182  
WHCA52 TJSJ 121729  
SMWSJU  
AMZ741-742-745-121900-  
/O.NEW.TJSJ.MA.W.0005.180812T1729Z-180812T1900Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE SAN JUAN PR  
129 PM AST SUN AUG 12 2018  
 
THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM...  
COASTAL WATERS OF SOUTHWESTERN PUERTO RICO OUT 10 NM...  
MONA PASSAGE SOUTHWARD TO 17N...  
 
* UNTIL 300 PM AST  
 
* AT 125 PM AST, A STRONG THUNDERSTORM WAS LOCATED OVER MAINLY AREAS  
JUST OFF THE WEST COAST OR PUERTO RICO. THE STRONG THUNDERSTORM  
WAS RAPIDLY DEVELOPING AND MOVING WEST AROUND 15 KNOTS.  
 
HAZARD...WIND GUSTS 34 KNOTS OR GREATER AND TORRENTIAL RAINFALL.  
 
SOURCE...RADAR.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY OPEN WATERS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE  
EXPECTED.  
 
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 1825 6721 1807 6722 1804 6748 1826 6749  
TIME...MOT...LOC 1725Z 086DEG 0KT 1818 6735  
 
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
RAM/RGH/GL  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab PR Page Main Text Page