353  
FZNT31 KNHC 030809  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
409 AM EDT WED SEP 3 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
 
THE SUBTROPICAL RIDGE CENTERED OVER THE CENTRAL  
ATLANTIC COMBINED WITH LOWER PRESSURES IN NORTHERN COLOMBIA WILL  
SUSTAIN MODERATE TO FRESH EASTERLY TRADE WINDS ALONG WITH MODERATE  
SEAS ACROSS MUCH OF THE CENTRAL CARIBBEAN THROUGH SAT. FRESH TO  
LOCALLY STRONG WINDS ARE EXPECTED TO PULSE AT NIGHT OFF COLOMBIA  
AND THE GULF OF VENEZUELA THROUGH FRI NIGHT. IN ADDITION, MODERATE  
TO LOCALLY FRESH E WINDS AND SLIGHT TO MODERATE SEAS WILL PREVAIL  
IN THE GULF OF HONDURAS THROUGH SAT.  
 
NW CARIBBEAN W OF 85W  
   
TODAY
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
TONIGHT
 
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
THU
 
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 FT.    
THU NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
FRI
 
SE 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 10 TO 15 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 3 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
TODAY
 
S OF 18N, E WINDS LESS THAN 10 KT, INCREASING TO 10 TO  
15 KT IN THE AFTERNOON. ELSEWHERE, VARIABLE WINDS LESS THAN  
10 KT. SEAS 3 FT.    
TONIGHT
 
S OF 18N, E WINDS LESS THAN 10 KT, INCREASING TO  
10 TO 15 KT AFTER MIDNIGHT. ELSEWHERE, VARIABLE WINDS LESS THAN  
10 KT, BECOMING SE LESS THAN 10 KT AFTER MIDNIGHT. SEAS 3 FT.    
THU
 
E WINDS 10 TO 15 KT S OF 18N, AND SE LESS THAN 10 KT  
ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
THU NIGHT
 
S OF 18N, E WINDS 10 TO 15 KT. ELSEWHERE, VARIABLE  
WINDS LESS THAN 10 KT, BECOMING E LESS THAN 10 KT AFTER  
MIDNIGHT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 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.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 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.    
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 20 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 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 4 FT.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
SW CARIBBEAN S OF 11N  
   
TODAY
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
TONIGHT
 
N WINDS LESS THAN 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU
 
NE WINDS LESS THAN 10 KT, SHIFTING TO S IN THE AFTERNOON.  
SEAS 3 TO 4 FT.    
THU NIGHT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING NW LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
FRI
 
NW WINDS LESS THAN 10 KT, SHIFTING TO S IN THE AFTERNOON.  
SEAS 3 TO 4 FT.    
FRI NIGHT
 
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
SAT
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN
 
SW WINDS LESS THAN 10 KT IN THE MORNING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 3 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.    
THU
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
FRI
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SAT
 
E WINDS 10 TO 20 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  
   
TODAY
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TONIGHT
 
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 4 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 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 4 TO 6 FT.    
SUN 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, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 5 FT.    
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 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 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.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS
 
A NEARLY STATIONARY FRONT WILL PERSIST FROM THE NW  
ATLANTIC TO THE NW BAHAMAS AND SOUTH FLORIDA THROUGH AT LEAST  
FRI. THE PRESSURE GRADIENT BETWEEN THE ATLANTIC RIDGE AND THE  
FRONT SUPPORTS FRESH TO LOCALLY STRONG SOUTHERLY WINDS NORTH OF  
25N AND BETWEEN 70W AND 75W. THESE WINDS WILL PERSIST THROUGH  
LATE TODAY. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS E OF  
THE FRONT ARE AFFECTING THE BAHAMAS, THE STRAITS OF FLORIDA AND  
CUBA. UNSETTLED WEATHER CONDITIONS WILL CONTINUE AHEAD OF THE FRONT  
OVER THE NEXT FEW DAYS. STRONGER WINDS AND HIGHER SEAS ARE LIKELY  
NEAR THE STRONGEST STORMS. ELSEWHERE, THE ATLANTIC RIDGE WILL  
CONTINUE TO DOMINATE THE WEATHER PATTERN ACROSS THE FORECAST WATERS,  
SUPPORTING GENTLE TO MODERATE WINDS AND MOSTLY MODERATE SEAS.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TODAY
 
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TONIGHT
 
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 4 TO 6 FT.    
THU
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI
 
NE WINDS LESS THAN 10 KT. SEAS 3 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT.   
SAT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS THAN  
10 KT IN THE AFTERNOON. SEAS 3 FT.    
SAT NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT.    
SUN
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT.    
SUN NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TODAY
 
SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TONIGHT
 
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
THU
 
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 4 TO 5 FT.    
FRI
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
BAHAMAS N OF 22N  
   
TODAY
 
SW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 2 FT OR LESS.    
TONIGHT
 
W WINDS LESS THAN 10 KT, SHIFTING TO SW AFTER  
MIDNIGHT. SEAS 2 FT OR LESS.    
THU
 
SW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 2 FT OR LESS.    
THU NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
FRI
 
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI NIGHT
 
SW WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER  
MIDNIGHT. SEAS 2 FT OR LESS.    
SAT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TODAY
 
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TONIGHT
 
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 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 4 FT.    
FRI
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
SAT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
TODAY
 
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
TONIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
THU
 
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 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 10 TO 15 KT. SEAS 3 TO 4 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  
   
TODAY
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
TONIGHT
 
E WINDS 10 KT. SEAS 4 TO 5 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 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 5 TO 6 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.  
 
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