651  
WHUS74 KLCH 111448  
MWWLCH  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE LAKE CHARLES LA  
948 AM CDT MON SEP 11 2017  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT MONDAY
 
 
.A TIGHT PRESSURE GRADIENT AROUND THE LARGE CIRCULATION OF IRMA  
WILL KEEP ELEVATED WINDS AND SEAS OVER THE COASTAL WATERS THROUGH  
MONDAY.  
 
GMZ472-475-120000-  
/O.CON.KLCH.SC.Y.0030.000000T0000Z-170912T0000Z/  
WATERS FROM INTRACOASTAL CITY TO CAMERON LA FROM 20 TO 60 NM-  
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA FROM  
20 TO 60 NM-  
948 AM CDT MON SEP 11 2017  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS  
EVENING...  
 
* WINDS...SUSTAINED 20 TO 25 KNOTS WITH HIGHER GUSTS  
 
* WAVES/SEAS...4 TO 8 FEET  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.  
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.  
 

 
 

 
 
GMZ470-111800-  
/O.CON.KLCH.SC.Y.0030.000000T0000Z-170911T1800Z/  
WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-  
948 AM CDT MON SEP 11 2017  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS  
AFTERNOON...  
 
* WINDS...SUSTAINED 20 TO 25 KNOTS WITH HIGHER GUSTS  
 
* WAVES/SEAS...4 TO 7 FEET  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.  
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.  
 

 
 

 
 
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