660  
FZNT31 KNHC 041516  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1116 AM EDT FRI JUL 4 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 WILL CONTINUE TO SUPPORT PULSING FRESH TO  
STRONG TRADES AND ROUGH SEAS ACROSS THE SOUTH-CENTRAL CARIBBEAN  
THROUGH THE FORECAST PERIOD. GENTLE TO MODERATE WINDS AND SLIGHT  
TO MODERATE SEAS WILL PREVAIL ELSEWHERE, WITH THE EXCEPTION OF  
MODERATE TO FRESH E WINDS IN THE GULF OF HONDURAS BEGINNING ON  
SAT NIGHT.  
 
NW CARIBBEAN W OF 85W  
   
THIS AFTERNOON  
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
TONIGHT  
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT  
SE WINDS LESS THAN 10 KT. SEAS 3 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  
E WINDS 10 TO 20 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 5 TO 7 FT.    
TUE  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT S OF 18N, AND SE LESS THAN  
10 KT ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.    
TONIGHT  
E WINDS 10 TO 20 KT S OF 18N, AND SE LESS THAN 10 KT  
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.    
SAT  
E WINDS 10 TO 20 KT S OF 18N, AND SE LESS THAN 10 KT  
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.    
SAT NIGHT  
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.    
SUN  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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 15 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 FROM 11N TO 15N W OF 72W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SAT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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 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 8 FT.  
 
SW CARIBBEAN S OF 11N  
   
THIS AFTERNOON  
NE WINDS LESS THAN 10 KT, SHIFTING TO SW IN  
THE AFTERNOON. SEAS 4 TO 5 FT.    
TONIGHT  
NW WINDS LESS THAN 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS THAN  
10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT.    
SAT NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON  
VARIABLE WINDS LESS THAN 10 KT, BECOMING NE LESS THAN  
10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT.    
MON NIGHT  
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE  
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TUE NIGHT  
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF  
VENEZUELA, AND 5 TO 7 FT ELSEWHERE.    
SAT  
GULF OF VENEZUELA, E WINDS 10 TO 15 KT, DIMINISHING TO  
LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE, E WINDS 10 TO  
20 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA, AND 5 TO 7 FT  
ELSEWHERE.    
SAT NIGHT  
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 3 TO 5 FT GULF OF VENEZUELA, AND 5 TO 7 FT  
ELSEWHERE.    
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 5 TO 7 FT.    
TUE NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TONIGHT  
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 5 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON  
E WINDS 10 TO 20 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.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TONIGHT  
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 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 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 3 TO 5 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
NUMEROUS SHOWERS AND THUNDERSTORMS PERSIST EAST OF  
NORTHEAST FLORIDA WHERE LOW PRESSURE CONTINUES TO BECOME  
SLIGHTLY  
BETTER ORGANIZED. ENVIRONMENTAL CONDITIONS ARE FORECAST TO BE  
MARGINALLY CONDUCIVE FOR FURTHER DEVELOPMENT, AND THERE IS A  
MEDIUM CHANCE A SHORT- LIVED TROPICAL OR SUBTROPICAL DEPRESSION  
COULD FORM LATE TODAY OR ON SATURDAY WHILE THE SYSTEM DRIFTS  
NORTHWARD. THIS LOW IS EXPECTED TO MOVE INLAND OVER THE  
SOUTHEASTERN U.S. SAT NIGHT OR EARLY SUN. AT A MINIMUM, THIS  
PATTERN WILL SUPPORT FRESH TO OCCASIONALLY STRONG S WINDS AND  
BUILDING SEAS NORTH OF 29N AND WEST OF 75W. HIGH PRESSURE WILL  
PREVAIL ELSEWHERE. FARTHER SOUTH, FRESH WINDS WILL PULSE OFF THE  
NORTH COAST OF HISPANIOLA STARTING SAT NIGHT, BECOMING FRESH TO  
STRONG WINDS BY MON NIGHT.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
THIS AFTERNOON  
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TONIGHT  
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT  
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT  
S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN  
SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
MON  
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON NIGHT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE NIGHT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
THIS AFTERNOON  
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
TONIGHT  
W OF 70W, S WINDS LESS THAN 10 KT, SHIFTING TO SE  
AFTER MIDNIGHT. ELSEWHERE, SE WINDS LESS THAN 10 KT. SEAS 3 TO  
5 FT.    
SAT  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT  
SE WINDS 10 TO 15 KT W OF 70W, AND VARIABLE LESS  
THAN 10 KT ELSEWHERE. SEAS 4 TO 6 FT.    
SUN  
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 6 FT.    
SUN NIGHT  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
MON  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
TUE  
S WINDS 10 KT. SEAS 3 TO 4 FT.    
TUE NIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
BAHAMAS N OF 22N  
   
THIS AFTERNOON  
S WINDS 10 TO 15 KT. SEAS 3 FT, SUBSIDING TO  
2 FT OR LESS.    
TONIGHT  
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 2 FT OR LESS.    
SAT  
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 FT IN THE MORNING, SUBSIDING TO 2 FT OR  
LESS.    
SAT NIGHT  
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 2 FT OR LESS.    
SUN  
SE WINDS LESS THAN 10 KT. SEAS 3 FT.    
SUN NIGHT  
E WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER  
MIDNIGHT. SEAS 2 FT OR LESS, BUILDING TO 3 FT AFTER MIDNIGHT.    
MON  
SE WINDS 10 TO 15 KT. SEAS 3 FT IN THE MORNING, SUBSIDING  
TO 2 FT OR LESS.    
MON NIGHT  
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO  
3 FT AFTER MIDNIGHT.    
TUE  
E WINDS 10 TO 15 KT. SEAS 3 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
THIS AFTERNOON  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TONIGHT  
SE WINDS 10 KT. SEAS 3 TO 4 FT.    
SAT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
MON  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
THIS AFTERNOON  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TONIGHT  
E WINDS 10 TO 15 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 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.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SAT  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 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 5 FT.    
MON  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
MON NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
TUE  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.  
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