FEET.    
SATURDAY  
SOUTH WIND 10 TO 15 KNOTS VEERING WEST LATE IN THE  
AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.    
SATURDAY NIGHT  
NORTHWEST WIND 10 TO 15 KNOTS. MOSTLY CLEAR.  
WAVES AROUND 1 FOOT.    
SUNDAY  
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH LATE IN THE  
MORNING, THEN BACKING NORTHWEST EARLY IN THE AFTERNOON BECOMING  
NORTHWEST 10 TO 15 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF  
SHOWERS THROUGH THE DAY. WAVES 1 TO 2 FEET.  
 
 
LMZ645-121000-  
NORTH POINT LIGHT TO WIND POINT WI-  
1110 PM CDT FRI SEP 11 2026  
   
REST OF TONIGHT  
SOUTH WIND 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 1 TO 2 FEET.    
SATURDAY  
SOUTH WIND 10 TO 15 KNOTS VEERING WEST LATE IN THE  
AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.    
SATURDAY NIGHT  
NORTHWEST WIND 10 TO 15 KNOTS. MOSTLY CLEAR.  
WAVES 1 TO 2 FEET.    
SUNDAY  
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH LATE IN THE  
MORNING, THEN BACKING NORTHWEST EARLY IN THE AFTERNOON BECOMING  
NORTHWEST 10 TO 15 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF  
SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.  
 
 
LMZ646-121000-  
WIND POINT WI TO WINTHROP HARBOR IL-  
1110 PM CDT FRI SEP 11 2026  
   
REST OF TONIGHT  
SOUTH WIND 10 TO 15 KNOTS. PARTLY CLOUDY.  
WAVES 1 TO 2 FEET.    
SATURDAY  
SOUTH WIND 10 TO 15 KNOTS VEERING WEST LATE IN THE  
AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.    
SATURDAY NIGHT  
NORTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO  
15 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING  
NORTHWEST 10 TO 15 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR.  
WAVES AROUND 1 FOOT.    
SUNDAY  
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH LATE IN THE  
MORNING, THEN BECOMING NORTH 10 TO 15 KNOTS EARLY IN THE  
AFTERNOON BACKING NORTHWEST LATE IN THE AFTERNOON. SLIGHT CHANCE  
OF SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.  
 
 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR MONDAY THROUGH WEDNESDAY.  
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