339
FZNT31 KNHC 042042
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
342 PM EST THU DEC 4 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 FRESH E TO NE WINDS AND MODERATE SEAS
ARE EXPECTED OVER MUCH OF THE CARIBBEAN THROUGH THIS WEEKEND AS
LOW PRESSURE PREVAILS OVER THE SOUTH-CENTRAL BASIN AND HIGH
PRESSURE DRIFTS EASTWARD IN THE CENTRAL ATLANTIC. LOCALLY STRONG
WINDS MAY PULSE OFFSHORE OF COLOMBIA LATE TONIGHT. MAINLY
MODERATE TRADE WINDS ARE THEN EXPECTED EARLY NEXT WEEK. ROUGH
SEAS IN E SWELL WILL PREVAIL EAST OF THE LESSER ANTILLES AND
THROUGH THE ATLANTIC PASSAGES INTO EARLY NEXT WEEK. LOOKING
AHEAD, A COLD FRONT MAY APPROACH THE NORTHWESTERN CARIBBEAN EARLY
NEXT WEEK.
NW CARIBBEAN W OF 85W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 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
E WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
TUE
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS
10 TO 15 KT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 20 KT S OF 18N, AND SE LESS THAN 10 KT
ELSEWHERE. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
MON NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 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 15 KT ELSEWHERE. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 15 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 15 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SW CARIBBEAN S OF 11N
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
NW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
N WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN BETWEEN 64W AND 72W
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF
VENEZUELA, AND 5 TO 7 FT ELSEWHERE.
FRI
GULF OF VENEZUELA, E WINDS LESS THAN 10 KT, SHIFTING TO
NE IN THE AFTERNOON. ELSEWHERE, E WINDS 10 TO 20 KT. SEAS 3 FT
GULF OF VENEZUELA, AND 5 TO 7 FT ELSEWHERE.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF
VENEZUELA, AND 5 TO 7 FT ELSEWHERE.
SAT
E WINDS 10 TO 20 KT. SEAS 3 FT GULF OF VENEZUELA, AND
5 TO 7 FT ELSEWHERE.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
MON
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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 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 9 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 15 KT. SEAS 6 TO 8 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE 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 20 KT. 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 9 FT.
SAT
E WINDS 10 TO 20 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
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
ROUGH SEAS IN E SWELL SOUTH OF 22N AND EAST OF 60W
WILL SLOWLY SUBSIDE INTO FRI. ELSEWHERE, A WEAKENING COLD FRONT
IS SLATED TO MOVE THROUGH THE CENTRAL ATLANTIC ON FRI, LEADING TO
FRESH NW TO NE WINDS AND ROUGH SEAS NORTH OF 27N AND EAST OF 65W
THROUGH FRI NIGHT. A LOW PRESSURE SYSTEM MOVING THROUGH THE
SOUTHERN UNITED STATES WILL SUPPORT FRESH TO LOCALLY STRONG SW
WINDS OFFSHORE OF NORTHERN FLORIDA BY FRI MORNING, WITH FRESH TO
STRONG WINDS AND LOCALLY ROUGH SEAS EXPANDING EASTWARD INTO THE
CENTRAL ATLANTIC THIS WEEKEND. A COLD FRONT ASSOCIATED WITH THIS
SYSTEM WILL PUSH OFFSHORE OF THE SOUTHEASTERN U.S. THIS WEEKEND,
LEADING TO LOCALLY FRESH N TO NE WINDS IN THE WAKE OF THE FRONT
OFFSHORE OF FLORIDA. LOOKING AHEAD, A COMPLEX LOW PRESSURE SYSTEM
AND STRONG COLD FRONT MAY MOVE THROUGH THE NORTHWESTERN TROPICAL
ATLANTIC BY EARLY NEXT WEEK, SUPPORTING WIDESPREAD FRESH TO
STRONG WINDS AND BUILDING SEAS AHEAD OF AND BEHIND THE FRONT.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
FRI
SW WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
FRI NIGHT
SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NW WINDS 10 TO 20 KT, SHIFTING TO NE AFTER
MIDNIGHT. SEAS 4 TO 6 FT.
SUN
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
TUE
NE WINDS 10 TO 15 KT, SHIFTING TO E IN THE AFTERNOON.
SEAS 8 TO 11 FT.
TUE NIGHT
E WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 7 TO 9 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TONIGHT
NE WINDS 10 TO 15 KT W OF 70W, AND N LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT.
FRI
W OF 70W, SE WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE
AFTERNOON. ELSEWHERE, SE WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
FRI NIGHT
SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN
S WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
MON
W WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
MON NIGHT
NW WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.
TUE NIGHT
E WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 8 TO 11 FT.
BAHAMAS N OF 22N
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT, SHIFTING TO SE IN THE AFTERNOON.
SEAS 3 TO 4 FT.
FRI NIGHT
SE 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 LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN NIGHT
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
MON
SW WINDS 10 TO 15 KT. SEAS 3 FT.
MON NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 FT.
TUE
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TONIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
SAT
S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN
S WINDS 10 KT. SEAS 4 TO 5 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
MON
SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
W WINDS 10 TO 15 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 5 TO 7 FT.
TUE NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 6 TO 8 FT.
ATLC WATERS S OF 22N W OF 65W
TONIGHT
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 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 15 KT, SHIFTING TO SE AFTER MIDNIGHT.
SEAS 4 TO 6 FT.
MON
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
MON NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE
S WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
MON NIGHT
SE WINDS 10 KT. SEAS 5 TO 7 FT.
TUE
SE WINDS 10 KT. SEAS 5 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
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