625   
FZNT31 KNHC 212031  
OFFN20  
  
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
431 PM EDT FRI MAR 21 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 E TO NE WINDS OFFSHORE OF COLOMBIA  
AND VENEZUELA WILL PULSE TO GALE FORCE OFFSHORE OF COLOMBIA EACH  
NIGHT AND EARLY MORNING THROUGH EARLY NEXT WEEK. FRESH TO  
OCCASIONALLY STRONG NE WINDS WILL PULSE IN THE WINDWARD PASSAGE  
INTO EARLY NEXT WEEK. FRESH TO STRONG SE WINDS WILL DEVELOP  
ACROSS THE GULF OF HONDURAS FROM SUN NIGHT INTO THE MIDDLE OF  
NEXT WEEK.   
  
NW CARIBBEAN W OF 85W  
   
TONIGHT  
NE WINDS 10 TO 15 KT, SHIFTING TO E AFTER MIDNIGHT.  
SEAS 4 TO 6 FT.    
SAT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE  
AFTERNOON. 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 5 FT.    
SUN NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
MON  
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TUE  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.   
  
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
TONIGHT  
S OF 18N, NE WINDS 10 TO 20 KT. ELSEWHERE, NE WINDS  
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS  
3 TO 5 FT.    
SAT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT S OF 18N, AND 3 TO  
4 FT ELSEWHERE.    
SAT NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT S OF 18N, AND  
3 TO 5 FT ELSEWHERE.    
SUN  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT S OF 18N, AND 3 TO  
5 FT ELSEWHERE.    
SUN NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
MON NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TUE  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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  
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.   
  
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
..GALE WARNING TONIGHT AND SAT NIGHT  
   
..GALE CONDITIONS POSSIBLE SUN NIGHT AND MON NIGHT  
  
   
TONIGHT  
NE TO E WINDS 25 TO 35 KT. SEAS 7 TO 10 FT IN E SWELL.   
SAT  
NE TO E WINDS 25 TO 30 KT S OF 13N, AND E 20 TO 25 KT N OF  
13N. SEAS 7 TO 11 FT.    
SAT NIGHT  
NE TO E WINDS 25 TO 35 KT S OF 13N, AND NE TO E  
25 TO 30 KT N OF 13N. SEAS 9 TO 13 FT.    
SUN  
NE TO E WINDS 25 TO 35 KT. SEAS 9 TO 14 FT.    
SUN NIGHT  
NE TO E WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.    
MON  
E WINDS 25 TO 30 KT. SEAS 9 TO 13 FT.    
MON NIGHT  
NE TO E WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.    
TUE  
E WINDS 20 TO 25 KT. SEAS 8 TO 12 FT.    
TUE NIGHT  
E WINDS 20 TO 25 KT. SEAS 7 TO 11 FT.    
WED  
NE TO E WINDS 20 TO 25 KT. SEAS 7 TO 11 FT.    
WED NIGHT  
NE TO E WINDS 20 TO 25 KT. SEAS 6 TO 9 FT.  
  
SW CARIBBEAN S OF 11N  
   
TONIGHT  
N WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
SAT  
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
SAT NIGHT  
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
SUN  
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.    
SUN NIGHT  
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.    
MON  
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.    
MON NIGHT  
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
TUE  
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
TUE NIGHT  
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
WED  
N WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
WED NIGHT  
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.   
  
CARIBBEAN BETWEEN 64W AND 72W  
   
TONIGHT  
NE WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO  
20 KT ELSEWHERE. SEAS 5 TO 7 FT.    
SAT  
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.    
SAT NIGHT  
E WINDS 25 TO 30 KT GULF OF VENEZUELA, AND E 15 TO  
25 KT ELSEWHERE. SEAS 6 TO 8 FT.    
SUN  
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO 20 KT  
ELSEWHERE. SEAS 4 TO 6 FT GULF OF VENEZUELA, AND 6 TO 9 FT  
ELSEWHERE.    
SUN NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
MON  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
MON NIGHT  
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.    
TUE  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TUE NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
WED 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  
   
TONIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 5 TO 7 FT.    
SAT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 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 6 TO 8 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  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
WED NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.   
  
