323  
WHUS73 KGRB 190937  
MWWGRB  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE GREEN BAY WI  
437 AM CDT SUN JUL 19 2026  
 
LMZ521-522-541>543-191745-  
/O.CON.KGRB.MS.Y.0002.000000T0000Z-260720T1200Z/  
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-  
ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-  
437 AM CDT SUN JUL 19 2026  
   
..DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY  
 
* WHAT...DENSE SMOKE WILL REDUCE VISIBILITY TO 1 TO 2 NM.  
 
* WHERE...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 AND ROCK ISLAND PASSAGE TO STURGEON BAY WI.  
 
* WHEN...UNTIL 7 AM CDT MONDAY.  
 
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR AND COMPASS.  
 
 
 
 
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