342  
WHUS73 KGRB 040645  
MWWGRB  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE GREEN BAY WI  
145 AM CDT THU JUN 4 2026  
 
LMZ541>543-041445-  
/O.CON.KGRB.SC.Y.0057.260604T1900Z-260605T0600Z/  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
145 AM CDT THU JUN 4 2026  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS  
AFTERNOON TO 1 AM CDT FRIDAY...  
 
* WHAT...SOUTH WINDS 10 TO 15 KTS WITH GUSTS UP TO 25 KTS AND  
WAVES 3 TO 5 FT EXPECTED.  
 
* WHERE...LAKE MICHIGAN NEARSHORE WATERS FROM WASHINGTON ISLAND  
TO SHEBOYGAN.  
 
* WHEN...FROM 2 PM THIS AFTERNOON TO 1 AM CDT FRIDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
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