763
FZNT31 KNHC 100916
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
416 AM EST WED DEC 10 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 TO STRONG TRADE WINDS IN THE CENTRAL CARIBBEAN
WILL EXPAND TO ACROSS THE EASTERN CARIBBEAN BY LATE FRI AND INTO
THE WEEKEND AS A TIGHTENING PRESSURE GRADIENT DEVELOPS BETWEEN
LOWER PRESSURES IN NORTHERN SOUTH AMERICA AND IN THE
SOUTHWESTERN CARIBBEAN, A STALLED FRONT THAT EXTENDS FROM
WESTERN CUBA TO INLAND THE YUCATAN PENINSULA 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, WITH WINDS POSSIBLY
REACHING NEAR GALE AT TIMES. ELSEWHERE, FRESH TO LOCALLY STRONG
TRADE WINDS OVER THE TROPICAL ATLANTIC WATERS WILL CONTINUE INTO
THIS WEEKEND WHILE FUNNELING THROUGH THE PASSAGES. NEW E SWELL
WILL SUPPORT ROUGH SEAS OVER THIS REGION 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 4 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
NE 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.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS LESS
THAN 10 KT IN THE MORNING, BECOMING VARIABLE WINDS LESS THAN
10 KT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
TONIGHT
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, VARIABLE
WINDS LESS THAN 10 KT, BECOMING NE LESS THAN 10 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
THU
E WINDS 10 TO 20 KT S OF 18N, AND NE LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT S OF 18N, AND
3 TO 4 FT ELSEWHERE.
FRI
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 20 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.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
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.
TONIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
THU NIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 15 TO 25 KT ELSEWHERE. 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 8 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
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
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
N TO NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN
N TO NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 5 TO 7 FT.
THU
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.
THU NIGHT
E WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. 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.
SAT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
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.
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 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.
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.
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 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.
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.
SUN
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COLD FRONT THAT EXTENDS FROM NEAR 31N55W
SOUTHWESTWARD TO 26N69W WILL BEGIN TO WEAKEN TODAY. IT WILL
CONTINUE EASTWARD REACHING THE EASTERN FORECAST WATERS BY FRI.
FRESH TO STRONG SW WINDS AND ROUGH SEAS THAT PRECEDE THE FRONT
NORTH OF 28N AND EAST OF 60W WILL DIMINISH THIS MORNING. NW
SWELL ASSOCIATED WITH THIS FRONT WILL EXPAND IN COVERAGE OVER
THE EASTERN ZONES ON THU AS IT MERGES WITH AN EXTENSIVE AREA OF
E SWELL. SEAS REACHING TO AROUND 12 FT WILL BE POSSIBLE NORTH OF
30N AND EAST OF 62W THIS MORNING BEFORE SHIFTING E OF THE AREA.
SEAS ELSEWHERE WILL GRADUALLY SUBSIDE FROM W TO E INTO EARLY
THU. LOOKING AHEAD, FRESH TO STRONG SW WINDS ALONG WITH ROUGH
SEAS WILL DEVELOP OFFSHORE OF NORTHERN FLORIDA BY THIS EVENING
AHEAD OF A COLD FRONT THAT WILL BE MOVING ACROSS THE SOUTHERN
UNITED STATES. THIS COLD FRONT IS EXPECTED TO MOVE OFFSHORE THE
SOUTHEASTERN U.S. COAST TONIGHT, WITH FRESH TO STRONG NW WINDS
AND ROUGH SEAS EXPECTED IN THE WAKE OF THE FRONT. THE FRONT WILL
WEAKEN AS IT QUICKLY REACHING THE NE FORECAST WATERS ON FRI. IN
ITS WAKE, HIGH PRESSURE WILL BECOME ESTABLISHED E TO W NEAR 29N
INTO THE WEEKEND AS YET ANOTHER FRONTAL BOUNDARY ATTEMPTS TO
MOVE ACROSS THE WATERS EAST OF NORTHERN FLORIDA.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW 10 TO 15 KT
IN THE AFTERNOON. SEAS 6 TO 7 FT.
TONIGHT
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 15 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
SW WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT
W WINDS LESS THAN 10 KT, SHIFTING TO SE IN THE AFTERNOON.
SEAS 3 TO 4 FT.
SAT NIGHT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
SUN
W TO NW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
N WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
SE WINDS LESS THAN 10 KT, SHIFTING TO S IN THE
AFTERNOON. SEAS 7 TO 10 FT.
TONIGHT
SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU
W WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
NW WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
FRI
NW WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SAT
S WINDS LESS THAN 10 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 4 TO 6 FT.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN
SE WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE
AFTERNOON. SEAS 4 TO 6 FT.
SUN NIGHT
NW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
BAHAMAS N OF 22N
TODAY
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
THU
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
N WINDS 10 TO 15 KT. 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.
SUN
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
NE 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, S WINDS 10 TO 15 KT. ELSEWHERE, S WINDS 10 TO
15 KT. SEAS 6 TO 8 FT.
TONIGHT
W OF 70W, S TO SW WINDS LESS THAN 10 KT. ELSEWHERE, 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
W OF 70W, NW TO N WINDS 10 TO 15 KT. ELSEWHERE,
SW WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI
NE WINDS LESS THAN 10 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 15 KT. SEAS 5 TO 7 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS LESS THAN 10 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 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TONIGHT
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 7 TO 10 FT.
SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT.
SUN
E WINDS 15 TO 20 KT. SEAS 9 TO 10 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 8 TO 10 FT.
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