005
FZNT31 KNHC 240323
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1023 PM EST TUE DEC 23 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
STRONG HIGH PRESSURE ACROSS THE WESTERN ATLANTIC
COMBINED WITH THE COLOMBIAN LOW WILL CONTINUE TO SUPPORT FRESH
TO STRONG WINDS IN THE LEE OF CUBA, THE WINDWARD PASSAGE, AND
THE CENTRAL CARIBBEAN THROUGH THU NIGHT, EXCEPT THROUGH SUN
NIGHT OFF COLOMBIA. OTHERWISE, LONG PERIOD NORTHERLY SWELL WILL
REACH THE NE CARIBBEAN AND THE WATERS JUST E OF THE LEEWARD
ISLANDS, INCLUDING THE ATLANTIC PASSAGES, BY WED MORNING AND
GRADUALLY SUBSIDE LATE THU INTO FRI. ADDITIONAL PULSES OF
NORTHERLY SWELL WILL REACH THE SAME REGION LATE FRI INTO SAT.
NW CARIBBEAN W OF 85W
TONIGHT
E WINDS 10 TO 20 KT. 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
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE 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 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 5 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TONIGHT
E WINDS 10 TO 20 KT S OF 18N, AND NE 15 TO 25 KT
ELSEWHERE. SEAS 5 TO 7 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS 10 TO 20 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 4 TO 6 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TONIGHT
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
WED
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
WED 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.
THU
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI NIGHT
NE 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 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 6 TO 8 FT.
SW CARIBBEAN S OF 11N
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU
NE WINDS 10 TO 20 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. SEAS 6 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 10 TO 15 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. SEAS 6 TO 8 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
CARIBBEAN BETWEEN 64W AND 72W
TONIGHT
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 3 TO 5 FT GULF OF VENEZUELA, AND 5 TO 7 FT
ELSEWHERE.
WED
NE WINDS 10 TO 15 KT. SEAS 3 FT GULF OF VENEZUELA, AND
4 TO 6 FT ELSEWHERE.
WED NIGHT
NE WINDS 10 TO 20 KT GULF OF VENEZUELA, AND NE
10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 3 FT GULF OF VENEZUELA, AND
5 TO 7 FT ELSEWHERE.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE 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 20 KT. SEAS 4 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.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
NE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
WED NIGHT
NE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
THU
NE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN NIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. 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, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 5 TO 7 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
THE TAIL OF A WEAKENING COLD FRONT EXTENDING FROM
23N55W TO 21N61W WILL GRADUALLY DISSIPATE OVER THE SE WATERS
TONIGHT INTO WED. STRONG WINDS FOLLOWING THE FRONT AND AFFECTING
THE SE OFFSHORE WATERS E OF 65W WILL DIMINISH AND MOVE E OF THE
AREA LATE TONIGHT INTO EARLY WED. HOWEVER, ROUGH TO VERY ROUGH
SEAS E OF THE BAHAMAS WILL GRADUALLY SUBSIDE THROUGH THU.
ANOTHER COLD FRONT WILL REACH THE NORTHERN WATERS LATE ON WED,
EXTEND FROM 31N55W TO THE NW BAHAMAS BY THU MORNING AND EXIT THE
REGION THU NIGHT. STRONG TO NEAR GALE FORCE WINDS, AND ROUGH TO
VERY ROUGH SEAS ARE ALSO EXPECTED AHEAD AND BEHIND THE FRONT,
AFFECTING MAINLY THE NORTH-CENTRAL AND NE OFFSHORE WATERS. A
THIRD COLD FRONT WILL MOVE ACROSS THE NORTHERN OFFSHORE WATERS
FRI MORNING AND EXIT THE NE OFFSHORE WATERS LATE SAT. ROUGH TO
VERY ROUGH SEAS WILL FOLLOW.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
SE WINDS LESS THAN 10 KT, SHIFTING TO NW AFTER
MIDNIGHT. SEAS 6 TO 8 FT.
WED
NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU
NW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU NIGHT
NW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI
NW WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
FRI NIGHT
W WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
SAT
W WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT NIGHT
NW WINDS 10 KT. SEAS 4 TO 6 FT.
SUN
W WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TONIGHT
W OF 70W, SE WINDS LESS THAN 10 KT, SHIFTING TO W
AFTER MIDNIGHT. ELSEWHERE, SE WINDS 10 TO 15 KT. SEAS 7 TO
10 FT.
WED
NW WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
WED NIGHT
N WINDS 10 TO 20 KT W OF 70W, AND NW 15 TO 25 KT
ELSEWHERE. W OF 70W, SEAS 6 TO 9 FT. ELSEWHERE, SEAS 7 TO 10 FT,
BUILDING TO 8 TO 13 FT AFTER MIDNIGHT.
THU
W OF 70W, NE WINDS 10 TO 15 KT, SHIFTING TO E IN THE
AFTERNOON. ELSEWHERE, N WINDS 10 TO 20 KT. SEAS 6 TO 9 FT W OF
70W, AND 10 TO 15 FT ELSEWHERE.
THU NIGHT
NW WINDS LESS THAN 10 KT, SHIFTING TO W AFTER
MIDNIGHT. SEAS 8 TO 11 FT.
FRI
NW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
FRI NIGHT
W WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
SAT
W WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
SAT NIGHT
NW WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN
N WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT, SHIFTING TO W AFTER
MIDNIGHT. SEAS 6 TO 8 FT.
BAHAMAS N OF 22N
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN
NE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN NIGHT
NE WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 8 TO 11 FT.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
THU
N WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
THU NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 7 TO 10 FT.
FRI
N WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
FRI NIGHT
N WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT
NW WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT NIGHT
NW WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SUN
NW WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN NIGHT
N WINDS 10 KT IN THE EVENING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
ATLC WATERS S OF 22N W OF 65W
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT.
SAT
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 8 TO 12 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 8 TO 11 FT.
THU
N WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.
THU NIGHT
N WINDS 10 TO 15 KT, SHIFTING TO NE AFTER MIDNIGHT.
SEAS 6 TO 7 FT.
FRI
N WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 8 TO 10 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 7 TO 9 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 7 FT.
SUN
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SUN NIGHT
N WINDS 10 KT IN THE EVENING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
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