450  
FZUS53 KMKX 220505  
NSHMKX  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
1105 PM CST TUE JAN 21 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ643-221100-  
SHEBOYGAN TO PORT WASHINGTON WI-  
1105 PM CST TUE JAN 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 3 AM CST WEDNESDAY  
THROUGH WEDNESDAY MORNING...  
   
REST OF TONIGHT
 
SOUTHWEST WIND 15 TO 25 KNOTS RISING TO UP TO  
30 KNOTS WITH GUSTS TO AROUND 35 KNOTS AFTER MIDNIGHT. HEAVY  
FREEZING SPRAY EARLY IN THE MORNING. SLIGHT CHANCE OF SNOW  
SHOWERS EARLY IN THE MORNING. WAVES 3 TO 4 FEET BUILDING TO 5 TO  
7 FEET.    
WEDNESDAY
 
SOUTHWEST WIND UP TO 30 KNOTS EASING TO 15 TO  
25 KNOTS WITH GUSTS TO AROUND 30 KNOTS IN THE LATE MORNING AND  
EARLY AFTERNOON, THEN BECOMING 15 TO 20 KNOTS LATE IN THE  
AFTERNOON. HEAVY FREEZING SPRAY THROUGH THE DAY. SNOW SHOWERS  
LIKELY IN THE MORNING. CHANCE OF SNOW SHOWERS IN THE AFTERNOON.  
WAVES 6 TO 8 FEET SUBSIDING TO 3 TO 5 FEET.    
WEDNESDAY NIGHT
 
SOUTHWEST WIND 15 TO 20 KNOTS VEERING WEST  
LATE IN THE EVENING, THEN VEERING NORTHWEST 10 TO 20 KNOTS AFTER  
MIDNIGHT BECOMING 15 TO 20 KNOTS EARLY IN THE MORNING. CHANCE OF  
SNOW SHOWERS THROUGH AROUND MIDNIGHT. WAVES 3 TO 4 FEET SUBSIDING  
TO 1 TO 2 FEET AFTER MIDNIGHT.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. SUNNY. WAVES 2 TO  
4 FEET SUBSIDING TO 1 TO 2 FEET LATE IN THE AFTERNOON.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 

 
LMZ644-221100-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
1105 PM CST TUE JAN 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 3 AM CST WEDNESDAY  
THROUGH WEDNESDAY MORNING...  
   
REST OF TONIGHT
 
SOUTHWEST WIND 15 TO 20 KNOTS BECOMING 15 TO  
25 KNOTS AFTER MIDNIGHT, THEN RISING TO UP TO 30 KNOTS EARLY IN  
THE MORNING. PARTLY CLOUDY AROUND MIDNIGHT THEN BECOMING MOSTLY  
CLOUDY. WAVES 4 TO 6 FEET.    
WEDNESDAY
 
SOUTHWEST WIND UP TO 30 KNOTS EASING TO 15 TO  
25 KNOTS WITH GUSTS TO AROUND 30 KNOTS IN THE LATE MORNING AND  
EARLY AFTERNOON, THEN BECOMING 15 TO 20 KNOTS LATE IN THE  
AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING. CHANCE OF SNOW  
SHOWERS THROUGH THE DAY. WAVES 4 TO 6 FEET.    
WEDNESDAY NIGHT
 
SOUTHWEST WIND 15 TO 20 KNOTS VEERING WEST  
10 TO 20 KNOTS LATE IN THE EVENING, THEN VEERING NORTHWEST AFTER  
MIDNIGHT BECOMING 15 TO 20 KNOTS EARLY IN THE MORNING. CHANCE OF  
SNOW SHOWERS THROUGH AROUND MIDNIGHT, THEN SLIGHT CHANCE OF SNOW  
SHOWERS AFTER MIDNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO  
2 FEET IN THE LATE EVENING AND OVERNIGHT.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. MOSTLY SUNNY. WAVES  
2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET LATE IN THE AFTERNOON.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 

 
LMZ645-221100-  
NORTH POINT LIGHT TO WIND POINT WI-  
1105 PM CST TUE JAN 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 3 AM CST WEDNESDAY  
THROUGH WEDNESDAY MORNING...  
   
REST OF TONIGHT
 
SOUTHWEST WIND 15 TO 25 KNOTS BECOMING SOUTH  
UP TO 30 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY AROUND  
MIDNIGHT THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 3 FEET BUILDING  
TO 3 TO 5 FEET AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND  
35 KNOTS EASING TO 15 TO 25 KNOTS WITH GUSTS TO AROUND 30 KNOTS  
EARLY IN THE AFTERNOON, THEN BECOMING 15 TO 20 KNOTS WITH GUSTS  
TO AROUND 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF SNOW SHOWERS.  
WAVES 3 TO 5 FEET SUBSIDING TO 3 TO 4 FEET IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
SOUTHWEST WIND 15 TO 20 KNOTS VEERING WEST  
LATE IN THE EVENING, THEN BECOMING 10 TO 20 KNOTS AFTER MIDNIGHT  
VEERING NORTHWEST 15 TO 20 KNOTS EARLY IN THE MORNING. SNOW  
SHOWERS LIKELY THROUGH AROUND MIDNIGHT, THEN SLIGHT CHANCE OF  
SNOW SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. MOSTLY SUNNY. WAVES  
2 TO 4 FEET.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 

 
LMZ646-221100-  
WIND POINT WI TO WINTHROP HARBOR IL-  
1105 PM CST TUE JAN 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 3 AM CST WEDNESDAY  
THROUGH WEDNESDAY MORNING...  
   
REST OF TONIGHT
 
SOUTHWEST WIND 15 TO 20 KNOTS BECOMING 15 TO  
25 KNOTS AFTER MIDNIGHT, THEN BECOMING SOUTH UP TO 30 KNOTS EARLY  
IN THE MORNING. HEAVY FREEZING SPRAY EARLY IN THE MORNING. WAVES  
4 TO 6 FEET.    
WEDNESDAY
 
SOUTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND  
35 KNOTS EASING TO 15 TO 25 KNOTS WITH GUSTS TO AROUND 35 KNOTS  
IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING 15 TO  
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN THE AFTERNOON.  
HEAVY FREEZING SPRAY IN THE MORNING. CHANCE OF SNOW SHOWERS  
THROUGH THE DAY. WAVES 4 TO 6 FEET.    
WEDNESDAY NIGHT
 
SOUTHWEST WIND 15 TO 20 KNOTS VEERING WEST  
10 TO 20 KNOTS AFTER MIDNIGHT, THEN VEERING NORTHWEST 15 TO  
20 KNOTS EARLY IN THE MORNING. SNOW SHOWERS LIKELY THROUGH AROUND  
MIDNIGHT, THEN CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES 2 TO  
4 FEET SUBSIDING TO AROUND 1 FOOT IN THE LATE EVENING AND  
OVERNIGHT.    
THURSDAY
 
NORTHWEST WIND 15 TO 20 KNOTS. MOSTLY SUNNY. WAVES  
2 TO 4 FEET.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 

 
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR FRIDAY THROUGH SUNDAY.  
 
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