021
FZNT31 KNHC 081917
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
317 PM EDT TUE APR 8 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
A SLOW MOVING COLD FRONT WILL MOVE ACROSS THE
NORTHWEST CARIBBEAN THROUGH WED, THEN WILL GRADUALLY DISSIPATE
FROM EASTERN CUBA TO THE HONDURAS-NICARAGUA BORDER THU. FRESH TO
STRONG NW TO N WINDS AND MODERATE TO LOCALLY ROUGH SEAS WILL
FOLLOW THE FRONT ACROSS THE YUCATAN CHANNEL AND FAR NORTHWEST
CARIBBEAN THROUGH EARLY WED. ELSEWHERE, MODERATE TO FRESH TRADES
WILL PREVAIL IN THE SOUTH- CENTRAL CARIBBEAN INTO LATE WEEK,
WITH LOCALLY STRONG WINDS PULSING OFF COLOMBIA TONIGHT. FARTHER
EAST, LARGE N SWELL WILL IMPACT ATLANTIC WATERS E OF THE LESSER
ANTILLES THROUGH THU. LOOKING AHEAD, FRESH TO STRONG N WINDS AND
BUILDING SEAS WILL FOLLOW THE REMNANTS OF THE FRONT OFF THE
COAST OF NICARAGUA LATE FRI INTO SUN.
NW CARIBBEAN W OF 85W
TONIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
N WINDS 10 TO 20 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
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT
NE WINDS 10 TO 15 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 SW LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 5 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE 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 4 FT.
SUN
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS 10 TO 20 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 15 KT ELSEWHERE. SEAS 4 TO 5 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
FRI NIGHT
NE WINDS 10 TO 15 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 4 TO 6 FT.
SUN
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SW CARIBBEAN S OF 11N
TONIGHT
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
WED
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
N WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
N WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
CARIBBEAN BETWEEN 64W AND 72W
TONIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 20 KT GULF OF VENEZUELA, AND E 10 TO 15 KT
ELSEWHERE. SEAS 3 FT GULF OF VENEZUELA, AND 4 TO 6 FT ELSEWHERE.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 3 FT GULF OF VENEZUELA,
AND 4 TO 6 FT ELSEWHERE.
THU
E WINDS 10 TO 20 KT. SEAS 3 FT GULF OF VENEZUELA, AND
5 TO 7 FT ELSEWHERE.
THU NIGHT
E WINDS 10 TO 20 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 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 15 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 15 KT. SEAS 6 TO 8 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 15 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 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 4 TO 6 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
WED NIGHT
E WINDS 10 TO 20 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 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 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 4 TO 6 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A COLD FRONT EXTENDS FROM NEAR 31N74W TO NEAR FORT
LAUDERDALE, FLORIDA. ALONG AND JUST AHEAD OF THE FRONT,
SCATTERED STRONG THUNDERSTORMS ARE PRODUCING LOCALLY STRONG TO
NEAR GALE FORCE WINDS. THIS FRONT WILL MOVE EAST INTO WED, THEN
GRADUALLY STALL AS LOW PRESSURE FORMS ALONG IT JUST NE OF THE
BAHAMAS. THIS LOW WILL MOVE ENE INTO LATE WEEK BEFORE WEAKENING
AND DISSIPATING AS THE FRONT ALSO DISSIPATES. NE WINDS WILL
DEVELOP N OF THE BAHAMAS TONIGHT AND INCREASE TO GALE FORCE N OF
28N BETWEEN 70W AND 80W WED MORNING, THEN PREVAIL THROUGH WED
EVENING. VERY ROUGH SEAS WILL BUILD IN THE AREA OF GALES. AS THE
LOW MOVES AWAY FROM THE AREA AND WEAKENS THU, CONDITIONS WILL
IMPROVE. LOOKING AHEAD, A WEAKER FRONT WILL MOVE OFF THE COAST OF
FLORIDA LATE FRI, FOLLOWED BY MODERATE TO FRESH NW WINDS.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
NE WINDS 15 TO 25 KT. SEAS 4 TO 6 FT, BUILDING TO 6 TO
9 FT IN THE AFTERNOON.
WED NIGHT
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
THU
NE WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
FRI
SE WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE
AFTERNOON. SEAS 4 TO 6 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT
W WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT NIGHT
NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
..GALE WARNING WED INTO WED NIGHT
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WED
SW WINDS 25 TO 35 KT W OF 70W, AND S 10 TO 15 KT
ELSEWHERE. W OF 70W, SEAS 6 TO 8 FT, BUILDING TO 8 TO 11 FT IN
THE AFTERNOON. ELSEWHERE, SEAS 4 TO 6 FT.
WED NIGHT
W OF 70W, E WINDS 15 TO 25 KT. ELSEWHERE, S WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS
8 TO 13 FT W OF 70W, AND 5 TO 7 FT ELSEWHERE.
THU
SE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT W OF 70W, AND 4 TO
6 FT ELSEWHERE.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
FRI
S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
BAHAMAS N OF 22N
TONIGHT
S WINDS LESS THAN 10 KT. SEAS 3 FT.
WED
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 FT.
WED NIGHT
NW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 FT.
THU
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI
NE WINDS LESS THAN 10 KT IN THE MORNING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 FT IN THE EVENING, SUBSIDING
TO 2 FT OR LESS.
SAT
NW WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT NIGHT
NW WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN
N WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING
TO 3 FT AFTER MIDNIGHT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
WED
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU
W OF 70W, SW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT IN THE AFTERNOON. ELSEWHERE, SE WINDS 10 TO 15 KT. SEAS
5 TO 7 FT.
THU NIGHT
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT
NW WINDS LESS THAN 10 KT, SHIFTING TO N AFTER
MIDNIGHT. SEAS 3 TO 5 FT.
ATLC WATERS S OF 22N W OF 65W
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS 10 TO 15 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.
WED
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
THU
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 5 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
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