499  
FZUS53 KGRB 212033  
NSHGRB  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE GREEN BAY WI  
333 PM CDT SUN SEP 21 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF THE SHORE ON LAKE MICHIGAN  
 
LMZ521-522-220100-  
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-  
333 PM CDT SUN SEP 21 2025  
   
REST OF THIS AFTERNOON
 
S WIND 5 TO 10 KTS. SCATTERED LIGHT  
SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 2 FT OR LESS.    
TONIGHT
 
S WIND AROUND 5 KTS VEERING SW AFTER MIDNIGHT.  
ISOLATED LIGHT SHOWERS AND THUNDERSTORMS IN THE EVENING. PATCHY  
DENSE FOG AFTER MIDNIGHT. WAVES 2 FT OR LESS.    
MONDAY
 
SW WIND AROUND 5 KTS BACKING S IN THE AFTERNOON. PATCHY  
FOG IN THE MORNING. 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 AND THUNDERSTORMS IN THE EVENING. PATCHY  
FOG IN THE EVENING, THEN AREAS OF FOG AFTER MIDNIGHT. WAVES 2 FT  
OR LESS.    
TUESDAY
 
NE WIND 5 TO 10 KTS. PATCHY FOG IN THE MORNING. .  
WAVES 2 FT OR LESS.  
 

 
 
LMZ541-220100-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
333 PM CDT SUN SEP 21 2025  
   
REST OF THIS AFTERNOON
 
S WIND 5 TO 10 KTS. SCATTERED LIGHT  
SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO 3 FT.    
TONIGHT
 
S WIND 5 TO 10 KTS. ISOLATED LIGHT SHOWERS AND  
THUNDERSTORMS IN THE EVENING. PATCHY DENSE FOG. WAVES 2 FT OR  
LESS.    
MONDAY
 
S WIND 5 TO 10 KTS. PATCHY FOG IN THE MORNING. 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. PATCHY  
FOG IN THE EVENING, THEN AREAS OF FOG AFTER MIDNIGHT. WAVES 2 FT  
OR LESS.    
TUESDAY
 
NE WIND 5 TO 10 KTS. PATCHY FOG IN THE MORNING. .  
WAVES 2 FT OR LESS.  
 

 
 
LMZ542-543-220100-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
333 PM CDT SUN SEP 21 2025  
   
REST OF THIS AFTERNOON
 
S WIND 5 TO 10 KTS. SCATTERED LIGHT  
SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO 3 FT.    
TONIGHT
 
SW WIND 5 TO 10 KTS. ISOLATED LIGHT SHOWERS AND  
THUNDERSTORMS IN THE EVENING. PATCHY DENSE FOG AFTER MIDNIGHT.  
WAVES 2 FT OR LESS.    
MONDAY
 
SW WIND AROUND 5 KTS BACKING S IN THE AFTERNOON. PATCHY  
FOG IN THE MORNING. 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.  
PATCHY FOG IN THE EVENING. AREAS OF FOG AFTER MIDNIGHT. A CHANCE  
OF LIGHT SHOWERS AND THUNDERSTORMS. WAVES 2 FT OR LESS.    
TUESDAY
 
NE WIND 5 TO 10 KTS. PATCHY FOG IN THE MORNING. .  
WAVES 2 FT OR LESS.  
 

 
 
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR WEDNESDAY THROUGH FRIDAY.  
 
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