510  
WHUS54 KLCH 221432  
SMWLCH  
GMZ472-475-221530-  
/O.NEW.KLCH.MA.W.0042.180422T1432Z-180422T1530Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE LAKE CHARLES LA  
932 AM CDT SUN APR 22 2018  
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
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...  
 
* UNTIL 1030 AM CDT.  
 
* AT 932 AM CDT, A STRONG THUNDERSTORM WAS LOCATED OVER VERMILION  
256, OR 66 NM SOUTH OF MARSH ISLAND, MOVING EAST AT 20 KNOTS.  
 
HAZARD...WIND GUSTS TO 40 KNOTS.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
EUGENE ISLAND 224, SOUTH MARSH ISLAND 78, SOUTH MARSH ISLAND 69,  
SOUTH MARSH ISLAND 58, EUGENE ISLAND 243, SOUTH MARSH ISLAND 99,  
SOUTH MARSH ISLAND 76, SOUTH MARSH ISLAND 61, VERMILION 226, EUGENE  
ISLAND 217, VERMILION 215, VERMILION 214, VERMILION 245, VERMILION  
256, VERMILION 250 AND VERMILION 252.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY  
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR  
IMMEDIATELY.  
 
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE  
OPEN WATER STAY BELOW DECK IF POSSIBLE, KEEP AWAY FROM UNGROUNDED  
METAL OBJECTS.  
 

 
 
LAT...LON 2862 9146 2842 9206 2846 9224 2853 9242  
2857 9263 2881 9215  
TIME...MOT...LOC 1432Z 275DEG 19KT 2854 9233  
 
HAIL...0.00IN  
WIND...40KTS  
 

 
 
K. KUYPER  
 
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