563  
FZUS53 KGRB 181525  
NSHGRB  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE GREEN BAY WI  
1025 AM CDT SAT APR 18 2026  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ521-522-182215-  
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-  
1025 AM CDT SAT APR 18 2026  
   
THIS AFTERNOON
 
W WIND 10 TO 20 KTS WITH A FEW GUSTS NEAR 25 KTS.  
WAVES 1 TO 3 FT. A CHANCE OF SPRINKLES.    
TONIGHT
 
W WIND 10 TO 20 KTS WITH A FEW GUSTS TO AROUND 25 KTS.  
A CHANCE OF SPRINKLES IN THE EVENING. WAVES 1 TO 3 FT. A SMALL  
CRAFT ADVISORY MAY BE NEEDED.    
SUNDAY
 
NW WIND 10 TO 20 KTS. A CHANCE OF FLURRIES IN THE  
MORNING. A CHANCE OF SPRINKLES. WAVES 2 FT OR LESS.    
SUNDAY NIGHT
 
N WIND 5 TO 10 KTS BACKING NW AFTER MIDNIGHT.  
CLEAR. WAVES 2 FT OR LESS.  
 

 
 
LMZ541-182215-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
1025 AM CDT SAT APR 18 2026  
   
THIS AFTERNOON
 
W WIND 10 TO 20 KTS WITH A FEW GUSTS NEAR 25 KTS.  
WAVES 2 TO 4 FT. A CHANCE OF SPRINKLES.    
TONIGHT
 
W WIND 10 TO 20 KTS. A CHANCE OF SPRINKLES IN THE  
EVENING. WAVES 2 FT OR LESS.    
SUNDAY
 
N WIND 10 TO 20 KTS. PARTLY SUNNY. WAVES 2 FT OR LESS.    
SUNDAY NIGHT
 
N WIND 5 TO 10 KTS BACKING NW AFTER MIDNIGHT.  
CLEAR. WAVES 2 FT OR LESS.  
 

 
 
LMZ542-543-182215-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
1025 AM CDT SAT APR 18 2026  
   
THIS AFTERNOON
 
W WIND 10 TO 20 KTS WITH A FEW GUSTS NEAR 25  
KTS. WAVES 1 TO 3 FT. A CHANCE OF SPRINKLES.    
TONIGHT
 
W WIND 10 TO 20 KTS. A CHANCE OF SPRINKLES IN THE  
EVENING. WAVES 1 TO 3 FT. A SMALL CRAFT ADVISORY MAY BE NEEDED.    
SUNDAY
 
NW WIND 10 TO 20 KTS VEERING N IN THE AFTERNOON. A  
CHANCE OF FLURRIES IN THE MORNING. A CHANCE OF SPRINKLES. WAVES  
2 FT OR LESS.    
SUNDAY NIGHT
 
N WIND 5 TO 10 KTS. MOSTLY CLEAR. WAVES 2 FT OR  
LESS.  
 

 
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR MONDAY THROUGH WEDNESDAY.  
 
KIECKBUSCH  
 
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