843  
WHUS54 KHGX 171628  
SMWHGX  
GMZ335-171645-  
/O.NEW.KHGX.MA.W.0141.170717T1628Z-170717T1645Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX  
1128 AM CDT MON JUL 17 2017  
 
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
GALVESTON BAY...  
 
* UNTIL 1145 AM CDT  
 
* AT 1127 AM CDT...A SEVERE THUNDERSTORM PRODUCING WATERSPOUTS WAS  
LOCATED OVER NORTHWESTERN GALVESTON BAY JUST OFF THE COAST OF LA  
PORTE AND SILVAN BEACH. THE THUNDERSTORM WAS NEARLY STATIONARY.  
 
HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...PUBLIC.  
 
IMPACT...WATERSPOUTS CAN 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 GALVESTON BAY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY  
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR  
IMMEDIATELY.  
 
REPORT SEVERE WEATHER TO THE COAST GUARD OR THE NATIONAL WEATHER  
SERVICE.  
 

 
 
LAT...LON 2966 9501 2968 9498 2961 9495 2960 9498  
2962 9500 2963 9502  
TIME...MOT...LOC 1627Z 355DEG 5KT 2964 9500  
 
WATERSPOUT...OBSERVED  
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
40  
 
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