653
FZNT31 KNHC 100317
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1017 PM 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
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 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 TRADES WILL
PREVAIL OVER THE ATLANTIC WATERS AND THROUGH THE PASSAGES INTO
THIS WEEKEND. NEW EAST SWELL WILL SUPPORT ROUGH SEAS OVER THIS
REGION WED THROUGH THIS WEEKEND.
NW CARIBBEAN W OF 85W
TONIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS LESS THAN 10 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, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
SUN
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
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
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 5 TO 7 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.
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 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
TONIGHT
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
THU
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND E 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.
THU NIGHT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
FRI
E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 7 TO 10 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
TONIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
WED
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. 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. SEAS 6 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
E WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 6 TO 8 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 6 TO 8 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT.
CARIBBEAN BETWEEN 64W AND 72W
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 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 6 TO 8 FT ELSEWHERE.
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 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 5 TO 7 FT ELSEWHERE.
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 8 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 9 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
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 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 10 TO 20 KT. SEAS 8 TO 11 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.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
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 8 TO 11 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 8 TO 11 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.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COLD FRONT THAT EXTENDS FROM NEAR 31N59W
SOUTHWESTWARD TO NEAR 25N74W WILL BEGIN TO WEAKEN WED AS IT
CONTINUES EASTWARD REACHING THE EASTERN FORECAST WATERS BY FRI.
FRESH TO STRONG SOUTHWEST WINDS AND ROUGH SEAS THAT PRECEDE THE
FRONT NORTH OF 28N AND EAST OF 60W WILL DIMINISH LATE TONIGHT
INTO WED. NORTHWEST SWELL ASSOCIATED WITH THIS FRONT WILL EXPAND
SOUTHEASTWARD OVER THE NORTHWESTERN TROPICAL ATLANTIC THROUGH
WED, SUPPORTING ROUGH SEAS NORTH OF 27N BY LATE TONIGHT, AND
NORTH OF 25N BY WED AFTERNOON. SEAS REACHING TO AROUND 12 FT
WILL BE POSSIBLE NORTH OF 30N AND EAST OF 69W INTO WED
AFTERNOON. SEAS WILL SLOWLY SUBSIDE FROM WEST TO EAST, WEST OF
65W, INTO EARLY THU. LOOKING AHEAD, FRESH TO STRONG SOUTHWEST
WINDS ALONG WITH ROUGH SEAS WILL DEVELOP OFFSHORE OF NORTHERN
FLORIDA BY WED 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 WED NIGHT, WITH
FRESH TO STRONG NORTHWEST WINDS AND ROUGH SEAS EXPECTED IN THE
WAKE OF THE FRONT.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
N WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
WED
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW 10 TO 15 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 7 TO 10 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 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 TO 4 FT.
SAT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SE WINDS 10 KT. SEAS 3 FT.
SUN
S WINDS LESS THAN 10 KT, SHIFTING TO NW IN THE AFTERNOON.
SEAS 3 TO 4 FT.
SUN NIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 8 TO 11 FT.
WED
W OF 70W, E WINDS LESS THAN 10 KT, SHIFTING TO S IN THE
AFTERNOON. ELSEWHERE, S WINDS 10 TO 15 KT. 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 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 7 TO 10 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER
MIDNIGHT. SEAS 5 TO 7 FT.
SUN
S WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
BAHAMAS N OF 22N
TONIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
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 5 FT.
SUN
E WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TONIGHT
SE WINDS 10 TO 15 KT W OF 70W, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT.
WED
W OF 70W, S TO SW WINDS 10 TO 15 KT. ELSEWHERE, S WINDS
10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
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 6 TO 8 FT.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 5 TO 7 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 6 TO 8 FT.
SUN
SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SUN NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
ATLC WATERS S OF 22N W OF 65W
TONIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
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 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.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 9 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
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 15 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 8 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 15 TO 20 KT. SEAS 9 TO 10 FT.
SUN
E WINDS 15 TO 20 KT. SEAS 9 TO 11 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 9 TO 10 FT.
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