965  
WHUS51 KBOX 120907  
SMWBOX  
ANZ271-121000-  
/O.NEW.KBOX.MA.W.0052.180812T0907Z-180812T1000Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
507 AM EDT SUN AUG 12 2018  
 
THE NATIONAL WEATHER SERVICE IN BOSTON/NORTON HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 35 NM  
OFFSHORE...  
 
* UNTIL 600 AM EDT.  
 
* AT 506 AM EDT, A STRONG THUNDERSTORM CAPABLE OF PRODUCING  
WATERSPOUTS WAS LOCATED 38 NM SOUTHEAST OF NANTUCKET, MOVING  
NORTHEAST AT 15 KNOTS.  
 
HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...RADAR.  
 
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY  
HAZARDOUS SEAS. 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...  
 
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY  
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR  
IMMEDIATELY.  
 

 
 
LAT...LON 4106 6919 4096 6925 4094 6927 4092 6934  
4101 6949 4125 6925 4115 6915  
TIME...MOT...LOC 0906Z 230DEG 13KT 4099 6935  
 
WATERSPOUT...POSSIBLE  
HAIL...0.00IN  
WIND...>34KTS  
 

 
FIELD  
 
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