568  
FZUS53 KGRB 271106  
NSHGRB  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE GREEN BAY WI  
606 AM CDT MON APR 27 2026  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ521-522-271600-  
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-  
606 AM CDT MON APR 27 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING  
THROUGH TUESDAY AFTERNOON...  
   
TODAY  
SE WIND 15 TO 25 KTS. WAVES 2 TO 4 FT. PATCHY FOG. A  
SLIGHT CHANCE OF SHOWERS IN THE MORNING. RAIN SHOWERS AND A  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT  
S WIND 15 TO 25 KTS VEERING SW AFTER MIDNIGHT. WAVES  
2 TO 4 FT. PATCHY FOG IN THE EVENING. SHOWERS IN THE EVENING. A  
CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
TUESDAY  
W WIND 15 TO 25 KTS DECREASING TO 10 TO 15 KTS IN THE  
LATE MORNING AND AFTERNOON. WAVES 1 TO 3 FT. PARTLY SUNNY.    
TUESDAY NIGHT  
N WIND 5 TO 10 KTS. WAVES 2 FT OR LESS. MOSTLY  
CLOUDY.  
 
 
 
LMZ541-271600-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
606 AM CDT MON APR 27 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING  
THROUGH TUESDAY AFTERNOON...  
   
TODAY  
SE WIND 15 TO 25 KTS. WAVES 4 TO 7 FT. PATCHY FOG.  
SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT  
S WIND TO 30 KTS VEERING SW 15 TO 25 KTS AFTER  
MIDNIGHT. WAVES 6 TO 10 FT. PATCHY FOG IN THE EVENING. SHOWERS  
AND A CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF  
SHOWERS AFTER MIDNIGHT.    
TUESDAY  
W WIND 15 TO 25 KTS DECREASING TO 10 TO 15 KTS IN THE  
LATE MORNING AND AFTERNOON. WAVES 4 TO 7 FT. PARTLY SUNNY.    
TUESDAY NIGHT  
N WIND 5 TO 10 KTS. WAVES 2 FT OR LESS. MOSTLY  
CLOUDY.  
 
 
 
LMZ542-543-271600-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
606 AM CDT MON APR 27 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON  
 
   
TODAY  
SE WIND TO 30 KTS WITH GALE FORCE GUSTS TO AROUND  
35 KTS. WAVES 4 TO 7 FT BUILDING TO 6 TO 10 FT IN THE AFTERNOON.  
PATCHY FOG. A CHANCE OF SHOWERS IN THE MORNING. RAIN SHOWERS AND  
A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT  
S WIND TO 30 KTS VEERING SW 15 TO 25 KTS AFTER  
MIDNIGHT. WAVES 8 TO 12 FT SUBSIDING TO 6 TO 10 FT AFTER  
MIDNIGHT. PATCHY FOG IN THE EVENING. SHOWERS AND A CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT.    
TUESDAY  
W WIND 15 TO 25 KTS DECREASING TO 10 TO 15 KTS EARLY  
IN THE AFTERNOON. WAVES 4 TO 7 FT SUBSIDING TO 1 TO 3 FT IN THE  
AFTERNOON. PARTLY SUNNY.    
TUESDAY NIGHT  
NW WIND 5 TO 10 KTS VEERING N IN THE LATE  
EVENING AND OVERNIGHT. WAVES 2 FT OR LESS. MOSTLY CLOUDY.  
 
 
 
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR WEDNESDAY THROUGH FRIDAY.  
 
WAVE HEIGHT FORECAST IS FOR ICE FREE AREAS.  
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