421  
FZUS53 KMKX 180205  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
905 PM CDT THU JUL 17 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-181000-  
SHEBOYGAN TO PORT WASHINGTON WI-  
905 PM CDT THU JUL 17 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT FRIDAY  
 
   
REST OF TONIGHT  
NORTHEAST WIND 5 TO 10 KNOTS. CLEAR. WAVES  
2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET AFTER MIDNIGHT.    
FRIDAY  
EAST WIND 5 TO 10 KNOTS VEERING SOUTHEAST LATE IN THE  
AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.    
FRIDAY NIGHT  
SOUTHEAST WIND 5 TO 10 KNOTS VEERING SOUTH AFTER  
MIDNIGHT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS  
AFTER MIDNIGHT. WAVES AROUND 1 FOOT.    
SATURDAY  
SOUTH WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND  
THUNDERSTORMS. WAVES AROUND 1 FOOT.  
 
 
LMZ644-181000-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
905 PM CDT THU JUL 17 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT FRIDAY  
 
   
REST OF TONIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. CLEAR. WAVES  
2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET EARLY IN THE MORNING.    
FRIDAY  
EAST WIND 5 TO 10 KNOTS VEERING SOUTHEAST IN THE  
AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.    
FRIDAY NIGHT  
SOUTHEAST WIND 5 TO 10 KNOTS VEERING SOUTH AFTER  
MIDNIGHT, THEN BACKING SOUTHEAST EARLY IN THE MORNING. CHANCE OF  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES  
AROUND 1 FOOT.    
SATURDAY  
SOUTHEAST WIND 5 TO 10 KNOTS VEERING SOUTHWEST LATE  
IN THE AFTERNOON. SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.  
WAVES AROUND 1 FOOT.  
 
 
LMZ645-181000-  
NORTH POINT LIGHT TO WIND POINT WI-  
905 PM CDT THU JUL 17 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT FRIDAY  
 
   
REST OF TONIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. CLEAR. WAVES  
2 TO 4 FEET.    
FRIDAY  
EAST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS LATE  
IN THE MORNING, THEN BECOMING EAST 5 TO 10 KNOTS IN THE  
AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.    
FRIDAY NIGHT  
SOUTHEAST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS  
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES AROUND  
1 FOOT.    
SATURDAY  
SOUTHEAST WIND 5 TO 10 KNOTS VEERING SOUTH IN THE  
LATE MORNING AND EARLY AFTERNOON, THEN BACKING NORTHEAST LATE IN  
THE AFTERNOON. SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.  
WAVES AROUND 1 FOOT.  
 
 
LMZ646-181000-  
WIND POINT WI TO WINTHROP HARBOR IL-  
905 PM CDT THU JUL 17 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT FRIDAY  
 
   
REST OF TONIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. MOSTLY CLEAR.  
WAVES 2 TO 4 FEET.    
FRIDAY  
EAST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS LATE  
IN THE MORNING, THEN BECOMING EAST 5 TO 10 KNOTS IN THE  
AFTERNOON. SUNNY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN  
THE LATE MORNING AND AFTERNOON.    
FRIDAY NIGHT  
EAST WIND 5 TO 10 KNOTS VEERING SOUTHEAST EARLY  
IN THE MORNING. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. WAVES AROUND 1 FOOT.    
SATURDAY  
SOUTH WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND  
THUNDERSTORMS. WAVES AROUND 1 FOOT.  
 
 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SUNDAY THROUGH TUESDAY.  
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