936  
FZNT31 KNHC 050917  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
517 AM EDT SAT JUL 5 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. 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, WITH THE EXCEPTION OF MODERATE TO FRESH E WINDS IN  
THE GULF OF HONDURAS TONIGHT THROUGH WED NIGHT.  
 
NW CARIBBEAN W OF 85W  
   
TODAY  
SE WINDS LESS THAN 10 KT. SEAS 3 FT.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 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 4 TO 6 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.    
WED  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED 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 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 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 5 TO 7 FT S OF 18N, AND 3 FT  
ELSEWHERE.    
SUN NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT S OF 18N, AND  
3 TO 5 FT ELSEWHERE.    
MON  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
MON NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 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.    
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.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
TODAY  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT  
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 4 TO 6 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.    
WED  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
WED NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.  
 
SW CARIBBEAN S OF 11N  
   
TODAY  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
TONIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 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 SE LESS THAN  
10 KT IN THE AFTERNOON. SEAS 4 TO 6 FT.    
MON NIGHT  
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE  
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
TUE NIGHT  
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
WED  
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
TODAY  
GULF OF VENEZUELA, E WINDS 10 TO 20 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 4 TO 6 FT  
ELSEWHERE.    
TONIGHT  
NE WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 3 TO 4 FT GULF OF VENEZUELA, AND 4 TO 6 FT  
ELSEWHERE.    
SUN  
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO 20 KT  
ELSEWHERE. SEAS 4 TO 6 FT.    
SUN NIGHT  
E WINDS 20 TO 30 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. 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.    
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.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
TODAY  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TONIGHT  
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 4 TO 5 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.    
WED  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED 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  
NE 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.    
WED  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
TROPICAL DEPRESSION THREE IS NEAR 30.8N 78.6W AT  
5 AM EDT, AND IS MOVING NORTH-NORTHEAST AT 2 KT. MAXIMUM  
SUSTAINED WINDS ARE 30 KT WITH GUSTS TO 40 KT, AND THE MINIMUM  
CENTRAL PRESSURE IS 1010 MB. THREE WILL STRENGTHEN TO A TROPICAL  
STORM NEAR 31.5N 78.8W THIS AFTERNOON, MOVE TO 32.6N 79.2W SUN  
MORNING, INLAND TO 33.7N 79.4W SUN AFTERNOON, MOVE INLAND AND  
WEAKEN TO A TROPICAL DEPRESSION NEAR 34.8N 78.8W MON MORNING,  
INLAND TO 36.3N 77.1W MON AFTERNOON, AND DISSIPATE TUE MORNING.  
THE MAIN IMPACTS OF T.D. THREE WILL REMAIN NORTH OF THE FORECAST  
AREA. HIGH PRESSURE WILL PREVAIL ELSEWHERE. THIS PATTERN WILL  
SUPPORT GENERALLY GENTLE TO MODERATE WINDS EXCEPT FOR MODERATE TO  
FRESH WINDS OFF THE NORTHERN COAST OF HISPANIOLA THROUGH MON.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TODAY  
SW WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.    
TONIGHT  
S WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
SUN  
SW WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
SUN NIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT, SUBSIDING TO  
3 TO 5 FT AFTER MIDNIGHT.    
MON  
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON NIGHT  
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
TUE  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
SW WINDS 10 TO 15 KT. SEAS 3 FT.    
WED NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TODAY  
S WINDS 10 TO 20 KT. SEAS 7 TO 10 FT W OF 70W, AND 3 TO  
5 FT ELSEWHERE.    
TONIGHT  
S WINDS 10 TO 15 KT W OF 70W, AND SE LESS THAN 10 KT  
ELSEWHERE. SEAS 7 TO 10 FT W OF 70W, AND 3 TO 4 FT ELSEWHERE.    
SUN  
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 6 TO 9 FT W OF 70W, AND 3 TO 4 FT ELSEWHERE.   
SUN NIGHT  
SE WINDS LESS THAN 10 KT. W OF 70W, SEAS 6 TO 9 FT,  
SUBSIDING TO 3 TO 5 FT AFTER MIDNIGHT. ELSEWHERE, SEAS 3 FT.    
MON  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT  
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  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.  
 
BAHAMAS N OF 22N  
   
TODAY  
S WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
TONIGHT  
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN  
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.   
SUN NIGHT  
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
MON  
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
MON NIGHT  
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 FT.    
WED  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TODAY  
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TONIGHT  
SE WINDS 10 KT. SEAS 3 TO 5 FT.    
SUN  
SE WINDS 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
MON  
E WINDS 10 TO 15 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.    
WED  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 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 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 3 TO 5 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.    
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.  
 
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 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 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.    
WED  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab TPC Page
Main Text Page