939
FZNT31 KNHC 080933
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
433 AM EST MON DEC 8 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
WEAK RIDGING NORTH OF THE BASIN NEAR 25N WILL
SUPPORT MODERATE TO FRESH TRADE WINDS AND MODERATE SEAS EAST OF
ABOUT 84W THROUGH THE PERIOD, EXCEPT TRADES WILL INCREASE TO
FRESH TO STRONG SPEEDS ACROSS THE CENTRAL CARIBBEAN AND THE
EASTERN PART OF THE SOUTHWESTERN CARIBBEAN STARTING LATE TUE
NIGHT AS HIGH PRESSURE THAT BUILDS OVER THE GULF OF AMERICA
LEADS TO A TIGHTENING OF THE GRADIENT, AND WHILE AT THE SAME
TIME A WEAKENING COLD FRONT APPROACHES THE NORTHWESTERN
CARIBBEAN ON TUE STALLS FROM NEAR WESTERN CUBA TO THE YUCATAN
PENINSULA THROUGH WED NIGHT BEFORE DISSIPATING. MODERATE OR
LIGHTER WINDS AND SLIGHT TO MODERATE SEAS WILL PREVAIL W OF 84W.
OTHERWISE, LONG- PERIOD NORTHEAST TO EAST SWELL WILL SUPPORT
ROUGH SEAS ACROSS THE ATLANTIC WATERS AND PASSAGES OF THE LESSER
ANTILLES THROUGH FRI NIGHT.
NW CARIBBEAN W OF 85W
TODAY
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
TUE
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
WED NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI 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 15 KT S OF 18N, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 5 FT.
TONIGHT
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. S OF 18N, SEAS 3 TO 5 FT. ELSEWHERE, SEAS 3 TO 4 FT
IN THE EVENING, SUBSIDING TO 2 FT OR LESS.
TUE
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
TUE NIGHT
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
WED
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SW CARIBBEAN S OF 11N
TODAY
E WINDS LESS THAN 10 KT, SHIFTING TO N IN THE
AFTERNOON. SEAS 4 TO 6 FT.
TONIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 6 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 10 TO 20 KT. SEAS 3 FT GULF OF VENEZUELA, AND
5 TO 6 FT ELSEWHERE.
TONIGHT
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO
15 KT ELSEWHERE. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 FT GULF OF VENEZUELA, AND
4 TO 6 FT ELSEWHERE.
TUE NIGHT
E WINDS 15 TO 25 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
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 6 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 6 TO 8 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
TUE
E WINDS 10 TO 15 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
E WINDS 10 TO 20 KT. SEAS 6 TO 9 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 7 TO 10 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TODAY
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TONIGHT
E WINDS 10 TO 20 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 8 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A WEAK COLD FRONT EXTENDS FROM NEAR 31N73W TO
29N78W, THEN BECOMES A WARM FRONT TO A 1012 MB LOW NEAR 28N80W.
FRESH TO LOCALLY STRONG SOUTHWEST WINDS AND MODERATE TO ROUGH
SEAS ARE EAST OF THE FRONT TO NEAR 70W FROM 26N TO 30N. THESE
CONDITIONS WILL GRADUALLY SHIFT EASTWARD THROUGH LATE TUE AND
EXPAND IN COVERAGE AS A STRONGER COLD FRONT OVERTAKES THE WEAK
COLD FRONT. THE SOUTHWEST WINDS ARE EXPECTED TO REACH NEAR GALE
FORCE. THE COLD FRONT WILL REACH FROM NEAR BERMUDA TO THE NW
BAHAMAS AND STRAITS OF FLORIDA TUE AFTERNOON, THEN GRADUALLY
WEAKEN AND STALL ALONG ABOUT 26N EARLY WED AS LOW PRESSURE NORTH
OF THE FORECAST WATERS MOVES NORTHEASTWARD WELL TO THE NORTHEAST
OF THE AREA. A WEAKENING COLD FRONT IS EXPECTED TO MOVE ACROSS
THE WATERS NORTH AND NORTHEAST OF THE BAHAMAS FROM LATE WED
THROUGH FRI. OTHERWISE, LARGE NORTH SWELL WILL MOVE INTO THE
REGIONAL WATERS TUE THROUGH WED, THEN SUBSIDE OVER THE SE ZONES
FRI.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TONIGHT
N WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE NIGHT
NE WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
WED
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
WED NIGHT
W WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
NW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
W WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
W WINDS 10 TO 20 KT W OF 70W, AND SW 15 TO 25 KT
ELSEWHERE. SEAS 6 TO 8 FT.
TONIGHT
NW WINDS 15 TO 25 KT W OF 70W, AND SW 10 TO 20 KT
ELSEWHERE. SEAS 6 TO 9 FT.
TUE
N WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
TUE NIGHT
W OF 70W, E WINDS LESS THAN 10 KT. ELSEWHERE, N
WINDS 10 TO 15 KT, SHIFTING TO NE AFTER MIDNIGHT. SEAS 8 TO
11 FT.
WED
S WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
W WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT.
BAHAMAS N OF 22N
TODAY
SW WINDS 10 TO 15 KT. SEAS 3 FT.
TONIGHT
W WINDS LESS THAN 10 KT, SHIFTING TO NW AFTER
MIDNIGHT. SEAS 3 FT.
TUE
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT, SHIFTING TO E AFTER MIDNIGHT.
SEAS 3 TO 5 FT.
WED
SE WINDS LESS THAN 10 KT IN THE MORNING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU
VARIABLE WINDS LESS THAN 10 KT, BECOMING N LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
W OF 70W, NE WINDS 10 TO 15 KT, SHIFTING TO E LATE.
ELSEWHERE, SE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
WED
SE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
S TO SW WINDS 10 TO 15 KT, SHIFTING TO SW IN THE
AFTERNOON. SEAS 6 TO 8 FT.
THU NIGHT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
E TO SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 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 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT.
THU
E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 10 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 8 TO 10 FT.
FRI NIGHT
E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT.
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