568  
FZUS53 KMKX 200810  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
310 AM CDT MON OCT 20 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-202100-  
SHEBOYGAN TO PORT WASHINGTON WI-  
310 AM CDT MON OCT 20 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON CDT TODAY THROUGH  
WEDNESDAY EVENING...  
   
EARLY THIS MORNING
 
WEST WIND 10 TO 15 KNOTS. MOSTLY CLEAR.  
WAVES AROUND 1 FOOT.    
TODAY
 
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING 10 TO 20 KNOTS  
LATE IN THE MORNING, THEN BECOMING SOUTH 15 TO 25 KNOTS EARLY IN  
THE AFTERNOON RISING TO UP TO 30 KNOTS LATE IN THE AFTERNOON.  
SUNNY. WAVES AROUND 1 FOOT BUILDING TO 6 TO 8 FEET.    
TONIGHT
 
SOUTH WIND UP TO 30 KNOTS VEERING SOUTHWEST LATE IN  
THE EVENING, THEN BECOMING WEST 15 TO 25 KNOTS AFTER MIDNIGHT.  
RAIN SHOWERS THROUGH AROUND MIDNIGHT. CHANCE OF SHOWERS AFTER  
MIDNIGHT. WAVES 7 TO 9 FEET SUBSIDING TO 3 TO 5 FEET.    
TUESDAY
 
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS IN  
THE AFTERNOON. RAIN SHOWERS IN THE AFTERNOON. WAVES 3 TO 4 FEET  
BUILDING TO 3 TO 5 FEET LATE IN THE AFTERNOON.    
TUESDAY NIGHT
 
WEST WIND UP TO 30 KNOTS. RAIN SHOWERS THROUGH  
AROUND MIDNIGHT, THEN CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES  
3 TO 5 FEET SUBSIDING TO 3 TO 4 FEET AFTER MIDNIGHT.  
 

 
LMZ644-202100-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
310 AM CDT MON OCT 20 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON CDT TODAY THROUGH  
WEDNESDAY EVENING...  
   
EARLY THIS MORNING
 
WEST WIND 10 TO 15 KNOTS. CLEAR. WAVES  
AROUND 1 FOOT.    
TODAY
 
SOUTHWEST WIND 10 TO 15 KNOTS BACKING SOUTH 10 TO  
20 KNOTS LATE IN THE MORNING, THEN RISING TO 15 TO 25 KNOTS EARLY  
IN THE AFTERNOON RISING TO UP TO 30 KNOTS LATE IN THE AFTERNOON.  
SUNNY. WAVES AROUND 1 FOOT BUILDING TO 6 TO 8 FEET.    
TONIGHT
 
SOUTH WIND UP TO 30 KNOTS VEERING SOUTHWEST LATE IN  
THE EVENING, THEN BECOMING WEST 15 TO 25 KNOTS AFTER MIDNIGHT.  
RAIN SHOWERS THROUGH AROUND MIDNIGHT. RAIN SHOWERS LIKELY AFTER  
MIDNIGHT. WAVES 6 TO 8 FEET SUBSIDING TO 5 TO 7 FEET LATE IN THE  
EVENING, THEN SUBSIDING TO 4 TO 6 FEET AFTER MIDNIGHT.    
TUESDAY
 
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS WITH  
GUSTS TO AROUND 35 KNOTS IN THE LATE MORNING AND AFTERNOON.  
SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS IN THE  
AFTERNOON. WAVES 3 TO 4 FEET BUILDING TO 3 TO 5 FEET LATE IN THE  
AFTERNOON.    
TUESDAY NIGHT
 
WEST GALES TO 35 KNOTS EASING TO UP TO 30 KNOTS  
AFTER MIDNIGHT, THEN BECOMING WEST UP TO 30 KNOTS EARLY IN THE  
MORNING. RAIN SHOWERS THROUGH AROUND MIDNIGHT, THEN SHOWERS  
LIKELY AFTER MIDNIGHT. WAVES 3 TO 5 FEET SUBSIDING TO 3 TO 4 FEET  
EARLY IN THE MORNING.  
 

