134  
FZNT31 KNHC 121523  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1023 AM EST THU DEC 12 2024  
 
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  
STRONG HIGH PRESSURE OVER THE GULF OF MEXICO IN THE  
WAKE OF A COLD FRONT EXTENDING ACROSS THE CENTRAL BAHAMAS TO  
CENTRAL CUBA AND INTO HONDURAS WILL CONTINUE TO SUPPORT FRESH TO  
STRONG NE WINDS AND MODERATE TO ROUGH SEAS IN THE NW CARIBBEAN  
AND THE WINDWARD PASSAGE THROUGH SUN MORNING. AFTERWARD,  
MODERATE TO FRESH NE WINDS WILL FURTHER DIMINISH TO GENTLE TO  
MODERATE SPEEDS BY MON AFTERNOON AS THE BROAD HIGH PRESSURE  
SHIFT NE AND THEN EASTWARD TO THE NORTH-CENTRAL ATLANTIC WATERS.  
THE HIGH PRESSURE WILL ALSO SUPPORT FRESH TO STRONG NE WINDS  
OVER THE CENTRAL AND SW CARIBBEAN THROUGH SAT MORNING. MODERATE  
TO FRESH NE WINDS OVER THE E CARIBBEAN WILL DIMINISH ON FRI AS A  
SURFACE TROUGH ENTERS THE REGION. OTHERWISE, THE FRONT WILL  
STALL THIS MORNING OVER THE NW CARIBBEAN BEFORE DISSIPATING  
TONIGHT.  
 
NW CARIBBEAN W OF 85W  
   
TODAY  
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.    
TONIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
FRI  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
FRI NIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SAT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SAT NIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN NIGHT  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON NIGHT  
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN  
10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
TODAY  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
NE WINDS 10 TO 20 KT S OF 18N, AND NE 15 TO 25 KT  
ELSEWHERE. SEAS 5 TO 7 FT.    
FRI  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI NIGHT  
NE WINDS 10 TO 20 KT S OF 18N, AND NE 15 TO 25 KT  
ELSEWHERE. SEAS 6 TO 8 FT.    
SAT  
NE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.    
SAT NIGHT  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN  
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN NIGHT  
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
MON  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
MON NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
TODAY  
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,  
AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.    
TONIGHT  
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.    
FRI  
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,  
AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.    
FRI NIGHT  
NE WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.    
SAT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SAT NIGHT  
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN  
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 6 FT.    
SUN NIGHT  
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN  
10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
MON  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT  
NE WINDS 10 TO 15 KT. SEAS 3 FT.  
 
