380  
FZUS53 KMKX 312210  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
510 PM CDT SUN MAY 31 2026  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-010400-  
SHEBOYGAN TO PORT WASHINGTON WI-  
510 PM CDT SUN MAY 31 2026  
   
TONIGHT  
NORTHEAST WIND 5 KNOTS BACKING NORTH LATE IN THE  
EVENING, THEN BECOMING NORTH 5 KNOTS AFTER MIDNIGHT. PARTLY  
CLOUDY. WAVES AROUND 1 FOOT.    
MONDAY  
NORTH WIND 5 TO 10 KNOTS VEERING NORTHEAST LATE IN THE  
MORNING, THEN BECOMING NORTHEAST 5 TO 10 KNOTS EARLY IN THE  
AFTERNOON RISING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON. PARTLY  
SUNNY. WAVES AROUND 1 FOOT.    
MONDAY NIGHT  
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND  
20 KNOTS VEERING NORTHEAST LATE IN THE EVENING, THEN EASING TO  
5 TO 10 KNOTS AFTER MIDNIGHT BECOMING NORTHEAST 5 TO 10 KNOTS  
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO 2 FEET BUILDING TO  
2 TO 4 FEET IN THE LATE EVENING AND OVERNIGHT.    
TUESDAY  
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO  
2 FEET.  
 
 
LMZ644-010400-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
510 PM CDT SUN MAY 31 2026  
   
TONIGHT  
NORTHEAST WIND 5 KNOTS BECOMING NORTH LATE IN THE  
EVENING, THEN EASING TO 5 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY  
THROUGH AROUND MIDNIGHT THEN BECOMING MOSTLY CLOUDY. WAVES AROUND  
1 FOOT.    
MONDAY  
NORTH WIND 5 TO 10 KNOTS VEERING NORTHEAST IN THE  
AFTERNOON. PARTLY SUNNY. WAVES AROUND 1 FOOT.    
MONDAY NIGHT  
NORTH WIND 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO  
10 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FEET BUILDING  
TO 2 TO 4 FEET AFTER MIDNIGHT.    
TUESDAY  
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 2 TO 4 FEET  
SUBSIDING TO 1 TO 2 FEET IN THE LATE MORNING AND AFTERNOON.  
 
 
LMZ645-010400-  
NORTH POINT LIGHT TO WIND POINT WI-  
510 PM CDT SUN MAY 31 2026  
   
TONIGHT  
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH AFTER  
MIDNIGHT, THEN RISING TO 5 TO 10 KNOTS EARLY IN THE MORNING.  
PARTLY CLOUDY THROUGH AROUND MIDNIGHT THEN BECOMING MOSTLY  
CLOUDY. WAVES AROUND 1 FOOT.    
MONDAY  
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES AROUND  
1 FOOT.    
MONDAY NIGHT  
NORTH WIND 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO  
10 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY THROUGH AROUND MIDNIGHT  
THEN BECOMING CLEAR. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET  
AFTER MIDNIGHT.    
TUESDAY  
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS  
EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 5 TO 10 KNOTS  
LATE IN THE AFTERNOON. SUNNY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO  
2 FEET IN THE LATE MORNING AND AFTERNOON.  
 
 
LMZ646-010400-  
WIND POINT WI TO WINTHROP HARBOR IL-  
510 PM CDT SUN MAY 31 2026  
   
TONIGHT  
NORTHEAST WIND 5 TO 10 KNOTS BACKING NORTH EARLY IN  
THE MORNING. PARTLY CLOUDY THROUGH AROUND MIDNIGHT THEN BECOMING  
MOSTLY CLOUDY. WAVES AROUND 1 FOOT.    
MONDAY  
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES AROUND  
1 FOOT.    
MONDAY NIGHT  
NORTH WIND 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO  
10 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY THROUGH AROUND MIDNIGHT  
THEN CLEARING. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET AFTER  
MIDNIGHT.    
TUESDAY  
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS  
EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 5 TO 10 KNOTS  
LATE IN THE AFTERNOON. SUNNY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO  
2 FEET IN THE LATE MORNING AND AFTERNOON.  
 
 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR WEDNESDAY THROUGH FRIDAY.  
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