063
FZNT31 KNHC 120910
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
410 AM EST FRI DEC 12 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
WIDESPREAD FRESH TRADE WINDS ARE EXPECTED OVER THE
CENTRAL AND EASTERN CARIBBEAN THROUGH SUN MORNING AS A MODERATE
PRESSURE GRADIENT PREVAILS BETWEEN THE COLOMBIAN LOW AND
MIGRATING HIGH PRESSURE TO THE NORTH ALONG 29N. STRONG E WINDS
WILL PULSE TO NEAR GALE-FORCE AT NIGHT OFFSHORE OF NORTHERN
COLOMBIA. ELSEWHERE, FRESH TO LOCALLY STRONG TRADE WINDS AND
ROUGH SEAS IN LARGE E SWELL WILL PREVAIL OVER THE ATLANTIC
WATERS AND THROUGH THE PASSAGES AND INTO THE EASTERN BASIN
THROUGH MON. LOOKING AHEAD, A COLD FRONT WILL ENTER THE
NORTHWESTERN CARIBBEAN EARLY MON, ACCOMPANIED BY INCREASING
WINDS AND BUILDING SEAS BEHIND THE FRONT. THIS FRONT IS EXPECTED
TO REACH FROM CENTRAL CUBA TO N BELIZE TUE EVENING THEN BEGIN TO
STALL AND WEAKEN.
NW CARIBBEAN W OF 85W
TODAY
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. 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, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
SUN
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT S OF 18N, AND 4 TO
6 FT ELSEWHERE.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT S OF 18N, AND 4 TO
6 FT ELSEWHERE.
SAT NIGHT
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS
10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT AFTER MIDNIGHT. SEAS
6 TO 9 FT S OF 18N, AND 4 TO 6 FT ELSEWHERE.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
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
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND E 15 TO 25 KT ELSEWHERE. SEAS 7 TO 10 FT.
TONIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 15 TO 25 KT ELSEWHERE. SEAS 7 TO 9 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
SAT NIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 15 TO 25 KT ELSEWHERE. SEAS 7 TO 10 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN
E WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON. SEAS
6 TO 9 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
MON
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
MON NIGHT
N WINDS 10 TO 15 KT. 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.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 5 TO 7 FT.
TONIGHT
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 8 FT
ELSEWHERE.
SAT
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 6 TO 9 FT
ELSEWHERE.
SAT NIGHT
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
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 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 20 KT. SEAS 7 TO 10 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
MON
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 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 20 KT. SEAS 7 TO 10 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
MON
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COMPLEX STORM SYSTEM CENTERED OVER THE CANADIAN
MARITIMES EXTENDS TWO COLD FRONTS ACROSS THE NORTHWESTERN
TROPICAL ATLANTIC WATERS AND THROUGH THE CENTRAL BAHAMAS. THESE
COLD FRONTS WILL PROGRESS EASTWARD AND MERGE, EXTENDING FROM
NEAR 31N58W TO THE SE BAHAMAS FRI EVENING. STRONG SW WINDS WILL
OCCUR AHEAD OF THE LEADING FRONT, GENERALLY NORTH OF 28N AND EAST
OF 60W, INTO FRI AFTERNOON. ROUGH SEAS IN SW SWELL WILL PREVAIL
AHEAD OF THE LEADING FRONT WITH A BRIEF PERIOD OF LARGE NW SWELL
EXPECTED NORTH OF 27N BEHIND THE FRONTS THROUGH SAT MORNING.
ELSEWHERE IN THE CENTRAL ATLANTIC, ROUGH SEAS IN MIXED N AND SE
SWELL WILL PREVAIL E OF 65W THROUGH FRI MORNING, WITH A NEW MIXED
SWELL REINFORCING ROUGH SEAS THERE SUN THROUGH MON. THE NEXT
COLD FRONT IS SLATED TO MOVE OFF THE COAST OF THE SOUTHEASTERN
UNITED STATES ON SUN, WITH INCREASING WINDS AND QUICKLY BUILDING
SEAS EXPECTED BEHIND THE FRONT. THE FRONT IS EXPECTED TO REACH
FROM JUST E OF BERMUDA TO THE CENTRAL BAHAMAS BY MON MORNING,
THEN WEAKEN AS IT REACHES FROM 29N55W TO THE SE BAHAMAS AND
CENTRAL CUBA TUE MORNING.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
N WINDS LESS THAN 10 KT IN THE MORNING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
W WINDS LESS THAN 10 KT, BECOMING NW 10 TO 20 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT.
SUN NIGHT
N WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
MON
NE WINDS 15 TO 25 KT. SEAS 11 TO 13 FT.
MON NIGHT
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 5 TO 7 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
W OF 70W, NW WINDS 10 KT IN THE MORNING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. ELSEWHERE, NW WINDS 10 TO 15 KT.
SEAS 6 TO 9 FT.
TONIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT W OF 70W,
AND 7 TO 9 FT ELSEWHERE.
SAT
E WINDS LESS THAN 10 KT W OF 70W, AND E 10 TO 15 KT
ELSEWHERE. SEAS 5 TO 7 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN
S WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE AFTERNOON.
SEAS 5 TO 7 FT.
SUN NIGHT
W WINDS 10 TO 20 KT, BECOMING NW 20 TO 30 KT AFTER
MIDNIGHT. SEAS 6 TO 8 FT, BUILDING TO 8 TO 11 FT AFTER MIDNIGHT.
MON
N WINDS 20 TO 30 KT. SEAS 10 TO 15 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 11 TO 16 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 8 TO 13 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
BAHAMAS N OF 22N
TODAY
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
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
SE WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 3 TO 4 FT.
SUN NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON
NE WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
W OF 70W, NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO
15 KT IN THE AFTERNOON. ELSEWHERE, E WINDS LESS THAN 10 KT. SEAS
5 TO 7 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
MON
N WINDS 15 TO 25 KT. SEAS 6 TO 8 FT, BUILDING TO 8 TO
11 FT IN THE AFTERNOON.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 8 TO 13 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 9 TO 13 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 9 TO 12 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN
SE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN NIGHT
E WINDS 10 TO 15 KT, SHIFTING TO SE AFTER MIDNIGHT.
SEAS 5 TO 7 FT.
MON
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE
E WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT
E WINDS 15 TO 20 KT. SEAS 8 TO 11 FT.
SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 9 TO 11 FT.
SUN
E WINDS 15 TO 20 KT. SEAS 9 TO 11 FT.
SUN NIGHT
SE WINDS 10 TO 20 KT. SEAS 9 TO 10 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 8 TO 10 FT.
MON NIGHT
E WINDS LESS THAN 10 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page