489  
FZNT31 KNHC 260314  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1114 PM EDT THU APR 25 2024  
 
MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC  
FROM 07N TO 19N W OF 55W, THE N ATLANTIC FROM 19N TO  
31N W OF 55W INCLUDING THE 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 ATLANTIC FROM  
07N TO 19N W OF 55W  
   
SYNOPSIS
 
HIGH PRESSURE NORTH OF THE GREATER ANTILLES IS  
SUSTAINING FRESH TO STRONG TRADE WINDS OVER THE SOUTH-CENTRAL  
CARIBBEAN, AND MODERATE TO FRESH WINDS ELSEWHERE, INCLUDING THE  
WINDWARD PASSAGE. BY LATE FRI, STRENGTHENING OF THE HIGH  
PRESSURE WILL ALSO FORCE FRESH TO STRONG TRADE WINDS IN THE GULF  
OF HONDURAS, LEE OF CUBA, WINDWARD PASSAGE AND JUST SOUTH OF  
HISPANIOLA THROUGH EARLY NEXT WEEK.  
 
NW CARIBBEAN W OF 85W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.    
SAT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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.    
MON
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
OVERNIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
MON
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
OVERNIGHT
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI
 
E WINDS 10 TO 20 KT WITHIN 90 NM OF COAST OF COLOMBIA,  
AND NE 10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT.    
FRI NIGHT
 
NE WINDS 10 TO 20 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 15 KT ELSEWHERE. 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.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
MON
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
SW CARIBBEAN S OF 11N  
   
OVERNIGHT
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
MON
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
TUE
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
TUE NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
OVERNIGHT
 
NE WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 4 TO 5 FT.    
FRI
 
E WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT GULF OF VENEZUELA, AND E 10 TO  
15 KT ELSEWHERE. SEAS 4 TO 5 FT.    
SAT
 
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.    
SAT NIGHT
 
NE 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.    
MON
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
OVERNIGHT
 
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 LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.   
MON
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TUE
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TUE NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
OVERNIGHT
 
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.   
SUN
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.   
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
MON
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.   
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS
 
A COLD FRONT THAT IS PRESENTLY NORTHWEST OF THE AREA  
WILL MERGE WITH A FRONTAL TROUGH THAT EXTENDS FROM 31N61W TO  
EASTERN DOMINICAN REPUBLIC LATE ON FRI. THE COLD FRONT WILL  
REACH FROM NEAR 31N58W TO 26N65W TO EASTERN CUBA BY SAT MORNING,  
AND FROM NEAR 25N55W TO HISPANIOLA BY SUN MORNING, THEN STALL  
AND WEAKEN INTO A TROUGH OVER THE FAR SOUTHEASTERN PART LATE SUN  
THROUGH MON NIGHT. NORTH SWELL BEHIND THE FRONT WILL BUILD SEAS  
TO 8 TO 11 FT OVER MOST OF THE AREA NORTHEAST OF THE BAHAMAS BY  
SUN. STRENGTHENING HIGH PRESSURE IN THE WAKE OF THE FRONT WILL  
RESULT IN FRESH TO STRONG NORTH TO NORTHEAST WINDS BEHIND THE  
FRONT FROM LATE FRI THROUGH SUN. BY LATE SUN, THESE WINDS ARE  
EXPECTED TO BE AT MAINLY FRESH SPEEDS SOUTH OF 29N AND WEST OF  
60W. AT THAT TIME, FRESH TO STRONG WEST TO NORTHWEST WINDS ARE  
EXPECTED OVER THE FAR NORTHEAST FORECAST WATERS ALONG WITH  
BUILDING SEAS. RATHER TRANQUIL CONDITIONS ARE EXPECTED TUE AND  
TUE NIGHT AS HIGH PRESSURE BECOMES CENTERED OVER THE NW PART OF  
THE OFFSHORE WATERS, WITH THE INDUCED GRADIENT SUPPORTING FRESH  
TO LOCALLY STRONG NORTHEAST TO EAST WINDS OVER THE SOUTHERN  
WATERS.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
OVERNIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE
 
SE WINDS 10 KT. SEAS 4 TO 6 FT.    
TUE NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
OVERNIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
SAT NIGHT
 
NE WINDS 15 TO 20 KT. SEAS 7 TO 9 FT.    
SUN
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
SUN NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
MON
 
N TO NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.   
MON NIGHT
 
N WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
TUE
 
NW TO N WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.   
TUE NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.  
 
BAHAMAS N OF 22N  
   
OVERNIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
MON
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
MON NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
FRI
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT
 
NE WINDS 15 TO 20 KT W OF 70W, AND NE 10 TO 20 KT  
ELSEWHERE. SEAS 5 TO 7 FT.    
SAT
 
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
SUN
 
NE WINDS 15 TO 20 KT. SEAS 7 TO 9 FT.    
SUN NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.    
MON
 
NE WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.    
MON NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
TUE
 
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
TUE NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
OVERNIGHT
 
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 20 KT. SEAS 3 TO 5 FT.    
SAT
 
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
MON
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
MON NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TUE
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TUE NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 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 LESS THAN 10 KT. SEAS 5 TO 6 FT.    
SAT NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 FT.    
SUN
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON
 
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
MON NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TUE
 
NE WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
TUE NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.  
 
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