489 
FZNT31 KNHC 051527
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
Issued by NWS Ocean Prediction Center Washington DC
1027 AM EST Wed Mar 5 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 strong subtropical ridge north of the area will
support trade winds pulsing to locally strong speeds offshore of
Colombia and through the Gulf of Venezuela each night and
morning through the forecast period. A strengthening pressure
gradient between a cold front moving southeastward through the
Gulf of America, the Colombian low, and high pressure over the
western Atlantic will sustain fresh to strong SE winds in the
Gulf of Honduras through late morning. The aforementioned cold
front will enter the northwestern Caribbean tonight and
gradually weaken, with moderate to locally fresh N to NE winds
expected behind the front through Thu morning. Otherwise,
moderate trade winds and slight to moderate seas are expected
across the central and eastern Caribbean into this weekend. 

NW Caribbean W of 85W

.TODAY...SE winds 10 to 20 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 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...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...E winds less than 10 kt, shifting to N after
midnight. Seas 4 to 6 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...S of 18N, E winds 10 to 15 kt. Elsewhere, SE winds
10 to 15 kt, diminishing to less than 10 kt in the afternoon.
Seas 3 to 4 ft. 
.TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.THU...NE winds less than 10 kt S of 18N, and N 10 to 15 kt
elsewhere. Seas 2 ft or less. 
.THU NIGHT...S of 18N, NE winds 10 to 15 kt, diminishing to less
than 10 kt after midnight. Elsewhere, N winds 10 to 15 kt. Seas
2 ft or less, building to 3 ft after midnight. 
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.SAT...E winds 10 to 15 kt. Seas 3 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 ft. 
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 4 ft. 

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 15 to 20 kt within 90 nm of coast of Colombia,
and E 10 to 15 kt elsewhere. Seas 5 to 7 ft. 
.TONIGHT...NE winds 15 to 25 kt within 90 nm of coast of 
Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.THU...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU NIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. 

SW Caribbean S of 11N

.TODAY...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...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 less than 10 kt. Seas 3 to 4 ft. 
.FRI...NE winds less than 10 kt. Seas 3 to 5 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...NE winds less than 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...N winds less than 10 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 

Caribbean between 64W and 72W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Gulf of Venezuela, seas 3 ft in the evening,
subsiding to 2 ft or less. Elsewhere, seas 3 to 5 ft. 
.THU...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 5 ft elsewhere. 
.THU NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Gulf of Venezuela, seas 2 ft or less, building
to 3 ft after midnight. Elsewhere, seas 3 to 5 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...E winds 10 to 15 kt. Seas 3 to 4 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 5 ft. 

Offshore Leeward Islands and adjacent ATLC waters from 15N to
19N W of 55W

.TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.TONIGHT...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 10 to 15 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...E winds 10 to 15 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 4 to 6 ft. 

Offshore Windward Islands and adjacent ATLC waters from 07N to
15N W of 55W

.TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 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 5 to 7 ft. 
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Strong S winds will occur this morning north of 27N
and west of 75W ahead of a cold front moving through the
southeastern United States. S to SW winds will strengthen to
gale force by late morning to early afternoon offshore of NE 
Florida as the front pushes off the coast and rapidly progresses 
eastward. Gale force winds will continue along and ahead of the 
front through Thu night north of 29N. Behind the front, gale 
force NW winds are expected Thu morning through Thu night north 
of 29N. N to NW swell associated with this system will propagate 
southeastward through late week, producing rough seas north of 
25N through Thu, and north of 21N through Fri. Peak seas of 15 to
19 ft are anticipated north of 27N between 78W and 60W through 
late this week. The storm system will progress eastward across 
the central Atlantic through Fri before lifting north and east of
the forecast waters. Elsewhere, fresh to strong NE winds and 
rough seas will prevail north of a stationary front today, 
extending from 31N46W to 21N66W. Otherwise, moderate to fresh 
trades and rough seas will prevail south of 25N this week. 

ATLC waters from 27N to 31N W of 77W

...GALE WARNING...

.TODAY...S winds 25 to 35 kt. Seas 8 to 13 ft. 
.TONIGHT...W winds 25 to 35 kt. Seas 9 to 14 ft. 
.THU...NW winds 20 to 30 kt. Seas 11 to 16 ft. 
.THU NIGHT...NW winds 15 to 25 kt. Seas 9 to 14 ft, subsiding to
7 to 10 ft after midnight. 
.FRI...NW winds less than 10 kt, shifting to SW in the
afternoon. Seas 5 to 7 ft. 
.FRI NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...SW winds 15 to 25 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NW winds 15 to 25 kt. Seas 3 to 5 ft. 

ATLC waters from 27N to 31N between 65W and 77W

...GALE WARNING...

.TODAY...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...S winds 25 to 35 kt W of 70W, and SE 10 to 20 kt 
elsewhere. Seas 8 to 13 ft W of 70W, and 6 to 8 ft elsewhere. 
.THU...W winds 25 to 35 kt W of 70W, and S 20 to 30 kt 
elsewhere. W of 70W, seas 9 to 14 ft, building to 12 to 17 ft in 
the afternoon. Elsewhere, seas 8 to 11 ft. 
.THU NIGHT...NW winds 20 to 30 kt W of 70W, and W 25 to 35 kt 
elsewhere. Seas 13 to 18 ft W of 70W, and 12 to 17 ft elsewhere.
.FRI...NW winds 10 to 20 kt. Seas 10 to 15 ft. 
.FRI NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 8 to 11 ft. 
.SAT...SW winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. 
.SUN...SW winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN NIGHT...SW winds 15 to 25 kt. Seas 5 to 7 ft. 

Bahamas N of 22N

.TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU...NW winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...E winds less than 10 kt. Seas 4 to 6 ft. 
.FRI NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 
.SAT...S winds less than 10 kt. Seas 3 to 4 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 3 ft. 
.SUN...S winds 10 to 15 kt. Seas 3 ft in the morning, subsiding
to 2 ft or less. 
.SUN NIGHT...SW winds less than 10 kt. Seas 2 ft or less. 

ATLC waters from 22N to 27N between 65W and the Bahamas

.TODAY...E winds 10 to 20 kt. Seas 7 to 9 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. 
.THU...W winds 15 to 25 kt W of 70W, and S 10 to 20 kt
elsewhere. Seas 7 to 10 ft. 
.THU NIGHT...NW winds 15 to 25 kt W of 70W, and W 10 to 20 kt
elsewhere. Seas 8 to 11 ft. 
.FRI...NW winds 10 to 15 kt, shifting to N in the afternoon.
Seas 8 to 11 ft. 
.FRI NIGHT...NE winds less than 10 kt. Seas 8 to 11 ft. 
.SAT...SE winds less than 10 kt. Seas 6 to 9 ft. 
.SAT NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 5 to 7 ft. 
.SUN...S winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. 

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.THU...S winds less than 10 kt. Seas 4 to 6 ft. 
.THU NIGHT...W winds less than 10 kt. Seas 4 to 6 ft. 
.FRI...N winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 4 to 6 ft. 
.FRI NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 5 to 7 ft. 
.SAT...E winds less than 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. 
.SUN...SE winds less than 10 kt. Seas 3 to 5 ft. 
.SUN 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 20 kt. Seas 7 to 8 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft. 
.THU...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.THU NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI...SE winds less than 10 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 6 to 8 ft. 
.SUN...E winds less than 10 kt. Seas 6 to 7 ft. 
.SUN NIGHT...E winds 10 kt. Seas 5 to 6 ft.