634
FZNT31 KNHC 170913
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
413 AM EST TUE DEC 17 2024
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
A STRONG PRESSURE GRADIENT BETWEEN HIGH PRESSURE
OVER THE NORTHWESTERN ATLANTIC AND A TROUGH OVER THE WESTERN
CARIBBEAN WILL CONTINUE TO SUPPORT MODERATE TO LOCALLY FRESH NE
WINDS ACROSS THE NORTHWESTERN CARIBBEAN THIS MORNING BEFORE
WINDS DIMINISH. THE TROUGH WILL SLOWLY PROGRESS NORTHWESTWARD
THROUGH MIDWEEK, AND LOW PRESSURE WILL STRENGTHEN OVER
NORTHWESTERN COLOMBIA. MODERATE TO FRESH TRADE WINDS WILL OCCUR
IN RESPONSE TO THESE FEATURES OVER THE CENTRAL AND EASTERN
CARIBBEAN THROUGH FRI. STRONG NE WINDS WILL OCCUR AT TIMES OFF
THE COAST OF COLOMBIA AND VENEZUELA, THROUGH THE ATLANTIC
PASSAGES AND IN THE LEE OF HISPANIOLA AND PUERTO RICO, WITH THE
STRONGEST WINDS OCCURRING AT NIGHT. LOCALLY ROUGH SEAS WILL
DEVELOP IN AREAS OF STRONG WIND.
NW CARIBBEAN W OF 85W
TODAY
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
TONIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
WED NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 FT.
THU
N WINDS LESS THAN 10 KT. SEAS 3 FT.
THU NIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT.
FRI
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS
3 TO 5 FT.
WED
S OF 18N, E WINDS 10 TO 20 KT. ELSEWHERE, E WINDS 10 TO
15 KT, DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. SEAS
3 TO 5 FT.
WED NIGHT
NE WINDS 10 TO 20 KT S OF 18N, AND NE LESS THAN
10 KT ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 3 FT ELSEWHERE.
THU
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 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 WITHIN
90 NM OF COAST OF COLOMBIA, AND 4 TO 6 FT ELSEWHERE.
WED
NE 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 5 TO 7 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SW CARIBBEAN S OF 11N
TODAY
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 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 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 4 TO 6 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT
NE WINDS 10 TO 15 KT, SHIFTING TO N IN THE AFTERNOON.
SEAS 3 TO 5 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA,
AND 4 TO 6 FT ELSEWHERE.
TONIGHT
E WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 4 TO 6 FT.
WED
E WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO 20 KT
ELSEWHERE. SEAS 3 TO 4 FT GULF OF VENEZUELA, AND 5 TO 7 FT
ELSEWHERE.
WED NIGHT
E WINDS 20 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. 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.
FRI
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 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 5 TO 7 FT.
TONIGHT
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 7 TO 10 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 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.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TODAY
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 6 TO 8 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.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A TIGHT PRESSURE GRADIENT BETWEEN STRENGTHENING HIGH
PRESSURE IN THE NORTHWESTERN ATLANTIC AND MULTIPLE TROUGHS IN
THE BAHAMAS AND WESTERN CARIBBEAN WILL CONTINUE TO SUPPORT
WIDESPREAD FRESH E TO NE WINDS AND ROUGH SEAS NORTH OF THE
GREATER ANTILLES THROUGH WED. LARGE NE SWELL GENERATED BY EARLIER
GALE FORCE WINDS ACROSS THE NORTHERN ATLANTIC WILL MAINTAIN
ROUGH SEAS ACROSS MOST AREAS NORTH OF THE GREATER ANTILLES AND
CUBA TODAY BEFORE SEAS VERY SLOWLY SUBSIDE FROM NORTH TO SOUTH
LATE WED INTO THU. ELSEWHERE, A COLD FRONT IN THE CENTRAL
ATLANTIC WILL PROGRESS SOUTHWESTWARD THROUGH WED, PRODUCING FRESH
TO STRONG WINDS FOR AREAS NORTH OF 20N THROUGH THU. ROUGH SEAS
WILL ACCOMPANY THE WINDS, WITH SEAS IN EXCESS OF 8 FT EXTENDING
AS FAR SOUTH AS 18N BY THIS EVENING, AS TO 14N BY WED MORNING.
SOUTH OF 20N, MODERATE TO FRESH TRADES AND ROUGH SEAS WILL
PREVAIL THROUGH LATE THIS WEEK. LOOKING AHEAD, THE NEXT COLD
FRONT IS FORECAST TO MOVE OFF THE NORTHEASTERN FLORIDA COAST WED
NIGHT INTO THU, REACH FROM NEAR 32N76W TO SOUTH-CENTRAL FLORIDA
BY LATE THU NIGHT AND STALL. A STRONG COLD FRONT MAY QUICKLY
MERGE WITH THE STALLED FRONT LATE ON FRI, FOLLOWED BY FRESH TO
STRONG NW WINDS.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
TONIGHT
SE WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.
WED
SE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU
S WINDS LESS THAN 10 KT, SHIFTING TO NW IN THE AFTERNOON.
SEAS 5 TO 7 FT.
THU NIGHT
N WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
FRI
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NW WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
SAT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
N WINDS 10 KT. SEAS 5 TO 6 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
SE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
THU NIGHT
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI
SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
W WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT
NW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
NW WINDS 10 KT. SEAS 6 TO 8 FT.
BAHAMAS N OF 22N
TODAY
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED NIGHT
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI
NW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
N WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
E WINDS 15 TO 20 KT. SEAS 9 TO 11 FT.
TONIGHT
E WINDS 15 TO 25 KT W OF 70W, AND E 10 TO 20 KT
ELSEWHERE. SEAS 9 TO 11 FT.
WED
E WINDS 15 TO 25 KT W OF 70W, AND E 10 TO 20 KT
ELSEWHERE. SEAS 8 TO 11 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU
SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
THU NIGHT
SE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
SAT
W WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
WED
E WINDS 10 TO 20 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 6 TO 9 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
SE WINDS 10 TO 15 KT, SHIFTING TO S AFTER MIDNIGHT.
SEAS 4 TO 6 FT.
SAT
W WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
E WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
TONIGHT
E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT.
WED
E WINDS 15 TO 20 KT. SEAS 9 TO 10 FT.
WED NIGHT
E WINDS 20 TO 25 KT. SEAS 9 TO 11 FT.
THU
E WINDS 20 TO 25 KT. SEAS 10 TO 11 FT.
THU NIGHT
E WINDS 15 TO 20 KT. SEAS 9 TO 10 FT.
FRI
E WINDS 15 TO 20 KT. SEAS 8 TO 9 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
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