440  
FZNT31 KNHC 300258  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1058 PM EDT TUE APR 29 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  
HIGH PRESSURE NORTH OF THE BASIN COMBINED WITH THE  
COLOMBIAN LOW WILL SUPPORT PULSING FRESH TO STRONG TRADES AT  
NIGHT OVER THE WINDWARD PASSAGE AND SOUTH OF CUBA THROUGH THU  
NIGHT. ELSEWHERE, TRANQUIL CONDITIONS SHOULD PREVAIL OVER THE  
FORECAST WATERS THROUGH THE WEEKEND.  
 
NW CARIBBEAN W OF 85W  
   
OVERNIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E 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 N OF 15N BETWEEN 72W AND 85W  
   
OVERNIGHT  
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. 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 5 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 4 FT.    
SAT NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
E WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
OVERNIGHT  
NE WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.    
WED  
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
WED NIGHT  
NE WINDS 10 TO 15 KT. SEAS 4 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 5 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E 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 LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
SW CARIBBEAN S OF 11N  
   
OVERNIGHT  
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED  
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.   
WED NIGHT  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT.   
SUN  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT.   
SUN NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
OVERNIGHT  
NE WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO  
15 KT ELSEWHERE. SEAS 3 TO 4 FT.    
WED  
GULF OF VENEZUELA, E WINDS 10 TO 15 KT. ELSEWHERE, E  
WINDS 10 TO 15 KT. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND 3 TO  
5 FT ELSEWHERE.    
WED NIGHT  
E WINDS 10 TO 15 KT. 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 5 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E 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.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
OVERNIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
WED  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
WED NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 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  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 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.    
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 3 TO 5 FT.    
SAT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 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 3 TO 5 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
A STATIONARY FRONT EXTENDS FROM 31N55W TO 25N66W,  
THEN DISSIPATING TO THE CENTRAL BAHAMAS. THE REMAINDER OF THE  
FRONT NORTH OF 25N WILL GRADUALLY WEAKEN THROUGH THU AND  
DISSIPATE AFTERWARD. HIGH PRESSURE BEHIND THE FRONT WILL SHIFT  
EASTWARD THROUGH FRI. FRESH NORTHEAST TO EAST WINDS CURRENTLY  
BEHIND THE FRONT SHOULD CONTINUE THROUGH THU, THEN TO THE SOUTH  
OF 28N WEST OF 55W THROUGH LATE THU BEFORE DIMINISHING TO GENTLE  
TO MODERATE SPEEDS FOR THE REST OF THE FORECAST PERIOD. REMNANTS  
OF THE FRONT THAT SHOULD DEVELOP INTO A TROUGH NORTHEAST OF THE  
LEEWARD ISLANDS WILL FORCE FRESH NORTHEAST WINDS NORTH OF 27N  
AND EAST OF 65W FROM FRI MORNING INTO THE WEEKEND. LOOKING  
AHEAD, A WEAK COLD FRONT MAY EMERGE OFF THE U.S. SOUTHEASTERN  
COAST LATE SAT NIGHT INTO SUN.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
OVERNIGHT  
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 5 FT.    
THU  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.   
SUN NIGHT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING E 10 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
OVERNIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
WED  
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
WED NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 LESS THAN 10 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  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN NIGHT  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
BAHAMAS N OF 22N  
   
OVERNIGHT  
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
WED  
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
WED NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E 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 TO SE 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 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
OVERNIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
WED  
NE WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.    
WED NIGHT  
NE WINDS 10 TO 20 KT. SEAS 7 FT.    
THU  
NE WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 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.  
 
ATLC WATERS S OF 22N W OF 65W  
   
OVERNIGHT  
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
WED  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
THU  
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT  
E WINDS 10 TO 20 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 3 TO 5 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
OVERNIGHT  
E WINDS 10 KT. SEAS 4 TO 5 FT.    
WED  
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
WED NIGHT  
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU  
NE WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.    
THU NIGHT  
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
FRI  
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
FRI NIGHT  
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
SAT  
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.   
SAT NIGHT  
E WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.    
SUN  
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
SUN NIGHT  
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.  
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