378  
FZUS53 KMKX 290210  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
910 PM CDT TUE APR 28 2026  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-291000-  
SHEBOYGAN TO PORT WASHINGTON WI-  
910 PM CDT TUE APR 28 2026  
   
REST OF TONIGHT  
NORTHWEST WIND 5 TO 10 KNOTS BECOMING  
NORTHEAST 10 TO 15 KNOTS AFTER MIDNIGHT, THEN BECOMING NORTH 5 TO  
10 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES AROUND  
1 FOOT.    
WEDNESDAY  
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE  
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE  
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
WAVES AROUND 1 FOOT.    
WEDNESDAY NIGHT  
SOUTHEAST WIND 5 TO 10 KNOTS VEERING NORTHWEST  
LATE IN THE EVENING, THEN BECOMING NORTHWEST 5 TO 10 KNOTS AFTER  
MIDNIGHT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS  
THROUGH AROUND MIDNIGHT. WAVES AROUND 1 FOOT.    
THURSDAY  
NORTH WIND 5 TO 10 KNOTS VEERING NORTHEAST LATE IN  
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN  
CHANCE OF SHOWERS IN THE AFTERNOON. WAVES AROUND 1 FOOT.  
 
 
LMZ644-291000-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
910 PM CDT TUE APR 28 2026  
   
REST OF TONIGHT  
NORTHWEST WIND 5 TO 10 KNOTS VEERING NORTH  
EARLY IN THE MORNING. CLOUDY. WAVES AROUND 1 FOOT.    
WEDNESDAY  
NORTH WIND 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO  
10 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH  
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES  
1 TO 2 FEET.    
WEDNESDAY NIGHT  
SOUTHEAST WIND 5 TO 10 KNOTS VEERING WEST LATE  
IN THE EVENING, THEN VEERING NORTHWEST AFTER MIDNIGHT. CHANCE OF  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH AROUND  
MIDNIGHT. WAVES AROUND 1 FOOT.    
THURSDAY  
NORTHWEST WIND 5 TO 10 KNOTS VEERING NORTHEAST LATE  
IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN  
CHANCE OF SHOWERS IN THE AFTERNOON. WAVES AROUND 1 FOOT.  
 
 
LMZ645-291000-  
NORTH POINT LIGHT TO WIND POINT WI-  
910 PM CDT TUE APR 28 2026  
   
REST OF TONIGHT  
NORTHWEST WIND 5 TO 10 KNOTS VEERING NORTH  
AFTER MIDNIGHT, THEN RISING TO 10 TO 15 KNOTS EARLY IN THE  
MORNING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES AROUND  
1 FOOT.    
WEDNESDAY  
NORTH WIND 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO  
10 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH  
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES  
1 TO 2 FEET.    
WEDNESDAY NIGHT  
EAST WIND 5 TO 10 KNOTS VEERING WEST LATE IN  
THE EVENING, THEN VEERING NORTHWEST AFTER MIDNIGHT BECOMING  
NORTHWEST 5 TO 10 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES AROUND  
1 FOOT.    
THURSDAY  
NORTHWEST WIND 5 TO 10 KNOTS VEERING NORTHEAST LATE  
IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH THE DAY. WAVES  
AROUND 1 FOOT.  
 
 
LMZ646-291000-  
WIND POINT WI TO WINTHROP HARBOR IL-  
910 PM CDT TUE APR 28 2026  
   
REST OF TONIGHT  
NORTHWEST WIND 5 TO 10 KNOTS VEERING NORTH  
AFTER MIDNIGHT, THEN RISING TO 10 TO 15 KNOTS EARLY IN THE  
MORNING. SLIGHT CHANCE OF SHOWERS. WAVES AROUND 1 FOOT.    
WEDNESDAY  
NORTH WIND 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO  
10 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH  
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES  
1 TO 2 FEET.    
WEDNESDAY NIGHT  
EAST WIND 5 TO 10 KNOTS BECOMING WEST LATE IN  
THE EVENING, THEN BECOMING NORTHWEST AFTER MIDNIGHT BECOMING  
NORTHWEST 5 TO 10 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES AROUND  
1 FOOT.    
THURSDAY  
NORTHWEST WIND 5 TO 10 KNOTS VEERING NORTHEAST LATE  
IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.  
WAVES AROUND 1 FOOT.  
 
 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR FRIDAY THROUGH SUNDAY.  
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