147  
FZNT31 KNHC 242029  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
429 PM EDT TUE APR 24 2018  
 
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
 
WINDS WILL PULSE TO FRESH TO STRONG OVER THE CENTRAL  
CARIBBEAN DURING THE OVERNIGHT HOURS. ELSEWHERE, GENTLE TO  
MODERATE WINDS WILL PREVAIL.  
 
NW CARIBBEAN W OF 85W  
   
TONIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED
 
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
THU
 
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN  
THE AFTERNOON. SEAS 3 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT, SHIFTING TO E AFTER  
MIDNIGHT. SEAS 3 TO 4 FT.    
SAT
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
SUN
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
TONIGHT
 
E WINDS 10 TO 15 KT S OF 18N, AND VARIABLE LESS THAN  
10 KT ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 2 FT OR LESS  
ELSEWHERE.    
WED
 
E WINDS 10 TO 15 KT S OF 18N, AND VARIABLE LESS THAN  
10 KT ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS  
ELSEWHERE.    
WED NIGHT
 
E WINDS 10 TO 15 KT S OF 18N, AND VARIABLE LESS  
THAN 10 KT ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS  
ELSEWHERE.    
THU
 
S OF 18N, E WINDS 10 TO 15 KT. ELSEWHERE, VARIABLE WINDS  
LESS THAN 10 KT, BECOMING SE LESS THAN 10 KT IN THE AFTERNOON.  
SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 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.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
TONIGHT
 
NE WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.    
WED
 
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,  
AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.    
WED NIGHT
 
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.    
THU
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
THU NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.  
 
SW CARIBBEAN S OF 11N  
   
TONIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
WED
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
WED NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU
 
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 6 FT.    
THU NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
FRI
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
NE WINDS LESS THAN 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
TONIGHT
 
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 4 TO 6 FT.    
WED
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,  
AND 5 TO 7 FT ELSEWHERE.    
WED NIGHT
 
E WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 4 TO 6 FT.    
THU
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
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 5 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
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 20 KT. SEAS 5 TO 7 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.  
 
SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS  
   
SYNOPSIS
 
A COLD FRONT EXTENDING FROM 31N78W TO SOUTH FLORIDA  
WILL REACH FROM 31N70W TO THE STRAITS OF FLORIDA THU WHERE IT  
WILL STALL AND DISSIPATE. A SECOND COLD FRONT WILL MOVE INTO THE  
NW WATERS FRI NIGHT. THIS FRONT WILL REACH FROM NEAR 31N72W TO  
THE STRAITS OF FLORIDA SAT NIGHT, AND FROM 31N66W TO W CUBA SUN  
NIGHT.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TONIGHT
 
SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
WED
 
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
WED NIGHT
 
W WINDS 10 TO 15 KT, SHIFTING TO SW AFTER MIDNIGHT.  
SEAS 4 TO 6 FT.    
THU
 
SW WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
THU NIGHT
 
SW WINDS LESS THAN 10 KT, SHIFTING TO S AFTER  
MIDNIGHT. SEAS 3 TO 4 FT.    
FRI
 
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
SAT
 
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TONIGHT
 
SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
WED
 
S WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
WED NIGHT
 
W OF 70W, SW WINDS 10 TO 15 KT, DIMINISHING TO LESS  
THAN 10 KT AFTER MIDNIGHT. ELSEWHERE, S WINDS 10 TO 20 KT. SEAS  
6 TO 8 FT.    
THU
 
SW WINDS LESS THAN 10 KT W OF 70W, AND S 10 TO 15 KT  
ELSEWHERE. SEAS 5 TO 7 FT.    
THU NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI
 
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SAT
 
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SUN
 
W WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SUN NIGHT
 
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.  
 
BAHAMAS N OF 22N  
   
TONIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
WED
 
SW WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE  
EVENING, SUBSIDING TO 2 FT OR LESS.    
THU
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS THAN  
10 KT IN THE AFTERNOON. SEAS 2 FT OR LESS.    
THU NIGHT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS.    
FRI
 
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT
 
SW WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
SAT NIGHT
 
NW WINDS LESS THAN 10 KT, SHIFTING TO NE AFTER  
MIDNIGHT. SEAS 2 FT OR LESS.    
SUN
 
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.   
SUN NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TONIGHT
 
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
WED
 
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
WED NIGHT
 
W OF 70W, S WINDS 10 TO 15 KT, DIMINISHING TO LESS  
THAN 10 KT AFTER MIDNIGHT. ELSEWHERE, SE WINDS 10 TO 15 KT. SEAS  
5 TO 6 FT.    
THU
 
S WINDS LESS THAN 10 KT W OF 70W, AND SE 10 TO 15 KT  
ELSEWHERE. SEAS 4 TO 5 FT.    
THU NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SAT
 
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
S WINDS 10 TO 15 KT, SHIFTING TO SE AFTER MIDNIGHT.  
SEAS 4 TO 6 FT.    
SUN
 
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
WED
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 5 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.  
 
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