446  
FZUS53 KGRB 180928  
NSHGRB  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE GREEN BAY WI  
428 AM CDT FRI SEP 18 2026  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
 
LMZ521-522-181600-  
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-  
428 AM CDT FRI SEP 18 2026  
   
EARLY THIS MORNING
 
NE WIND 10 TO 15 KTS. WAVES 2 FT OR LESS.  
MOSTLY CLOUDY.    
TODAY
 
E WIND 10 TO 15 KTS. WAVES 2 FT OR LESS. A CHANCE OF  
SHOWERS IN THE AFTERNOON.    
TONIGHT
 
E WIND 10 TO 15 KTS. WAVES 2 FT OR LESS. A CHANCE OF  
SHOWERS.    
SATURDAY
 
E WIND 10 TO 15 KTS. WAVES 1 TO 3 FT. A CHANCE OF  
SHOWERS.    
SATURDAY NIGHT
 
NE WIND 10 TO 15 KTS. WAVES 1 TO 3 FT. MOSTLY  
CLOUDY.  
 

 
 
LMZ541>543-181600-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
428 AM CDT FRI SEP 18 2026  
   
EARLY THIS MORNING
 
NE WIND 10 TO 15 KTS. WAVES 1 TO 3 FT.  
MOSTLY CLOUDY.    
TODAY
 
NE WIND 10 TO 15 KTS. WAVES 2 TO 4 FT. A CHANCE OF  
SHOWERS IN THE AFTERNOON.    
TONIGHT
 
E WIND 10 TO 15 KTS VEERING SE 10 TO 20 KTS AFTER  
MIDNIGHT. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT AFTER MIDNIGHT.  
RAIN SHOWERS LIKELY IN THE EVENING, THEN A CHANCE OF SHOWERS  
AFTER MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.    
SATURDAY
 
SE WIND 10 TO 20 KTS BACKING E 10 TO 15 KTS EARLY IN  
THE AFTERNOON. WAVES 4 TO 7 FT. A CHANCE OF SHOWERS. A SMALL  
CRAFT ADVISORY MAY BE NEEDED.    
SATURDAY NIGHT
 
NE WIND 10 TO 15 KTS. WAVES 2 TO 4 FT. A CHANCE  
OF SHOWERS.  
 

 
 
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR SUNDAY THROUGH TUESDAY.  
 
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