SW CARIBBEAN S OF 11N  
   
TODAY  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TONIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
FRI  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
FRI NIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SAT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SAT NIGHT  
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN  
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.  
SEAS 4 TO 6 FT.    
SUN NIGHT  
N WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
MON  
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
MON NIGHT  
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
TODAY  
NE WINDS 10 TO 20 KT. SEAS 3 FT GULF OF VENEZUELA, AND  
4 TO 6 FT ELSEWHERE.    
TONIGHT  
NE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF  
VENEZUELA, AND 5 TO 7 FT ELSEWHERE.    
FRI  
NE WINDS 10 TO 20 KT. SEAS 3 FT GULF OF VENEZUELA, AND  
5 TO 7 FT ELSEWHERE.    
FRI NIGHT  
NE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF  
VENEZUELA, AND 4 TO 6 FT ELSEWHERE.    
SAT  
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 6 FT.    
SAT NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN  
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
SUN NIGHT  
E WINDS 10 TO 15 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 5 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
TODAY  
NE WINDS 10 TO 15 KT, SHIFTING TO NW IN THE AFTERNOON.  
SEAS 5 TO 7 FT.    
TONIGHT  
NW WINDS LESS THAN 10 KT, SHIFTING TO SW AFTER  
MIDNIGHT. SEAS 4 TO 6 FT.    
FRI  
S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
FRI NIGHT  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT  
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SAT NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON 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 LESS THAN 10 KT. SEAS 3 TO 5 FT.    
TONIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 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.    
MON  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON NIGHT  
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
A COLD FRONT EXTENDING FROM 31N71W TO THE CENTRAL  
BAHAMAS AND INTO CENTRAL CUBA WILL STALL FROM 31N68W TO THE  
EASTERN BAHAMAS THIS EVENING AND DISSIPATE TONIGHT INTO EARLY  
FRI. FRESH TO STRONG NORTHERLY WINDS AND ROUGH SEAS AFFECTING  
THE FLORIDA OFFSHORE WATERS, AND THE NORTHERN AND CENTRAL  
BAHAMAS WILL PREVAIL AND EXPAND IN AREAL COVERAGE THROUGH THE  
WEEKEND AS STRONG HIGH PRESSURE BUILDING IN THE WAKE OF THE FRONT  
WILL TIGHTEN THE PRESSURE GRADIENT AGAINST AN APPROACHING  
SURFACE TROUGH FROM THE EAST. FREQUENT GUST TO GALE FORCE WINDS  
MAY DEVELOP OVER THE NORTHERN BAHAMAS OFFSHORE WATERS SAT THROUGH  
SUN. WINDS WILL START TO GRADUALLY WEAKEN ACROSS THE REGION SUN  
NIGHT INTO MON.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TODAY  
N WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
TONIGHT  
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.    
FRI  
NE WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.    
FRI NIGHT  
E WINDS 15 TO 25 KT. SEAS 8 TO 12 FT.    
SAT  
NE WINDS 20 TO 30 KT. SEAS 11 TO 15 FT.    
SAT NIGHT  
E WINDS 20 TO 30 KT. SEAS 13 TO 16 FT.   
SUN  
NE WINDS 15 TO 25 KT. SEAS 13 TO 16 FT.    
SUN NIGHT  
E WINDS 15 TO 25 KT. SEAS 12 TO 15 FT.    
MON  
E WINDS 15 TO 25 KT. SEAS 11 TO 14 FT.    
MON NIGHT  
E WINDS 10 TO 20 KT. SEAS 10 TO 12 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TODAY  
N WINDS 15 TO 25 KT W OF 70W, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 6 TO 9 FT W OF 70W, AND 5 TO 6 FT ELSEWHERE.    
TONIGHT  
NE WINDS 15 TO 25 KT W OF 70W, AND NE 10 TO 20 KT  
ELSEWHERE. SEAS 8 TO 11 FT W OF 70W, AND 6 TO 9 FT ELSEWHERE.    
FRI  
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
FRI NIGHT  
NE WINDS 20 TO 30 KT. SEAS 10 TO 14 FT.    
SAT  
NE WINDS 20 TO 30 KT. SEAS 13 TO 17 FT.    
SAT NIGHT  
NE WINDS 20 TO 30 KT. SEAS 14 TO 18 FT.    
SUN  
NE WINDS 20 TO 30 KT. SEAS 14 TO 17 FT.    
SUN NIGHT  
NE WINDS 20 TO 25 KT. SEAS 13 TO 16 FT.    
MON  
E WINDS 15 TO 25 KT. SEAS 12 TO 15 FT.    
MON NIGHT  
E WINDS 15 TO 20 KT. SEAS 10 TO 13 FT.  
 
BAHAMAS N OF 22N  
   
TODAY  
NE WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.    
TONIGHT  
NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.    
FRI  
NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.    
FRI NIGHT  
NE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.    
SAT  
NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.    
SAT NIGHT  
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
SUN  
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
SUN NIGHT  
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
MON  
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
MON NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TODAY  
W OF 70W, E WINDS LESS THAN 10 KT, SHIFTING TO NE IN  
THE AFTERNOON. ELSEWHERE, NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.    
FRI  
NE WINDS 15 TO 25 KT. SEAS 8 TO 12 FT.    
FRI NIGHT  
NE WINDS 20 TO 25 KT. SEAS 10 TO 14 FT.    
SAT  
NE WINDS 20 TO 30 KT. SEAS 11 TO 16 FT.    
SAT NIGHT  
E WINDS 20 TO 30 KT. SEAS 12 TO 17 FT.   
SUN  
E WINDS 15 TO 25 KT. SEAS 11 TO 16 FT.    
SUN NIGHT  
E WINDS 15 TO 25 KT. SEAS 10 TO 15 FT.    
MON  
E WINDS 15 TO 25 KT. SEAS 9 TO 14 FT.    
MON NIGHT  
E WINDS 15 TO 25 KT. SEAS 9 TO 12 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
TODAY  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
FRI  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
FRI NIGHT  
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
SAT  
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.    
SAT NIGHT  
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
SUN  
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
MON  
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
MON NIGHT  
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
TODAY  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TONIGHT  
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
FRI  
SE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.    
FRI NIGHT  
SE WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.    
SAT  
SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
SAT NIGHT  
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
SUN  
E WINDS 10 TO 20 KT. SEAS 8 TO 9 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT. SEAS 8 FT.    
MON  
E WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
MON NIGHT  
E WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.  
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