021
FZNT31 KNHC 140923
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
423 AM EST SUN DEC 14 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, AND MODERATE TO ROUGH
SEAS ARE EXPECTED OVER THE CENTRAL CARIBBEAN THROUGH MIDDAY
TODAY BEFORE WINDS BEGIN TO DIMINISH AS ATLANTIC HIGH PRESSURE
SHIFTS WELL NE OF THE REGION. ELSEWHERE, FRESH TO LOCALLY STRONG
TRADE WINDS AND ROUGH SEAS IN LARGE E SWELL WILL PREVAIL OVER
THE TROPICAL ATLANTIC WATERS, THROUGH THE ATLANTIC PASSAGES AND
INTO THE EASTERN PART OF THE BASIN THROUGH MON NIGHT. A COLD
FRONT WILL ENTER THE NORTHWESTERN CARIBBEAN ON MON, ACCOMPANIED
BY INCREASING WINDS AND BUILDING SEAS BEHIND THE FRONT. THIS
FRONT IS EXPECTED TO REACH FROM CENTRAL CUBA TO N BELIZE TUE
MORNING, THEN WILL BEGIN TO STALL AND GRADUALLY DISSIPATE
THROUGH WED. HIGH PRESSURE WILL BUILD INTO THE W ATLANTIC WED
NIGHT THROUGH THU NIGHT TO BRING A RETURN TO FRESH TO STRONG
TRADES ACROSS THE CENTRAL CARIBBEAN.
NW CARIBBEAN W OF 85W
TODAY
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
E WINDS 10 TO 20 KT S OF 18N, AND NE LESS THAN 10 KT
ELSEWHERE. SEAS 6 TO 8 FT S OF 18N, AND 3 TO 5 FT ELSEWHERE.
TONIGHT
S OF 18N, NE WINDS 10 TO 15 KT. ELSEWHERE, NE WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS
4 TO 6 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
NE 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 6 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 20 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 6 TO 9 FT.
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
E WINDS 15 TO 20 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 6 TO 8 FT.
TONIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT.
MON
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 5 TO 7 FT.
MON NIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF VENEZUELA,
AND 6 TO 8 FT ELSEWHERE.
TONIGHT
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.
MON
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO
15 KT ELSEWHERE. SEAS 5 TO 7 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 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 20 KT. SEAS 5 TO 7 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TODAY
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TODAY
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
MON
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
WED
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A GALE WARNING IS IN EFFECT FOR THE OFFSHORE WATERS
E OF NE FLORIDA, E OF 79W. A STRONG COLD FRONT IS FORECAST TO
MOVE OFF THE COAST OF THE SOUTHEASTERN UNITED STATES BY MIDDAY
TODAY, FOLLOWED BY STRONG TO NEAR GALE-FORCE NORTHERLY WINDS AND
QUICKLY BUILDING SEAS THROUGH MON MORNING. GALE-FORCE WINDS ARE
EXPECTED IMMEDIATELY BEHIND THE FRONT SUN EVENING THROUGH EARLY
MON. THE FRONT IS EXPECTED TO REACH FROM JUST E OF BERMUDA TO THE
NW BAHAMAS AND INTO THE STRAITS OF FLORIDA BY MON MORNING, AND
THEN BEGIN TO STALL FROM 29N55W TO THE SE BAHAMAS AND CENTRAL
CUBA BY TUE MORNING. LARGE N SWELL WILL BUILD IN ACROSS THE
REGIONAL WATERS BEHIND THE FRONT SUN NIGHT THROUGH TUE BEFORE
SUBSIDING. ELSEWHERE, A STATIONARY FRONT CURRENTLY EXTENDING FROM
29N55W THROUGH THE CENTRAL BAHAMAS AND ACROSS NW CUBA IS
ACCOMPANIED BY ACTIVE SHOWERS AND THUNDERSTORMS. THIS BOUNDARY
WILL DRIFT NORTHWARD TODAY AND GRADUALLY DISSIPATE.
ATLC WATERS FROM 27N TO 31N W OF 77W
..GALE WARNING
TODAY
SW WINDS 10 TO 15 KT, SHIFTING TO W 15 TO 25 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT.
TONIGHT
N WINDS 25 TO 35 KT. SEAS 7 TO 10 FT, BUILDING TO
8 TO 13 FT AFTER MIDNIGHT.
MON
NE WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 10 TO 13 FT.
MON NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 8 TO 11 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 5 TO 7 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
S WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
..GALE WARNING
TODAY
W OF 70W, S WINDS LESS THAN 10 KT, SHIFTING TO W IN THE
AFTERNOON. ELSEWHERE, S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TONIGHT
NW WINDS 25 TO 35 KT W OF 70W, AND SW 15 TO 25 KT
ELSEWHERE. SEAS 8 TO 11 FT.
MON
W OF 70W, N WINDS 20 TO 30 KT, DIMINISHING TO 10 TO 20 KT
IN THE AFTERNOON. ELSEWHERE, N WINDS 20 TO 30 KT. SEAS 10 TO
15 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 9 TO 14 FT W OF 70W, AND
12 TO 15 FT ELSEWHERE.
TUE
NE WINDS 10 TO 15 KT. SEAS 8 TO 13 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
SE WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
BAHAMAS N OF 22N
TODAY
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
N WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
MON
NE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
SE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TONIGHT
W OF 70W, SW WINDS LESS THAN 10 KT, SHIFTING TO NW
AFTER MIDNIGHT. ELSEWHERE, S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
MON
NE WINDS 15 TO 25 KT W OF 70W, AND NW 10 TO 20 KT
ELSEWHERE. SEAS 8 TO 11 FT.
MON NIGHT
NE WINDS 15 TO 25 KT W OF 70W, AND NE 10 TO 20 KT
ELSEWHERE. SEAS 8 TO 13 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 8 TO 13 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 9 TO 12 FT.
WED
E WINDS 10 TO 20 KT. SEAS 8 TO 10 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.
THU
E WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
SE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT.
TUE
E WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
E WINDS 15 TO 20 KT. SEAS 9 TO 11 FT.
TONIGHT
SE WINDS 10 TO 20 KT. SEAS 9 TO 10 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 8 TO 10 FT.
MON NIGHT
E WINDS LESS THAN 10 KT. SEAS 7 TO 9 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
WED
E WINDS 10 TO 15 KT. SEAS 9 TO 10 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 8 TO 9 FT.
THU
E WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
THU NIGHT
E WINDS 15 KT. SEAS 7 TO 8 FT.
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