745  
FZNT31 KNHC 210908  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
408 AM EST TUE NOV 21 2017  
 
MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC  
FROM 07N TO 22N BETWEEN 55W AND 64W, THE SW N ATLANTIC S OF  
31N W OF 65W INCLUDING BAHAMAS, AND THE CARIBBEAN SEA.  
 
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE AVERAGE  
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE  
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.  
 
SYNOPSIS FOR CARIBBEAN SEA AND TROPICAL N ATLC FROM 07N TO 19N  
BETWEEN 55W AND 64W  
   
SYNOPSIS
 
A TROUGH WILL MEANDER OVER THE WEST-CENTRAL  
CARIBBEAN THROUGH AL LEAST THU. A COLD FRONT WILL ENTER THE NW  
CARIBBEAN ON THU NIGHT, THEN STALL AND WEAKEN OVER THE NW  
CARIBBEAN FRI. BUILDING HIGH PRESSURE IN THE WAKE OF THE FRONT  
WILL BRING INCREASING NORTHERLY WINDS JUST OFF THE COAST OF  
NICARAGUA THU NIGHT THROUGH SAT.  
 
NW CARIBBEAN W OF 85W  
   
TODAY
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
TONIGHT
 
NE WINDS LESS THAN 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED NIGHT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING NW LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS.    
THU
 
W WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO 3 FT  
IN THE AFTERNOON.    
THU NIGHT
 
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
NW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN  
10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
SAT
 
NW WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
SAT NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
TODAY
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TONIGHT
 
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. S OF 18N, SEAS 3 TO 5 FT. ELSEWHERE, SEAS 3 FT IN THE  
EVENING, SUBSIDING TO 2 FT OR LESS.    
WED
 
S OF 18N, E WINDS 10 TO 15 KT. ELSEWHERE, NE WINDS LESS  
THAN 10 KT IN THE MORNING, BECOMING VARIABLE WINDS LESS THAN  
10 KT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
WED NIGHT
 
S OF 18N, NE WINDS 10 TO 15 KT. ELSEWHERE, VARIABLE  
WINDS LESS THAN 10 KT, BECOMING N LESS THAN 10 KT AFTER  
MIDNIGHT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
THU
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 3 FT.    
FRI
 
N WINDS 10 TO 15 KT. SEAS 3 FT.    
FRI NIGHT
 
N WINDS 10 TO 15 KT. SEAS 3 FT.    
SAT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
TODAY
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TONIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED
 
WITHIN 90 NM OF COAST OF COLOMBIA, E WINDS 10 TO 15 KT.  
ELSEWHERE, E WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.  
SEAS 3 TO 5 FT.    
WED NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
SW CARIBBEAN S OF 11N  
   
TODAY
 
NW WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
TONIGHT
 
NW WINDS LESS THAN 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED
 
NW WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED NIGHT
 
NW WINDS LESS THAN 10 KT. SEAS 3 FT.    
THU
 
NW WINDS LESS THAN 10 KT. SEAS 3 FT.    
THU NIGHT
 
NW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI
 
NW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT
 
E WINDS LESS THAN 10 KT, SHIFTING TO W IN THE AFTERNOON.  
SEAS 3 TO 5 FT.    
SAT NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
TODAY
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TONIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
WED
 
E WINDS 10 TO 15 KT. GULF OF VENEZUELA, SEAS 3 TO 4 FT IN  
THE MORNING, SUBSIDING TO 2 FT OR LESS. ELSEWHERE, SEAS 4 TO  
5 FT.    
WED NIGHT
 
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO  
15 KT ELSEWHERE. SEAS 3 TO 5 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
TODAY
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TONIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
TODAY
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS  
   
SYNOPSIS
 
A STATIONARY FRONT EXTENDS FROM 28N65W TO SE  
FLORIDA. THE FRONT WILL LIFT NORTHWARD THROUGH MIDWEEK. ANOTHER  
COLD FRONT WILL MOVE OFF THE NE FLORIDA COAST ON WED, FOLLOWED BY  
A THIRD COLD FRONT ENTERING THE FAR NW WATERS BY LATE THU. A  
SURFACE TROUGH IS OVER THE SE WATERS AND WILL DRIFT NW TODAY AND  
WED.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TODAY
 
SE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TONIGHT
 
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 6 TO 8 FT.    
WED
 
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN  
THE AFTERNOON. SEAS 5 TO 6 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
THU
 
S WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
THU NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
FRI
 
W WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
FRI NIGHT
 
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SAT
 
NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
W WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TODAY
 
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.    
TONIGHT
 
SE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.    
WED
 
W OF 70W, SW WINDS 10 TO 20 KT, SHIFTING TO NW 10 TO  
15 KT IN THE AFTERNOON. ELSEWHERE, SE WINDS 15 TO 25 KT. SEAS  
7 TO 10 FT W OF 70W, AND 9 TO 11 FT ELSEWHERE.    
WED NIGHT
 
W OF 70W, NE WINDS 10 TO 15 KT. ELSEWHERE, S WINDS  
15 TO 25 KT, SHIFTING TO NW 10 TO 20 KT AFTER MIDNIGHT. SEAS  
6 TO 8 FT W OF 70W, AND 8 TO 12 FT ELSEWHERE.    
THU
 
NE WINDS 10 TO 15 KT, SHIFTING TO E IN THE AFTERNOON.  
SEAS 6 TO 9 FT.    
THU NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
FRI
 
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN  
THE AFTERNOON. SEAS 5 TO 6 FT.    
FRI NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT
 
SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
 
BAHAMAS N OF 22N  
   
TODAY
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
TONIGHT
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
WED
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
THU
 
S WINDS LESS THAN 10 KT. SEAS 3 FT.    
THU NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI
 
SW WINDS LESS THAN 10 KT. SEAS 3 FT.    
FRI NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT
 
NW WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS, BUILDING TO  
3 FT IN THE AFTERNOON.    
SAT NIGHT
 
NW WINDS LESS THAN 10 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TODAY
 
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TONIGHT
 
SE WINDS 10 TO 20 KT W OF 70W, AND SE 15 TO 25 KT  
ELSEWHERE. SEAS 7 TO 10 FT.    
WED
 
W OF 70W, S WINDS 10 TO 15 KT, SHIFTING TO SW IN THE  
AFTERNOON. ELSEWHERE, SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
WED NIGHT
 
W OF 70W, NW WINDS LESS THAN 10 KT IN THE EVENING,  
BECOMING VARIABLE WINDS LESS THAN 10 KT. ELSEWHERE, S WINDS  
10 TO 20 KT. SEAS 5 TO 7 FT W OF 70W, AND 7 TO 10 FT ELSEWHERE.    
THU
 
S WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE  
WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
THU NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.    
FRI
 
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
SAT
 
S WINDS 10 KT. SEAS 4 TO 5 FT.    
SAT NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
TODAY
 
E WINDS 10 TO 15 KT, SHIFTING TO SE IN THE AFTERNOON.  
SEAS 3 TO 5 FT.    
TONIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED
 
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 6 FT.    
WED NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
TODAY
 
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TONIGHT
 
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.    
WED
 
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
WED NIGHT
 
E WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
FRI
 
E WINDS 10 KT. SEAS 5 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 KT. SEAS 5 TO 6 FT.    
SAT
 
E WINDS 10 KT. SEAS 5 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 KT. SEAS 5 TO 6 FT.  
 
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