803  
FZNT31 KNHC 070823  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
423 AM EDT MON JUL 7 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. FRESH TO STRONG E WINDS ARE  
EXPECTED IN THE GULF OF HONDURAS, MAINLY AT NIGHT, THROUGH THE  
FORECAST PERIOD. MODERATE TO FRESH WINDS AND MODERATE SEAS ARE  
EXPECTED IN THE EASTERN CARIBBEAN, WHILE GENTLE TO MODERATE  
WINDS AND SLIGHT TO MODERATE SEAS WILL PREVAIL ELSEWHERE.  
 
NW CARIBBEAN W OF 85W  
   
TODAY  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TUE  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 3 FT.    
THU NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 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.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
TODAY  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TONIGHT  
S OF 18N, E WINDS 10 TO 15 KT. ELSEWHERE, E WINDS  
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS  
3 TO 5 FT.    
TUE  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE NIGHT  
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS  
10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT AFTER MIDNIGHT. SEAS  
4 TO 6 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. 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 20 KT. SEAS 4 TO 6 FT.    
FRI NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
TODAY  
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,  
AND E 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.    
TUE  
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,  
AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.    
TUE NIGHT  
NE WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
WED NIGHT  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
THU  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
FRI  
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.    
FRI NIGHT  
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.  
 
SW CARIBBEAN S OF 11N  
   
TODAY  
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
TONIGHT  
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TUE NIGHT  
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
WED  
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
WED NIGHT  
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
THU  
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU NIGHT  
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
FRI  
E WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE AFTERNOON.  
SEAS 4 TO 6 FT.    
FRI NIGHT  
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
TODAY  
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO  
15 KT ELSEWHERE. SEAS 3 TO 5 FT.    
TONIGHT  
NE WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 4 TO 6 FT.    
TUE  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TUE NIGHT  
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 5 TO 7 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
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 6 TO 8 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
TODAY  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TONIGHT  
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.    
WED  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 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. SEAS 4 TO 6 FT.    
TONIGHT  
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 5 FT.    
WED  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
WED NIGHT  
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 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 15 KT. SEAS 5 TO 7 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
MODERATE TO FRESH SOUTHERLY WINDS AND MODERATE SEAS  
WILL PREVAIL OVER THE WESTERN ATLANTIC THROUGH TODAY, AS THE  
REMNANTS OF T.D. CHANTAL CONTINUE MOVING INLAND AWAY FROM THE  
AREA. THE ATLANTIC RIDGE WILL CONTINUE TO BUILD WESTWARD TOWARD  
FLORIDA AND THE BAHAMAS THROUGH THE WEEK. THIS PATTERN WILL  
SUPPORT GENTLE TO MODERATE WINDS, EXCEPT FOR FRESH TO STRONG E  
TO SE WINDS OFF THE NORTHERN COAST OF HISPANIOLA THROUGH FRI  
NIGHT.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TODAY  
SW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 5 FT.    
TONIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
TUE  
S WINDS LESS THAN 10 KT. SEAS 3 FT.    
TUE NIGHT  
SE WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.   
THU  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
THU NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TODAY  
SE WINDS LESS THAN 10 KT W OF 70W, AND SE 10 TO 15 KT  
ELSEWHERE. SEAS 3 TO 4 FT.    
TONIGHT  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
TUE  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
BAHAMAS N OF 22N  
   
TODAY  
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
TUE  
E WINDS 10 TO 15 KT. SEAS 3 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
THU  
SE WINDS 10 TO 20 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 4 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TODAY  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED  
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU  
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
THU NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
TODAY  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TONIGHT  
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 5 TO 7 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
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 6 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.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
TODAY  
E WINDS 15 TO 20 KT. SEAS 5 TO 6 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TUE  
E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.    
TUE NIGHT  
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
THU NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 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.  
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