292  
FZNT31 KNHC 100304  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1104 PM EDT TUE SEP 9 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 PRESSURE GRADIENT BETWEEN THE ATLANTIC RIDGE AND  
THE COLOMBIAN LOW LEAD TO FRESH TO LOCALLY STRONG WINDS IN THE  
SOUTH CENTRAL CARIBBEAN THROUGH FRIDAY, ALONG WITH MODERATE TO  
LOCALLY ROUGH SEAS. ELSEWHERE, MAINLY MODERATE WINDS WITH SLIGHT  
TO MODERATE SEAS WILL PREVAIL.  
 
NW CARIBBEAN W OF 85W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
THU
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
FRI
 
E WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE  
WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING, SUBSIDING TO  
2 FT OR LESS.    
FRI NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS,  
BUILDING TO 3 FT AFTER MIDNIGHT.    
SAT
 
E WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
SAT NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS,  
BUILDING TO 3 FT AFTER MIDNIGHT.    
SUN
 
E WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO  
3 TO 4 FT AFTER MIDNIGHT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
WED
 
S OF 18N, E WINDS 10 TO 15 KT. ELSEWHERE, E WINDS LESS  
THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE AFTERNOON. SEAS  
4 TO 6 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
WED NIGHT
 
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
THU
 
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 4 TO 6 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
 
E WINDS LESS THAN 10 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 FT.    
SUN
 
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
OVERNIGHT
 
E WINDS 15 TO 20 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 3 TO 5 FT.    
WED
 
E 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 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 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 LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.  
 
SW CARIBBEAN S OF 11N  
   
OVERNIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED
 
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS, BUILDING TO  
3 TO 4 FT IN THE AFTERNOON.    
WED NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
NW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
FRI
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.    
SUN NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
OVERNIGHT
 
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 4 TO 6 FT.    
WED NIGHT
 
NE WINDS 15 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 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 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 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.    
WED
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 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 LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
SAT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. 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.  
 
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 3 TO 5 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
SAT
 
E WINDS LESS THAN 10 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 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS
 
A STATIONARY FRONT JUST OFFSHORE NE FLORIDA WILL  
TRANSITION TO A COLD FRONT WED NIGHT AND MOVE SE, REACHING A  
LINE FROM W OF BERMUDA TO NEAR WEST PALM BEACH, FLORIDA, BY  
FRIDAY, BEFORE DISSIPATING. THE FRONT WILL BRINGING SHOWERS AND  
THUNDERSTORMS TO WATERS NEAR FLORIDA AND THE NORTHWEST BAHAMAS  
THROUGH THE WEEK. N OF THE FRONT, FRESH TO LOCALLY STRONG NE  
WINDS AND MODERATE TO ROUGH SEAS ARE EXPECTED THROUGH WED.  
MODERATE TO FRESH SOUTH WINDS AHEAD OF THE FRONT WILL DIMINISH  
WED. ELSEWHERE, THE ATLANTIC RIDGE WILL CONTINUE TO DOMINATE THE  
WEATHER PATTERN ACROSS THE FORECAST REGION THIS WEEK, PRODUCING A  
GENTLE TO MODERATE ANTICYCLONIC FLOW AND MOSTLY MODERATE SEAS.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
OVERNIGHT
 
S WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
WED
 
NW WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
WED NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU
 
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
FRI
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT
 
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN
 
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
OVERNIGHT
 
SW WINDS LESS THAN 10 KT W OF 70W, AND S 10 TO  
15 KT ELSEWHERE. SEAS 4 TO 6 FT.    
WED
 
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
THU
 
SW WINDS LESS THAN 10 KT. SEAS 4 FT.    
THU NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN
 
SW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
SUN NIGHT
 
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 4 TO 6 FT.  
 
BAHAMAS N OF 22N  
   
OVERNIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
THU
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI
 
SE WINDS LESS THAN 10 KT IN THE MORNING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
OVERNIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
WED
 
SE WINDS 10 KT. SEAS 4 TO 5 FT.    
WED NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
THU
 
W OF 70W, SE WINDS 10 KT IN THE MORNING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. ELSEWHERE, SE WINDS 10 KT. SEAS  
4 FT.    
THU NIGHT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS  
THAN 10 KT AFTER MIDNIGHT. 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 FT.    
SAT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.    
SAT NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED NIGHT
 
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
THU
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
FRI
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT.    
SUN NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
OVERNIGHT
 
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 4 TO 5 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
THU NIGHT
 
E WINDS 10 KT. SEAS 4 TO 5 FT.    
FRI
 
E WINDS 10 KT. SEAS 4 FT.    
FRI NIGHT
 
E WINDS 10 KT. SEAS 3 TO 4 FT.    
SAT
 
SE WINDS 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
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