945  
FZUS53 KMKX 181910  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
110 PM CST THU DEC 18 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-182300-  
SHEBOYGAN TO PORT WASHINGTON WI-  
110 PM CST THU DEC 18 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING  
 
...GALE WARNING IN EFFECT FROM 6 PM CST THIS EVENING THROUGH  
FRIDAY MORNING...  
   
REST OF TODAY  
SOUTH WIND 15 TO 25 KNOTS VEERING WEST 15 TO  
20 KNOTS LATE IN THE AFTERNOON. AREAS OF FOG THROUGH THE DAY.  
SHOWERS EARLY IN THE AFTERNOON. CHANCE OF SHOWERS LATE IN THE  
AFTERNOON. WAVES 7 TO 9 FEET SUBSIDING TO 6 TO 8 FEET LATE IN THE  
AFTERNOON.    
TONIGHT  
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS LATE  
IN THE EVENING, THEN BECOMING WEST UP TO 30 KNOTS AFTER MIDNIGHT  
VEERING NORTHWEST EARLY IN THE MORNING. GUSTS UP TO 35 KNOTS.  
CHANCE OF SNOW SHOWERS THROUGH AROUND MIDNIGHT, THEN SNOW SHOWERS  
LIKELY AFTER MIDNIGHT. WAVES 4 TO 6 FEET SUBSIDING TO 3 TO 4 FEET  
IN THE LATE EVENING AND EARLY MORNING, THEN BUILDING TO 3 TO  
5 FEET EARLY IN THE MORNING.    
FRIDAY  
NORTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND  
35 KNOTS EASING TO 15 TO 25 KNOTS EARLY IN THE AFTERNOON, THEN  
BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE  
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 3 TO 5 FEET SUBSIDING TO  
1 TO 2 FEET LATE IN THE AFTERNOON.    
FRIDAY NIGHT  
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH  
15 TO 25 KNOTS LATE IN THE EVENING, THEN RISING TO UP TO 30 KNOTS  
AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES AROUND 1 FOOT BUILDING TO  
5 TO 7 FEET.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 
 
LMZ644-182300-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
110 PM CST THU DEC 18 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING  
 
...GALE WARNING IN EFFECT FROM 6 PM CST THIS EVENING THROUGH  
FRIDAY MORNING...  
   
REST OF TODAY  
SOUTHWEST WIND 15 TO 25 KNOTS VEERING WEST 15 TO  
20 KNOTS LATE IN THE AFTERNOON. AREAS OF FOG THROUGH THE DAY.  
SHOWERS EARLY IN THE AFTERNOON. CHANCE OF SHOWERS LATE IN THE  
AFTERNOON. WAVES 5 TO 7 FEET SUBSIDING TO 4 TO 6 FEET LATE IN THE  
AFTERNOON.    
TONIGHT  
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS LATE  
IN THE EVENING, THEN BECOMING WEST UP TO 30 KNOTS AFTER MIDNIGHT.  
GUSTS UP TO 35 KNOTS. CHANCE OF SNOW SHOWERS THROUGH THE NIGHT.  
WAVES 3 TO 4 FEET BUILDING TO 3 TO 5 FEET EARLY IN THE MORNING.    
FRIDAY  
NORTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND  
35 KNOTS BECOMING WEST 15 TO 25 KNOTS EARLY IN THE AFTERNOON,  
THEN EASING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY  
IN THE MORNING THEN CLEARING. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO  
2 FEET.    
FRIDAY NIGHT  
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH  
15 TO 20 KNOTS LATE IN THE EVENING, THEN BECOMING 15 TO 25 KNOTS  
AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES AROUND 1 FOOT BUILDING TO  
4 TO 6 FEET.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 
 
LMZ645-182300-  
NORTH POINT LIGHT TO WIND POINT WI-  
110 PM CST THU DEC 18 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING  
 
...GALE WARNING IN EFFECT FROM 6 PM CST THIS EVENING THROUGH  
FRIDAY MORNING...  
   
REST OF TODAY  
SOUTHWEST WIND 15 TO 25 KNOTS VEERING WEST 15 TO  
20 KNOTS LATE IN THE AFTERNOON. GUSTS UP TO 30 KNOTS. AREAS OF  
FOG THROUGH THE DAY. SHOWERS EARLY IN THE AFTERNOON. CHANCE OF  
SHOWERS LATE IN THE AFTERNOON. WAVES 5 TO 7 FEET SUBSIDING TO  
4 TO 6 FEET LATE IN THE AFTERNOON.    
TONIGHT  
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS IN  
THE LATE EVENING AND EARLY MORNING, THEN BECOMING WEST UP TO  
30 KNOTS EARLY IN THE MORNING. GUSTS UP TO 35 KNOTS. CHANCE OF  
SNOW SHOWERS THROUGH THE NIGHT. WAVES 3 TO 4 FEET BUILDING TO  
3 TO 5 FEET EARLY IN THE MORNING.    
FRIDAY  
NORTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND  
35 KNOTS BECOMING WEST 15 TO 25 KNOTS EARLY IN THE AFTERNOON,  
THEN EASING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY  
IN THE MORNING THEN CLEARING. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO  
2 FEET.    
FRIDAY NIGHT  
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH  
15 TO 25 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY.  
WAVES 1 TO 2 FEET BUILDING TO 4 TO 6 FEET IN THE LATE EVENING AND  
OVERNIGHT.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 
 
LMZ646-182300-  
WIND POINT WI TO WINTHROP HARBOR IL-  
110 PM CST THU DEC 18 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING  
 
...GALE WARNING IN EFFECT FROM 6 PM CST THIS EVENING THROUGH  
FRIDAY MORNING...  
   
REST OF TODAY  
SOUTHWEST WIND 15 TO 25 KNOTS BECOMING WEST  
10 TO 20 KNOTS LATE IN THE AFTERNOON. GUSTS UP TO 30 KNOTS. AREAS  
OF FOG THROUGH THE DAY. SHOWERS EARLY IN THE AFTERNOON. CHANCE OF  
SHOWERS LATE IN THE AFTERNOON. WAVES 5 TO 7 FEET SUBSIDING TO  
3 TO 5 FEET LATE IN THE AFTERNOON.    
TONIGHT  
WEST WIND 15 TO 25 KNOTS RISING TO UP TO 30 KNOTS  
AFTER MIDNIGHT, THEN BECOMING WEST UP TO 30 KNOTS EARLY IN THE  
MORNING. GUSTS UP TO 35 KNOTS. CHANCE OF SNOW SHOWERS THROUGH THE  
NIGHT. WAVES 3 TO 4 FEET.    
FRIDAY  
NORTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND  
35 KNOTS BECOMING NORTHWEST UP TO 30 KNOTS LATE IN THE MORNING,  
THEN BECOMING WEST 15 TO 25 KNOTS EARLY IN THE AFTERNOON EASING  
TO 10 TO 15 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY IN THE  
MORNING THEN CLEARING. WAVES 3 TO 4 FEET SUBSIDING TO 1 TO 2 FEET  
LATE IN THE AFTERNOON.    
FRIDAY NIGHT  
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH  
15 TO 25 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY.  
WAVES 1 TO 2 FEET BUILDING TO 4 TO 6 FEET.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 
 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SATURDAY THROUGH MONDAY.  
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