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
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 6 TO 8 FT.    
SUN  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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  
E 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.   
  
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
A COLD FRONT EXTENDING FROM 31N69W TO NORTHEAST CUBA  
WILL REACH FROM BERMUDA TO CENTRAL CUBA THIS EVENING. THE   
NORTHERN PORTION OF THE FRONT WILL REACH FROM 31N55W TO 26N65W   
EARLY SAT, WITH THE SOUTHERN PORTION STALLING AND STARTING TO   
DISSIPATE THROUGH CENTRAL CUBA. FRESH TO STRONG NW WINDS WILL   
FOLLOW THE FRONT NORTH OF 25N THROUGH TONIGHT, THEN DIMINISH.   
ROUGH TO VERY ROUGH SEAS WILL ALSO FOLLOW THE FRONT AND SUBSIDE  
TO MODERATE SEAS BY LATE SAT. THE NORTHERN PORTION OF THE FRONT  
WILL SHIFT EAST OF 55W BY LATE SAT, FOLLOWED BY HIGH PRESSURE  
BUILDING OVER THE WESTERN ATLANTIC ALONG 30N. THIS PATTERN WILL  
SUPPORT GENTLE BREEZES AND SLIGHT TO MODERATE SEAS NORTH OF 22N  
INTO EARLY NEXT WEEK. LOOKING AHEAD, THE HIGH PRESSURE WILL  
SHIFT EASTWARD MON AHEAD OF A WEAK COLD FRONT MOVING OFF THE   
NORTHEAST FLORIDA COAST. FRESH TO STRONG WINDS MAY PULSE OFF THE   
NORTHERN COAST OF HISPANIOLA LATE SUN THROUGH TUE.   
  
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TONIGHT  
N WINDS 10 TO 15 KT IN THE EVENING, BECOMING VARIABLE  
WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.    
SAT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS THAN  
10 KT IN THE AFTERNOON. SEAS 4 TO 6 FT.    
SAT NIGHT  
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN  
NE WINDS LESS THAN 10 KT, SHIFTING TO SE IN THE  
AFTERNOON. SEAS 3 FT.    
SUN NIGHT  
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING  
TO 3 FT AFTER MIDNIGHT.    
MON  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
MON NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE  
W WINDS 10 TO 15 KT, SHIFTING TO NW IN THE AFTERNOON.  
SEAS 3 TO 4 FT.    
TUE NIGHT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
WED  
W WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED NIGHT  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
  
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TONIGHT  
NW WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
SAT  
W OF 70W, NE WINDS LESS THAN 10 KT, SHIFTING TO S IN THE  
AFTERNOON. ELSEWHERE, N WINDS 10 TO 15 KT IN THE MORNING,  
BECOMING VARIABLE WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.    
SAT NIGHT  
W WINDS LESS THAN 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
SUN  
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
MON  
SE WINDS 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE  
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
WED  
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.   
  
BAHAMAS N OF 22N  
   
TONIGHT  
N WINDS 10 TO 15 KT, SHIFTING TO NE AFTER MIDNIGHT.  
SEAS 3 TO 5 FT.    
SAT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE  
AFTERNOON. SEAS 3 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 FT.    
MON  
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
MON NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
TUE  
SE WINDS 10 TO 15 KT, SHIFTING TO E IN THE AFTERNOON.  
SEAS 3 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
WED NIGHT  
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.   
  
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TONIGHT  
NW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
SAT  
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
SAT NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
SUN  
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
SUN NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
MON  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON NIGHT  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE NIGHT  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED  
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.   
  
ATLC WATERS S OF 22N W OF 65W  
   
TONIGHT  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.   
SAT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN  
E WINDS 10 TO 15 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 20 KT. SEAS 5 TO 7 FT.    
TUE  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TUE NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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.   
  
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
TONIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.    
SAT  
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
SAT NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. 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.    
MON  
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
MON NIGHT  
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.    
TUE  
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.    
TUE NIGHT  
E WINDS 15 TO 20 KT. SEAS 7 TO 9 FT.    
WED  
E WINDS 15 TO 20 KT. SEAS 7 TO 9 FT.    
WED NIGHT  
E WINDS 15 TO 20 KT. SEAS 7 TO 9 FT.   
 
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