431  
WHUS54 KHGX 290300  
SMWHGX  
GMZ335-355-290330-  
/O.NEW.KHGX.MA.W.0194.170829T0300Z-170829T0330Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX  
1000 PM CDT MON AUG 28 2017  
 
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM...  
GALVESTON BAY...  
 
* UNTIL 1030 PM CDT  
 
* AT 1000 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING  
WATERSPOUTS WAS LOCATED OVER HIGH ISLAND 63...MOVING WEST AT 20  
KNOTS.  
 
HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...WATERSPOUTS CAN QUICKLY FORM AND CAPSIZE BOATS...DAMAGE  
VESSELS AND OIL RIGS...AND CREATE SUDDENLY HIGHER WAVES.  
MAKE SURE ALL ON BOARD ARE IN A SECURE LOCATION AND  
WEARING LIFE JACKETS. SMALL CRAFT COULD BE DAMAGED IN  
BRIEFLY HIGHER WINDS AND SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
NORTHWESTERN EAST GALVESTON BAY...GALVESTON BAY ENTRANCE AND NORTH  
JETTY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY  
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR  
IMMEDIATELY.  
 

 
 
LAT...LON 2955 9465 2944 9438 2936 9442 2934 9479  
TIME...MOT...LOC 0300Z 107DEG 22KT 2942 9443  
 
WATERSPOUT...POSSIBLE  
HAIL...0.00IN  
WIND...>34KTS  
 

 
11  
 
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