978
FZNT31 KNHC 151315
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
815 AM EST MON DEC 15 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 TRADE WINDS AND MODERATE SEAS WILL PREVAIL
OVER THE SOUTH CENTRAL CARIBBEAN THROUGH TUE AS ATLANTIC HIGH
PRESSURE REMAINS WELL NE OF THE REGION. ELSEWHERE, FRESH TO
LOCALLY STRONG TRADE WINDS AND ROUGH SEAS IN LARGE E SWELL WILL
PERSIST OVER THE TROPICAL ATLANTIC WATERS, THROUGH THE ATLANTIC
PASSAGES AND INTO THE EASTERN PART OF THE BASIN THROUGH TUE. A
COLD FRONT WILL ENTER THE NORTHWESTERN CARIBBEAN THIS EVENING,
ACCOMPANIED BY INCREASING WINDS AND BUILDING SEAS. THIS FRONT IS
EXPECTED TO REACH FROM CENTRAL CUBA TO N BELIZE TUE MORNING,
THEN WILL STALL AND GRADUALLY DISSIPATE THROUGH WED. HIGH
PRESSURE WILL BUILD INTO THE W ATLANTIC WED THROUGH FRI TO BRING
A RETURN TO FRESH TO STRONG TRADES ACROSS THE CENTRAL CARIBBEAN.
NW CARIBBEAN W OF 85W
TODAY
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT, SHIFTING TO E AFTER MIDNIGHT.
SEAS 4 TO 6 FT.
WED
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
NE 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.
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
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
E WINDS 10 TO 20 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 20 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 20 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND E 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
TUE NIGHT
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.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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 6 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 5 TO 7 FT.
TONIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NE WINDS 10 TO 15 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 5 TO 7 FT.
THU
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 6 TO 8 FT ELSEWHERE.
TONIGHT
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO
15 KT ELSEWHERE. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO
15 KT ELSEWHERE. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 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 5 TO 7 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TODAY
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
WED
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI 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
TODAY
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COLD FRONT EXTENDS FROM NEAR 31N63W TO THE FLORIDA
STRAITS. GALE- FORCE WINDS N OF 30N AND W OF THE FRONT WILL
DIMINISH TODAY. OTHERWISE, THE FRONT WILL BE FOLLOWED BY STRONG
TO NEAR GALE-FORCE NORTHERLY WINDS AND QUICKLY BUILDING SEAS
THROUGH THIS EVENING. THE FRONT WILL REACH FROM 31N57W TO THE
CENTRAL BAHAMAS AND THROUGH THE STRAITS OF FLORIDA BY THIS
EVENING, STALL FROM 30N55W TO THE SE BAHAMAS AND CENTRAL CUBA BY
TUE MORNING, THEN SLOWLY DISSIPATE THROUGH WED AFTERNOON. LARGE N
SWELL WILL BUILD ACROSS THE REGIONAL WATERS BEHIND THE FRONT
THROUGH TUE BEFORE SUBSIDING. THE BERMUDA HIGH WILL DOMINATE THE
REGIONAL WATERS THU THROUGH FRI.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
NE WINDS 15 TO 25 KT. SEAS 10 TO 14 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 8 TO 11 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
W WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
..GALE WARNING
TODAY
N WINDS 20 TO 30 KT, EXCEPT TO 35 KT N OF 29N BETWEEN
66W AND 70W EARLY. W OF 70W, SEAS 9 TO 14 FT, BUILDING TO 12 TO
15 FT IN THE AFTERNOON. ELSEWHERE, SEAS 9 TO 14 FT.
TONIGHT
NE WINDS 10 TO 15 KT W OF 70W, AND N 10 TO 20 KT
ELSEWHERE. SEAS 9 TO 14 FT W OF 70W, AND 11 TO 15 FT ELSEWHERE.
TUE
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT W OF 70W, AND 9 TO
13 FT ELSEWHERE.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
WED
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
THU
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
SE WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.
FRI
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
BAHAMAS N OF 22N
TODAY
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 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, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
NE WINDS 15 TO 25 KT W OF 70W, AND NW 10 TO 20 KT
ELSEWHERE. SEAS 7 TO 10 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 8 TO 13 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 9 TO 12 FT.
WED
E WINDS 10 TO 20 KT. SEAS 8 TO 10 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 9 FT.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
FRI
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 6 TO 8 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 6 TO 7 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
TUE
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
SE WINDS 10 TO 15 KT. SEAS 8 TO 10 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
WED
E WINDS 10 TO 15 KT. SEAS 9 TO 10 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 8 TO 10 FT.
THU
E WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.
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