309  
FZUS53 KGRB 270859  
NSHGRB  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE GREEN BAY WI  
359 AM CDT MON OCT 27 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF THE SHORE ON LAKE MICHIGAN  
 
LMZ521-522-271300-  
GREEN BAY SOUTH OF LINE FROM CEDAR RIVER TO ROCK ISLAND PASSAGE  
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-  
GREEN BAY SOUTH OF LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-  
359 AM CDT MON OCT 27 2025  
   
EARLY IN THE MORNING  
SE WIND 5 TO 10 KTS. PATCHY FOG. WAVES  
2 FT OR LESS.    
TODAY  
SE WIND 10 TO 20 KTS. SUNNY. WAVES 1 TO 3 FT.    
TONIGHT  
SE WIND 10 TO 20 KTS WITH GUSTS TO AROUND 25 KTS.  
MOSTLY CLEAR. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT AFTER  
MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.    
TUESDAY  
E WIND 10 TO 20 KTS WITH GUSTS TO AROUND 25 KTS.  
PARTLY CLOUDY IN THE MORNING THEN CLEARING. WAVES 1 TO 3 FT.    
TUESDAY NIGHT  
E WIND 10 TO 20 KTS WITH GUSTS TO AROUND 30 KTS.  
MOSTLY CLEAR. WAVES 2 TO 4 FT.  
 
 
 
LMZ541-271300-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
359 AM CDT MON OCT 27 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  
WEDNESDAY MORNING...  
   
EARLY IN THE MORNING  
SE WIND 5 TO 10 KTS. CLEAR. WAVES 1 TO  
3 FT.    
TODAY  
SE WIND 5 TO 10 KTS INCREASING TO 10 TO 20 KTS IN THE  
AFTERNOON. SUNNY. WAVES 1 TO 3 FT.    
TONIGHT  
SE WIND 10 TO 20 KTS WITH GUSTS TO AROUND 25 KTS.  
MOSTLY CLEAR. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT IN THE LATE  
EVENING AND OVERNIGHT.    
TUESDAY  
SE WIND 15 TO 25 KTS. MOSTLY SUNNY. WAVES 3 TO 5 FT  
SUBSIDING TO 2 TO 4 FT LATE IN THE AFTERNOON.    
TUESDAY NIGHT  
E WIND 15 TO 25 KTS. MOSTLY CLEAR. WAVES 3 TO  
5 FT.  
 
 
 
LMZ542-543-271300-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
359 AM CDT MON OCT 27 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  
WEDNESDAY MORNING...  
   
EARLY IN THE MORNING  
SE WIND 10 TO 15 KTS. CLEAR. WAVES 2 TO  
4 FT.    
TODAY  
SE WIND 10 TO 20 KTS. SUNNY. WAVES 2 TO 4 FT SUBSIDING  
TO 1 TO 3 FT LATE IN THE AFTERNOON.    
TONIGHT  
SE WIND 10 TO 20 KTS WITH GUSTS TO AROUND 30 KTS.  
MOSTLY CLEAR. WAVES 3 TO 5 FT BUILDING TO 4 TO 7 FT.    
TUESDAY  
E WIND 10 TO 20 KTS WITH GUSTS TO AROUND 30 KTS.  
PARTLY CLOUDY IN THE MORNING THEN CLEARING. WAVES 4 TO 7 FT.    
TUESDAY NIGHT  
E WIND 15 TO 25 KTS WITH GUSTS TO AROUND 30 KTS.  
MOSTLY CLEAR. WAVES 4 TO 7 FT BUILDING TO 5 TO 8 FT IN THE LATE  
EVENING AND OVERNIGHT.  
 
 
 
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR WEDNESDAY THROUGH FRIDAY.  
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