795  
FZNT31 KNHC 161457  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1057 AM EDT WED JUL 16 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  
FRESH TO STRONG TRADE WINDS AND ROUGH SEAS WILL  
OCCUR OVER THE CENTRAL CARIBBEAN, INCLUDING THROUGH THE WINDWARD  
PASSAGE, THROUGH THU AS A TIGHT PRESSURE GRADIENT PREVAILS  
BETWEEN HIGH PRESSURE IN THE CENTRAL ATLANTIC AND LOW PRESSURE  
OVER NORTHERN COLOMBIA. STRONG E WINDS AND ROUGH TO LOCALLY VERY  
ROUGH SEAS WILL CONTINUE AND EXPAND INTO THE WEST-CENTRAL BASIN  
THU NIGHT THROUGH SAT MORNING AS THE PRESSURE GRADIENT  
STRENGTHENS FURTHER. PERIODS OF NEAR-GALE FORCE WINDS WILL BE  
POSSIBLE OFFSHORE OF NORTHERN COLOMBIA AND IN THE GULF OF  
VENEZUELA EACH NIGHT AND EARLY MORNING INTO SAT. WINDS AND SEAS  
WILL DIMINISH SLIGHTLY SAT INTO EARLY NEXT WEEK. ELSEWHERE,  
PULSING MODERATE TO FRESH E TO NE WINDS ARE EXPECTED IN THE GULF  
OF HONDURAS EACH AFTERNOON AND EVENING INTO THIS WEEKEND.  
OTHERWISE, MODERATE TO FRESH TRADE WINDS AND MODERATE SEAS WILL  
OCCUR IN THE EASTERN BASIN INTO NEXT WEEK.  
 
NW CARIBBEAN W OF 85W  
   
THIS AFTERNOON  
E WINDS LESS THAN 10 KT. SEAS 3 FT, SUBSIDING  
TO 2 FT OR LESS.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 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 4 TO 5 FT.    
SAT  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
SAT NIGHT  
NE WINDS 10 TO 15 KT. SEAS 4 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 5 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN  
10 KT ELSEWHERE. SEAS 4 TO 6 FT.    
TONIGHT  
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 5 TO 7 FT S OF 18N, AND 3 TO 4 FT ELSEWHERE.    
THU  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
THU NIGHT  
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS  
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS  
6 TO 8 FT S OF 18N, AND 3 TO 5 FT ELSEWHERE.    
FRI  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
FRI NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SAT NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 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.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
THIS AFTERNOON  
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 10 FT.    
TONIGHT  
E WINDS 20 TO 30 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 15 TO 25 KT ELSEWHERE. SEAS 8 TO 12 FT WITHIN  
90 NM OF COAST OF COLOMBIA, AND 6 TO 9 FT ELSEWHERE.    
THU  
E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.    
THU NIGHT  
E WINDS 20 TO 30 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND E 15 TO 25 KT ELSEWHERE. SEAS 8 TO 12 FT.    
FRI  
E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.    
FRI NIGHT  
E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.    
SAT  
E WINDS 15 TO 25 KT. SEAS 8 TO 12 FT.    
SAT NIGHT  
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
SUN  
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.    
SUN NIGHT  
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.  
 
SW CARIBBEAN S OF 11N  
   
THIS AFTERNOON  
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
TONIGHT  
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
THU  
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
THU NIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
FRI  
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 6 TO 9 FT.    
FRI NIGHT  
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
SAT  
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
SAT NIGHT  
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
SUN  
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
SUN NIGHT  
NE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
THIS AFTERNOON  
E WINDS 15 TO 25 KT. SEAS 5 TO 8 FT.    
TONIGHT  
E WINDS 20 TO 30 KT GULF OF VENEZUELA, AND E 10 TO 20  
KT ELSEWHERE. SEAS 6 TO 9 FT.    
THU  
GULF OF VENEZUELA, E WINDS 20 TO 30 KT, DIMINISHING TO 10  
TO 20 KT IN THE AFTERNOON. ELSEWHERE, E WINDS 10 TO 20 KT. SEAS  
3 TO 5 FT GULF OF VENEZUELA, AND 6 TO 9 FT ELSEWHERE.    
THU NIGHT  
E WINDS 20 TO 30 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 7 TO 10 FT.    
FRI  
E WINDS 20 TO 25 KT. SEAS 7 TO 10 FT.    
FRI NIGHT  
E WINDS 20 TO 25 KT. SEAS 6 TO 9 FT.    
SAT  
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.    
SAT NIGHT  
E WINDS 20 TO 25 KT. SEAS 5 TO 8 FT.    
SUN  
E WINDS 15 TO 25 KT. SEAS 5 TO 8 FT.    
SUN NIGHT  
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI  
E WINDS 10 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 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 5 TO 7 FT.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
THU  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 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 5 TO 7 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
MODERATE TO LOCALLY FRESH E TO SE WINDS ARE EXPECTED  
NORTH OF THE GREATER ANTILLES TO 27N AND OFF THE COAST OF  
FLORIDA WEST OF 75W THROUGH THU AS A STRONG PRESSURE GRADIENT  
PREVAILS BETWEEN HIGH PRESSURE IN THE CENTRAL ATLANTIC AND LOW  
PRESSURE OVER NORTHERN COLOMBIA. OCCASIONAL STRONG WINDS AND  
ROUGH SEAS ARE EXPECTED OFF THE COAST OF NORTHERN HISPANIOLA THIS  
AFTERNOON INTO EARLY SAT. WINDS WILL DIMINISH OFF THE COAST OF  
FLORIDA BY EARLY FRI, AND NORTH OF THE GREATER ANTILLES AND OVER  
THE BAHAMAS BY SAT MORNING. SOUTH OF 20N, MODERATE TO  
OCCASIONALLY FRESH TRADE WINDS AND MODERATE SEAS WILL OCCUR  
THROUGH THIS WEEKEND.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
THIS AFTERNOON  
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
TONIGHT  
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
THU  
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
THU NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
FRI  
S WINDS 10 KT. SEAS 4 FT.    
FRI NIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT  
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN  
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
THIS AFTERNOON  
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
TONIGHT  
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.   
THU  
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
THU NIGHT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT.    
FRI  
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI NIGHT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT.    
SAT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 FT.    
SAT NIGHT  
VARIABLE 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.  
 
BAHAMAS N OF 22N  
   
THIS AFTERNOON  
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
THU  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI  
E WINDS 10 TO 20 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 4 FT.    
SUN  
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 FT.    
SUN 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 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT  
E WINDS 10 KT. SEAS 4 TO 5 FT.    
SAT NIGHT  
E WINDS 10 KT. SEAS 4 TO 5 FT.    
SUN  
SE WINDS 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
SE WINDS 10 KT. SEAS 3 TO 4 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 5 TO 7 FT.    
FRI NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 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  
   
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.    
THU  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU NIGHT  
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 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.  
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