204  
WHUS73 KGRB 010158  
MWWGRB  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE GREEN BAY WI  
858 PM CDT SUN APR 30 2017  
 
...STRONG NORTHEAST WINDS AND HIGH WAVES EXPECTED THROUGH EARLY  
MONDAY MORNING...  
 
.A STRONG STORM SYSTEM APPROACHING THE AREA FROM THE SOUTHWEST  
WILL RESULT IN NORTHEAST GALES AND HIGH WAVES ON THE BAY AND LAKE  
THROUGH TONIGHT. WINDS WILL SHIFT TO THE SOUTH MONDAY AS THE  
CENTER OF THE LOW PRESSURE SYSTEM TRACKS ACROSS WISCONSIN... AND  
AN OCCLUDED FRONT WRAPS NORTHEAST ACROSS THE AREA. WINDS WILL  
INCREASE FROM THE NORTHWEST AGAIN TUESDAY AS THE LOW PULLS AWAY  
FROM THE AREA.  
 
LMZ521-522-541>543-011000-  
/O.CON.KGRB.GL.W.0008.000000T0000Z-170501T1200Z/  
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-  
858 PM CDT SUN APR 30 2017  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY
 
 
* WINDS...NORTHEAST WINDS TO 30 KNOTS...WITH GALE FORCE GUSTS TO  
AROUND 35 KNOTS THROUGH TONIGHT.  
 
* WAVES...WAVES 4 TO 7 FEET ON THE BAY...AND 6 TO 9 FEET ON THE  
LAKE.  
 
* WINDS MAY DIMINISH SOME LATE TONIGHT...THEN SHIFT TO THE SOUTH  
MONDAY MORNING. THE SOUTH WINDS ARE LIKELY TO MAINTAIN  
SUFFICIENT WAVES TO WARRANT A SMALL CRAFT ADVISORY FOR THE  
LAKE FOR MONDAY INTO MONDAY NIGHT.  
 
* WINDS WILL VEER TO THE WEST-NORTHWEST AND INCREASE AGAIN BY  
TUESDAY MORNING. A SMALL CRAFT ADVISORY MAY BE NECESSARY  
TUESDAY FOR THE LAKE AND THE BAY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A GALE WARNING MEANS WINDS AROUND 35 KNOTS ARE EXPECTED.  
OPERATING A VESSEL IN GALE CONDITIONS REQUIRES EXPERIENCE AND  
PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED THAT MARINERS  
WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR TO THE ONSET  
OF GALE CONDITIONS.  
 

 
 

 
 
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