977
FZNT31 KNHC 301515
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1015 AM EST TUE DEC 30 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 LOCALLY STRONG E WINDS WILL PULSE IN THE
SOUTH-CENTRAL CARIBBEAN INTO EARLY THU AS LOW PRESSURE PREVAILS
OVER NORTHERN COLOMBIA. LOCALLY ROUGH SEAS WILL BE POSSIBLE
OFFSHORE OF NORTHERN COLOMBIA INTO EARLY WED. ELSEWHERE, A COLD
FRONT MOVING THROUGH THE SOUTHERN GULF OF AMERICA WILL ENTER THE
NORTHWESTERN CARIBBEAN BY THIS AFTERNOON, SUPPORTING FRESH TO
LOCALLY STRONG N WINDS AND ROUGH SEAS FROM THE YUCATAN CHANNEL
THROUGH THE NORTHWESTERN BASIN THROUGH WED. FOLLOWING THE FRONT,
HIGH PRESSURE WILL BUILD OVER THE GULF OF AMERICA, SUPPORTING
MODERATE TO FRESH N TO NE WINDS OVER THE CENTRAL AND WESTERN
CARIBBEAN THROUGH LATE WEEK. OVER THE ATLANTIC WATERS, ROUGH SEAS
IN N SWELL WILL PREVAIL THROUGH LATE THU, WITH SEAS SUBSIDING BY
FRI.
NW CARIBBEAN W OF 85W
TODAY
NE WINDS 10 TO 20 KT. SEAS 3 TO 6 FT.
TONIGHT
N WINDS 15 TO 25 KT. SEAS 6 TO 10 FT.
WED
N WINDS 10 TO 20 KT. SEAS 5 TO 8 FT.
WED NIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT NIGHT
NE WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
NE WINDS 10 TO 15 KT S OF 18N, AND NE LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 TO 4 FT ELSEWHERE.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 8 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 4 TO 8 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 7 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
SAT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
TONIGHT
E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT.
WED
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TONIGHT
N WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT
N WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 15 TO 25 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA,
AND 4 TO 6 FT ELSEWHERE.
TONIGHT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA,
AND 5 TO 7 FT ELSEWHERE.
WED NIGHT
E WINDS 15 TO 25 KT. SEAS 3 TO 4 FT GULF OF
VENEZUELA, AND 5 TO 7 FT ELSEWHERE.
THU
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
E 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 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TODAY
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED
E WINDS 10 TO 15 KT, SHIFTING TO SE IN THE AFTERNOON.
SEAS 6 TO 9 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
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TODAY
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
THU
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
ROUGH SEAS IN N TO NW SWELL ASSOCIATED WITH A COLD
FRONT IN THE CENTRAL TROPICAL ATLANTIC, EAST OF 65W, WILL SLOWLY
SUBSIDE FROM WEST TO EAST THROUGH WED MORNING. A COLD FRONT
EXTENDING FROM 31N70W SOUTHWESTWARD THROUGH SOUTH FLORIDA WILL
PROGRESS EASTWARD THROUGH MIDWEEK, SUPPORTING FRESH TO LOCALLY
STRONG SW WINDS AND ROUGH SEAS AHEAD OF THE FRONT, GENERALLY
NORTH OF 26N, THROUGH THU. MODERATE TO FRESH NW WINDS AND ROUGH
SEAS IN NW SWELL ARE EXPECTED IN THE WAKE OF THE FRONT INTO WED.
LOOKING AHEAD, FRESH TO LOCALLY STRONG W WINDS AND ROUGH SEAS MAY
DEVELOP OFF THE COAST OF NORTHERN FLORIDA ON THU AS A COLD FRONT
PASSES NORTH OF THE WATERS. OTHERWISE, WEAK HIGH PRESSURE
BUILDING OVER THE WESTERN TROPICAL ATLANTIC WILL SUPPORT MODERATE
OR WEAKER WINDS AND MODERATE SEAS OVER THE REST OF THE WATERS
FOR LATE WEEK.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
NW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TONIGHT
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
W WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
THU
W WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
W WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
SAT
SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT NIGHT
W WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
W WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
TONIGHT
NW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED
NW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
NW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
W WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
FRI
W WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
FRI NIGHT
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
BAHAMAS N OF 22N
TODAY
W WINDS LESS THAN 10 KT, SHIFTING TO NW IN THE
AFTERNOON. SEAS 3 TO 4 FT.
TONIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
NW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
NW WINDS LESS THAN 10 KT. SEAS 3 FT.
THU NIGHT
N WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE EVENING,
SUBSIDING TO 2 FT OR LESS.
FRI
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT NIGHT
W WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
W WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
NW WINDS 10 KT. SEAS 5 TO 7 FT.
THU
NW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU NIGHT
NW WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
FRI
N WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
N WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS THAN
10 KT IN THE AFTERNOON. SEAS 4 TO 6 FT.
SAT NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
TONIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS THAN
10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT.
WED
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
SE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT.
THU
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
FRI
VARIABLE WINDS LESS THAN 10 KT. SEAS 5 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
SAT NIGHT
E WINDS 10 KT. SEAS 4 TO 5 FT.
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