720  
WHUS52 KMFL 182303  
SMWMFL  
AMZ630-651-182330-  
/O.NEW.KMFL.MA.W.0294.171018T2303Z-171018T2330Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE MIAMI FL  
703 PM EDT WED OCT 18 2017  
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
BISCAYNE BAY...  
COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF FL OUT 20 NM...  
 
* UNTIL 730 PM EDT  
 
* AT 703 PM EDT...A SEVERE THUNDERSTORM PRODUCING WATERSPOUTS WAS  
LOCATED 7 NM EAST OF CAPE FLORIDA...MOVING SOUTHWEST AT 10 KNOTS.  
 
HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.  
 
SOURCE...MARINE WEATHER SPOTTER.  
 
IMPACT...WATERSPOUTS CAN CAPSIZE BOATS...DAMAGE VESSELS AND  
CREATE SUDDENLY HIGHER WAVES. MAKE SURE ALL ON BOARD ARE  
IN A SECURE LOCATION AND WEARING LIFE JACKETS. EXPECT  
WIND GUSTS IN EXCESS OF 34 KNOTS...SUDDENLY HIGHER  
WAVES...FREQUENT LIGHTNING AND HEAVY DOWNPOURS. MAKE SURE  
ALL ON BOARD ARE WEARING LIFE JACKETS.  
 
* LOCATIONS IMPACTED INCLUDE...  
CAPE FLORIDA AND KEY BISCAYNE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY  
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR  
IMMEDIATELY.  
 

 
 
LAT...LON 2575 7997 2564 7991 2553 8013 2569 8023  
TIME...MOT...LOC 2303Z 064DEG 8KT 2568 8002  
 
WATERSPOUT...OBSERVED  
HAIL...0.00IN  
WIND...>34KTS  
 

 
 
JT  
 
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