702  
FZUS53 KGRB 201833  
NSHGRB  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE GREEN BAY WI  
133 PM CDT WED AUG 20 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF THE SHORE ON LAKE MICHIGAN  
 
LMZ521-522-210200-  
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-  
133 PM CDT WED AUG 20 2025  
   
THIS AFTERNOON
 
NE WIND 5 TO 10 KTS. SCATTERED SPRINKLES. WAVES  
2 FT OR LESS.    
TONIGHT
 
NE WIND 5 TO 10 KTS. MOSTLY CLEAR. WAVES 2 FT OR LESS.   
THURSDAY
 
N WIND 5 TO 10 KTS VEERING E IN THE AFTERNOON. PARTLY  
CLOUDY IN THE MORNING THEN CLEARING. WAVES 2 FT OR LESS.    
THURSDAY NIGHT
 
S WIND 5 TO 10 KTS VEERING SW AFTER MIDNIGHT.  
MOSTLY CLEAR. WAVES 2 FT OR LESS.  
 

 
 
LMZ541-210200-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
133 PM CDT WED AUG 20 2025  
   
THIS AFTERNOON
 
N WIND 5 TO 10 KTS. SCATTERED SPRINKLES. WAVES  
2 FT OR LESS.    
TONIGHT
 
NE WIND 5 TO 10 KTS. MOSTLY CLEAR. WAVES 2 FT OR LESS.   
THURSDAY
 
N WIND 5 TO 10 KTS VEERING E IN THE AFTERNOON. PARTLY  
CLOUDY IN THE MORNING THEN CLEARING. WAVES 2 FT OR LESS.    
THURSDAY NIGHT
 
SW WIND 5 TO 10 KTS. MOSTLY CLEAR. WAVES 2 FT  
OR LESS.  
 

 
 
LMZ542-543-210200-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
133 PM CDT WED AUG 20 2025  
   
THIS AFTERNOON
 
NE WIND 10 TO 15 KTS. SCATTERED SPRINKLES.  
WAVES 1 TO 3 FT.    
TONIGHT
 
NE WIND 10 TO 15 KTS. SCATTERED SPRINKLES IN THE  
EVENING. WAVES 1 TO 3 FT.    
THURSDAY
 
NE WIND 5 TO 10 KTS. PARTLY CLOUDY IN THE MORNING  
THEN CLEARING. WAVES 2 FT OR LESS.    
THURSDAY NIGHT
 
E WIND AROUND 5 KTS VEERING SW AFTER MIDNIGHT.  
MOSTLY CLEAR. WAVES 2 FT OR LESS.  
 

 
 
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR FRIDAY THROUGH SUNDAY.  
 
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