303  
FZUS53 KGRB 211818  
NSHGRB  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE GREEN BAY WI  
118 PM CDT SUN SEP 21 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF THE SHORE ON LAKE MICHIGAN  
 
LMZ521-522-220200-  
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-  
118 PM CDT SUN SEP 21 2025  
   
THIS AFTERNOON  
S WIND 5 TO 10 KTS. A CHANCE OF LIGHT SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 2 FT OR LESS.    
TONIGHT  
S WIND AROUND 5 KTS VEERING SW AFTER MIDNIGHT. A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE OF  
LIGHT SHOWERS. PATCHY FOG AFTER MIDNIGHT. WAVES 2 FT OR LESS.    
MONDAY  
SW WIND AROUND 5 KTS BACKING S IN THE AFTERNOON. A  
CHANCE OF LIGHT SHOWERS. A CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WAVES 2 FT OR LESS.    
MONDAY NIGHT  
SE WIND AROUND 5 KTS BACKING NE AFTER MIDNIGHT. A  
CHANCE OF LIGHT SHOWERS IN THE EVENING. WAVES 2 FT OR LESS.  
 
 
 
LMZ541-220200-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
118 PM CDT SUN SEP 21 2025  
   
THIS AFTERNOON  
S WIND 5 TO 10 KTS. A CHANCE OF LIGHT SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FT.    
TONIGHT  
S WIND 5 TO 10 KTS. PATCHY FOG. A SLIGHT CHANCE OF  
LIGHT SHOWERS AND THUNDERSTORMS. WAVES 2 FT OR LESS.    
MONDAY  
S WIND 5 TO 10 KTS. A CHANCE OF LIGHT SHOWERS. A CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. WAVES 2 FT OR LESS.    
MONDAY NIGHT  
S WIND AROUND 5 KTS BACKING NE AFTER MIDNIGHT. A  
CHANCE OF LIGHT SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES  
2 FT OR LESS.  
 
 
 
LMZ542-543-220200-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
118 PM CDT SUN SEP 21 2025  
   
THIS AFTERNOON  
S WIND 5 TO 10 KTS. A CHANCE OF LIGHT SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FT.    
TONIGHT  
SW WIND 5 TO 10 KTS. A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING. A SLIGHT CHANCE OF LIGHT SHOWERS. PATCHY FOG  
AFTER MIDNIGHT. WAVES 2 FT OR LESS.    
MONDAY  
SW WIND AROUND 5 KTS BACKING S IN THE AFTERNOON. A  
CHANCE OF SHOWERS. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
WAVES 2 FT OR LESS.    
MONDAY NIGHT  
S WIND AROUND 5 KTS BACKING N AFTER MIDNIGHT. A  
CHANCE OF LIGHT SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES  
2 FT OR LESS.  
 
 
 
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR TUESDAY THROUGH THURSDAY.  
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