 
LMZ645-202100-  
NORTH POINT LIGHT TO WIND POINT WI-  
310 AM CDT MON OCT 20 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON CDT TODAY THROUGH  
WEDNESDAY EVENING...  
   
EARLY THIS MORNING
 
WEST WIND 10 TO 15 KNOTS. CLEAR. WAVES 1 TO  
2 FEET.    
TODAY
 
SOUTHWEST WIND 10 TO 15 KNOTS BACKING SOUTH 10 TO  
20 KNOTS LATE IN THE MORNING, THEN RISING TO 15 TO 25 KNOTS EARLY  
IN THE AFTERNOON RISING TO UP TO 30 KNOTS LATE IN THE AFTERNOON.  
SUNNY. WAVES 1 TO 2 FEET BUILDING TO 4 TO 6 FEET.    
TONIGHT
 
SOUTH WIND UP TO 30 KNOTS VEERING SOUTHWEST LATE IN  
THE EVENING, THEN BECOMING WEST 15 TO 25 KNOTS AFTER MIDNIGHT.  
RAIN SHOWERS THROUGH AROUND MIDNIGHT. RAIN SHOWERS LIKELY AFTER  
MIDNIGHT. WAVES 5 TO 7 FEET SUBSIDING TO 3 TO 4 FEET.    
TUESDAY
 
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS WITH  
GUSTS TO AROUND 35 KNOTS IN THE LATE MORNING AND AFTERNOON.  
SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS IN THE  
AFTERNOON. WAVES 3 TO 4 FEET BUILDING TO 3 TO 5 FEET LATE IN THE  
AFTERNOON.    
TUESDAY NIGHT
 
WEST WIND UP TO 30 KNOTS RISING TO GALES TO  
35 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN EASING TO UP  
TO 30 KNOTS EARLY IN THE MORNING. RAIN SHOWERS LIKELY. WAVES 3 TO  
5 FEET.  
 

 
LMZ646-202100-  
WIND POINT WI TO WINTHROP HARBOR IL-  
310 AM CDT MON OCT 20 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON CDT TODAY THROUGH  
WEDNESDAY EVENING...  
   
EARLY THIS MORNING
 
WEST WIND 10 TO 15 KNOTS. CLEAR. WAVES 1 TO  
2 FEET.    
TODAY
 
SOUTHWEST WIND 10 TO 15 KNOTS BACKING SOUTH 10 TO  
20 KNOTS LATE IN THE MORNING, THEN RISING TO 15 TO 25 KNOTS EARLY  
IN THE AFTERNOON BECOMING SOUTH 15 TO 25 KNOTS WITH GUSTS TO  
AROUND 30 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET  
BUILDING TO 4 TO 6 FEET.    
TONIGHT
 
SOUTH WIND 15 TO 25 KNOTS BECOMING SOUTHWEST UP TO  
30 KNOTS LATE IN THE EVENING, THEN BECOMING WEST 15 TO 25 KNOTS  
AFTER MIDNIGHT. RAIN SHOWERS THROUGH AROUND MIDNIGHT. RAIN  
SHOWERS LIKELY AFTER MIDNIGHT. WAVES 5 TO 7 FEET SUBSIDING TO  
3 TO 5 FEET AFTER MIDNIGHT.    
TUESDAY
 
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS WITH  
GUSTS TO AROUND 35 KNOTS. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN SHOWERS LIKELY IN THE AFTERNOON. WAVES 3 TO 4 FEET.   
TUESDAY NIGHT
 
WEST WIND UP TO 30 KNOTS. GUSTS UP TO 35 KNOTS.  
RAIN SHOWERS LIKELY. WAVES 3 TO 5 FEET.  
 

 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR WEDNESDAY THROUGH FRIDAY.  
 
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