856  
FZNT31 KNHC 110225  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1025 PM EDT THU APR 10 2025  
 
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
 
A STATIONARY FRONT FROM E CUBA TO HONDURAS WILL  
DISSIPATE TONIGHT. THE REMNANTS OF THE FRONT WILL STRENGTHEN  
WINDS OFF NICARAGUA FRI AND CONTINUE THROUGH THE WEEKEND BEFORE  
DIMINISHING ON MON. ELSEWHERE, MODERATE TO FRESH TRADES WILL  
PREVAIL IN THE SOUTH-CENTRAL CARIBBEAN INTO THE WEEKEND BEFORE  
STRENGTHENING EARLY NEXT WEEK.  
 
NW CARIBBEAN W OF 85W  
   
OVERNIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT
 
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT
 
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
TUE
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
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
 
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT
 
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT S OF 18N, AND 3 FT  
ELSEWHERE.    
SAT NIGHT
 
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN
 
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 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
 
NE WINDS 10 TO 20 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
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
WITHIN 90 NM OF COAST OF COLOMBIA, NE WINDS LESS  
THAN 10 KT, SHIFTING TO E AFTER MIDNIGHT. ELSEWHERE, NE WINDS  
10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT
 
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN
 
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TUE
 
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TUE NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.  
 
SW CARIBBEAN S OF 11N  
   
OVERNIGHT
 
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI
 
N WINDS 10 TO 15 KT, SHIFTING TO NW IN THE AFTERNOON.  
SEAS 3 TO 5 FT.    
FRI NIGHT
 
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT
 
NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN
 
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN NIGHT
 
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
MON
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TUE
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TUE NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
OVERNIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 FT GULF OF VENEZUELA, AND  
4 TO 6 FT ELSEWHERE.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS GULF OF VENEZUELA,  
AND 4 TO 5 FT ELSEWHERE.    
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.    
MON
 
E WINDS 10 TO 20 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 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 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 5 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 LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 4 TO 6 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.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
OVERNIGHT
 
E WINDS 10 TO 15 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 7 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 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 6 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 STATIONARY FRONT EXTENDS FROM JUST WEST OF BERMUDA  
TO E CUBA, WITH A WEAK 1014 MB LOW ALONG THE FRONT NEAR 28N74W.  
THE LOW WILL GRADUALLY WEAKEN THROUGH THE END OF THE WEEK. A  
COLD  
FRONT WILL MOVE OFF THE COAST OF FLORIDA LATE FRI. THE FRONT  
WILL PROGRESS ACROSS THE FORECAST WATERS, FOLLOWED BY FRESH TO  
STRONG W TO NW WINDS NORTH OF 29N SAT INTO MON. HIGH PRESSURE  
WILL BUILD IN THE WAKE OF THE FRONT BY EARLY NEXT WEEK.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
OVERNIGHT
 
NE WINDS 10 KT. SEAS 6 TO 8 FT.    
FRI
 
S WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE AFTERNOON.  
SEAS 4 TO 6 FT.    
FRI NIGHT
 
W WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.    
SAT
 
NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN
 
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
NW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
MON
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS THAN  
10 KT IN THE AFTERNOON. SEAS 4 TO 6 FT.    
MON NIGHT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE
 
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT
 
W WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
OVERNIGHT
 
W OF 70W, N WINDS 10 TO 15 KT, DIMINISHING TO LESS  
THAN 10 KT AFTER MIDNIGHT. ELSEWHERE, S WINDS 10 TO 15 KT. SEAS  
6 TO 8 FT.    
FRI
 
W OF 70W, N WINDS LESS THAN 10 KT IN THE MORNING,  
BECOMING VARIABLE WINDS LESS THAN 10 KT. ELSEWHERE, SW WINDS  
10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON.  
SEAS 4 TO 6 FT.    
FRI NIGHT
 
SW WINDS LESS THAN 10 KT, SHIFTING TO S AFTER  
MIDNIGHT. SEAS 4 TO 5 FT.    
SAT
 
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SUN
 
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
NW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
MON
 
NW WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
MON NIGHT
 
NW WINDS 10 TO 15 KT, SHIFTING TO W AFTER MIDNIGHT.  
SEAS 7 TO 10 FT.    
TUE
 
SW WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
 
BAHAMAS N OF 22N  
   
OVERNIGHT
 
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
NE WINDS LESS THAN 10 KT IN THE MORNING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT
 
NW WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
NW WINDS 10 TO 15 KT. SEAS 3 FT.    
SUN
 
N WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 FT.    
SUN NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 FT.    
MON
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
TUE NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
OVERNIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
FRI
 
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
VARIABLE WINDS LESS THAN 10 KT W OF 70W, AND SE  
LESS THAN 10 KT ELSEWHERE. SEAS 4 TO 5 FT.    
SAT
 
SW WINDS LESS THAN 10 KT W OF 70W, AND S 10 TO 15 KT  
ELSEWHERE. SEAS 3 TO 5 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SUN
 
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SUN NIGHT
 
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON
 
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TUE
 
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
TUE NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
FRI
 
E 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 4 FT.    
SAT NIGHT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN
 
SW WINDS LESS THAN 10 KT, SHIFTING TO NW IN THE  
AFTERNOON. SEAS 3 TO 5 FT.    
SUN NIGHT
 
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON NIGHT
 
NE 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.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
OVERNIGHT
 
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 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 5 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SUN
 
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SUN NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
MON
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
MON NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.   
TUE
 
E WINDS 10 KT. SEAS 4 TO 6 FT.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
 
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