142
FZNT31 KNHC 091521
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1021 AM EST TUE DEC 9 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
MODERATE TO LOCALLY FRESH E WINDS AND MODERATE SEAS
WILL PREVAIL OVER THE CENTRAL AND EASTERN CARIBBEAN TODAY.
WIDESPREAD FRESH TRADES AND ROUGH SEAS ARE EXPECTED TO DEVELOP
OVER THIS REGION ON WED AS A TIGHTENING PRESSURE GRADIENT
DEVELOPS BETWEEN THE COLOMBIAN LOW, A STALLING FRONT IN THE
NORTHWEST BASIN AND BUILDING HIGH PRESSURE IN THE CENTRAL
ATLANTIC. WINDS WILL PULSE TO STRONG SPEEDS OFFSHORE OF NORTHERN
COLOMBIA AND IN THE GULF OF VENEZUELA NIGHTLY THROUGH THIS
WEEKEND, AND WINDS MAY REACH NEAR-GALE FORCE AT TIMES. ELSEWHERE,
FRESH TO LOCALLY STRONG TRADES WILL PREVAIL OVER THE ATLANTIC
WATERS AND THROUGH THE PASSAGES INTO THIS WEEKEND. LOCALLY ROUGH
SEAS IN E SWELL IN THIS REGION WILL SUBSIDE THROUGH TODAY, WITH A
NEW E SWELL SUPPORTING ROUGH SEAS WED THROUGH THIS WEEKEND.
NW CARIBBEAN W OF 85W
TODAY
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TONIGHT
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
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 10 TO 15 KT, SHIFTING TO E AFTER MIDNIGHT.
SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT 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 E LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
TONIGHT
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 20 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
WED NIGHT
E WINDS 10 TO 20 KT S OF 18N, AND NE LESS THAN
10 KT ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 2 FT OR LESS
ELSEWHERE.
THU
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
E WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
TONIGHT
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 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND E 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 20 TO 30 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
THU
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
THU NIGHT
NE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
FRI
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
FRI NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SW CARIBBEAN S OF 11N
TODAY
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
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 8 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 6 TO 8 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 6 TO 8 FT.
SAT NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 15 TO 25 KT. SEAS 3 FT GULF OF VENEZUELA, AND 5
TO 7 FT ELSEWHERE.
TONIGHT
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 5 TO 7 FT.
WED
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
WED 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 6 TO 8 FT
ELSEWHERE.
THU
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 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 20 KT. 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 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 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.
SAT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT 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 8 FT.
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
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 9 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.
SAT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COLD FRONT EXTENDING FROM SOUTH OF BERMUDA THROUGH
THE CENTRAL BAHAMAS WILL PROGRESS EASTWARD THROUGH THE CENTRAL
ATLANTIC THIS WEEK. STRONG TO LOCALLY NEAR-GALE FORCE SW WINDS
AND ROUGH SEAS WILL OCCUR NORTH OF 27N AND EAST OF 65W AHEAD OF
THE COLD FRONT THROUGH LATE TONIGHT, WITH WIDESPREAD FRESH TO
STRONG W TO NW WINDS EXPECTED IN THE WAKE OF THE FRONT NORTH OF
29N AND EAST OF 70W. WINDS WILL SUBSIDE FROM WEST TO EAST TONIGHT
INTO EARLY WED. NW SWELL ASSOCIATED WITH THIS FRONT WILL EXPAND
SOUTHEASTWARD OVER THE NORTHWESTERN TROPICAL ATLANTIC THROUGH
WED, SUPPORTING ROUGH SEAS NORTH OF 26N BY LATE TONIGHT, AND
NORTH OF 25N BY WED AFTERNOON. VERY ROUGH SEAS OVER 12 FT WILL BE
POSSIBLE NORTH OF 30N AND EAST OF 70W TODAY INTO WED AFTERNOON.
SEAS WILL SLOWLY SUBSIDE FROM WEST TO EAST THROUGH LATE WEEK.
LOOKING AHEAD, FRESH TO STRONG SW WINDS AND ROUGH SEAS MAY
DEVELOP OFFSHORE NORTHERN FLORIDA BY WED EVENING, AHEAD OF A COLD
FRONT MOVING OVER THE SOUTHERN UNITED STATES. THE COLD FRONT IS
SLATED TO PUSH OFFSHORE EARLY THU, WITH FRESH NW WINDS AND ROUGH
SEAS EXPECTED IN THE WAKE OF THE FRONT.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TONIGHT
N WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
WED
NW WINDS LESS THAN 10 KT, SHIFTING TO SW 10 TO 20 KT IN
THE AFTERNOON. SEAS 6 TO 7 FT.
WED NIGHT
W WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
THU
NW WINDS 15 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
N WINDS 10 KT IN THE MORNING, BECOMING VARIABLE WINDS
LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT.
SAT
S WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
N WINDS 10 TO 20 KT W OF 70W, AND NW 15 TO 25 KT
ELSEWHERE. SEAS 7 TO 10 FT.
TONIGHT
W OF 70W, E WINDS LESS THAN 10 KT. ELSEWHERE, NE
WINDS 10 TO 15 KT, SHIFTING TO E AFTER MIDNIGHT. SEAS 8 TO
11 FT.
WED
SE WINDS LESS THAN 10 KT, SHIFTING TO S IN THE AFTERNOON.
SEAS 7 TO 10 FT.
WED NIGHT
SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU
W WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
NW WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI
N WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
FRI NIGHT
N WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER
MIDNIGHT. SEAS 5 TO 7 FT.
SAT
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
BAHAMAS N OF 22N
TODAY
N WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO
3 FT IN THE AFTERNOON.
TONIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
WED
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING W LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
THU
NW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
THU NIGHT
N WINDS LESS THAN 10 KT, SHIFTING TO NE AFTER
MIDNIGHT. SEAS 3 TO 4 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
W OF 70W, N WINDS 10 TO 15 KT. ELSEWHERE, SW WINDS
10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON.
SEAS 4 TO 6 FT.
TONIGHT
W OF 70W, E WINDS 10 TO 15 KT, SHIFTING TO SE AFTER
MIDNIGHT. ELSEWHERE, SE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
WED
S WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
SW WINDS LESS THAN 10 KT, SHIFTING TO N AFTER
MIDNIGHT. SEAS 5 TO 6 FT.
FRI
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 5 TO 6 FT.
FRI NIGHT
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.
ATLC WATERS S OF 22N W OF 65W
TODAY
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TONIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 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 LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. 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 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 5 TO 7 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
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 10 TO 20 KT. SEAS 6 TO 9 FT.
THU
SE 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.
SAT
E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT.
SAT NIGHT
E WINDS 20 KT. SEAS 8 TO 10 FT.
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