818
FZNT31 KNHC 250237
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
937 PM EST MON NOV 24 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
THE PRESSURE GRADIENT BETWEEN A RIDGE NORTH OF THE
ISLANDS AND LOWER PRESSURES IN NW COLOMBIA WILL SUSTAIN FRESH TO
STRONG TRADE WINDS AND ROUGH SEAS IN THE CENTRAL CARIBBEAN
THROUGH LATE THIS WEEK. THE STRONGEST WINDS OF 25 TO 30 KT, AND
HIGHEST SEAS OF 10 TO 13 FT ARE EXPECTED OFFSHORE COLOMBIA
MAINLY AT NIGHT. IN THE REMAINDER OF THE BASIN, THE WEATHER
PATTERN WILL SUPPORT MODERATE TO FRESH WINDS ALONG WITH MODERATE
SEAS THROUGH THE PERIOD. LOOKING AHEAD, A COLD FRONT WILL ENTER
THE NW CARIBBEAN ON FRI, FOLLOWED BY STRONG WINDS AND ROUGH
SEAS.
NW CARIBBEAN W OF 85W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 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.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WED NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT.
THU
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI NIGHT
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
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TONIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT S OF 18N, AND 4 TO
6 FT ELSEWHERE.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT S OF 18N, AND
4 TO 6 FT ELSEWHERE.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT S OF 18N, AND 5 TO
7 FT ELSEWHERE.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 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. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TONIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 10 TO 20 KT ELSEWHERE. SEAS 7 TO 10 FT.
TUE
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.
TUE NIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND E 15 TO 25 KT ELSEWHERE. SEAS 8 TO 11 FT.
WED
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND E 15 TO 25 KT ELSEWHERE. SEAS 8 TO 11 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.
THU
NE WINDS 15 TO 20 KT. SEAS 8 TO 11 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SW CARIBBEAN S OF 11N
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TUE NIGHT
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 8 TO 11 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 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
N WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
CARIBBEAN BETWEEN 64W AND 72W
TONIGHT
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 6 TO 8 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT GULF OF VENEZUELA,
AND 6 TO 8 FT ELSEWHERE.
TUE NIGHT
E WINDS 20 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.
WED
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT GULF OF VENEZUELA,
AND 6 TO 9 FT ELSEWHERE.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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.
SAT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 6 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 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 20 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 5 TO 6 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A WEAK COLD FRONT EXTENDS FROM 31N60W TO NEAR CAPE
CANAVERAL, FLORIDA. THE EASTERN PORTION OF THE FRONT WILL
CONTINUE EASTWARD AND REACH FROM 31N52W TO 27N63W BY TUE
MORNING, WHILE THE PORTION WEST OF 70W STARTS TO LIFT NORTH.
HIGH PRESSURE LOCATED OFF THE CAROLINAS WILL SHIFT EASTWARD
FOLLOWING THE FRONT, SUPPORTING MODERATE TO FRESH NORTHEAST TO
EAST WINDS AND MODERATE SEAS OVER THE REGION. LOOKING AHEAD,
WINDS AND SEAS WILL DIMINISH WEST OF 70W BY WED, AHEAD OF A
STRONGER COLD FRONT EXPECTED TO MOVE OFF THE NORTHEAST FLORIDA
COAST WED NIGHT. THE FRONT WILL REACH FROM BERMUDA TO THE STRAITS
OF FLORIDA BY EARLY FRI, FOLLOWED BY FRESH TO STRONG NW WINDS
AND BUILDING SEAS THROUGH FRI NIGHT. LOOKING AHEAD, A TIGHTENED
PRESSURE GRADIENT IN THE WAKE OF THE FRONT IS FORECAST TO BRING
INCREASING WINDS AND BUILDING SEAS ACROSS MUCH OF THE FORECAST
AREA DURING THE UPCOMING WEEKEND.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
NW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU NIGHT
NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
N WINDS 15 TO 20 KT. SEAS 6 TO 7 FT.
FRI NIGHT
NE WINDS 15 KT. SEAS 5 TO 7 FT.
SAT
NE WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
BAHAMAS N OF 22N
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
ATLC WATERS S OF 22N W OF 65W
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
WED
E WINDS 10 TO 20 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 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 4 TO 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TUE NIGHT
E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
WED
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.
THU
E WINDS 15 TO 20 KT. SEAS 7 TO 8 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
SAT
E WINDS 15 KT. SEAS 6 TO 7 FT.
SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 7 FT.
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