000
FZNT31 KNHC 091520
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1020 AM EST Thu Mar 9 2023

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 22N between 55W and 64W, the SW N Atlantic S of
31N W of 65W including 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 between 55W and 64W

.SYNOPSIS...A cold front has reached the Greater Antilles and
vicinity waters today. It is followed by fresh to strong
northerly winds. Scattered showers are along the front. A
significant swell event is following the front leading to
hazardous marine conditions over the Atlantic waters and in the
northeast Caribbean passages. The front will reach from the
Leeward Islands to Jamaica to the western tip of Cuba on Fri
before dissipating Fri night. The swell event will also
propagate across the waters E of Leeward Islands late Thu into
Fri. Gentle to moderate trade winds will dominate the remainder
of the forecast period, except for moderate to fresh winds in
the southeastern and south-central Caribbean and fresh to strong
winds in the Gulf of Honduras Sun night through Mon morning. 

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds less than 10 kt. Seas 2 to 3 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...NE to E winds 10 to 15 kt. Seas 3 ft.
.TONIGHT...E winds less than 10 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 3 to 5 ft. 
.FRI...E winds less than 10 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 3 to 5 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 2 to 3 ft. 
.SAT...SE winds less than 10 kt. Seas 2 to 3 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 2 to 3 ft. 
.SUN...SE winds less than 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 2 to 3 ft.
.MON...SE winds less than 10 kt. Seas 2 to 3 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...NE winds 10 to 15 kt within 90 nm of coast of Colombia,
and NE less than 10 kt elsewhere. Seas 3 to 4 ft. 
.TONIGHT...NE winds 10 kt. Seas 3 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...E winds 15 to 20 kt within 90 nm of coast of
Colombia, and E 10 to 15 kt elsewhere. 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. 
.MON...E winds 10 to 15 kt. Seas 3 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

SW Caribbean S of 11N

.TODAY...NE 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 ft. 
.FRI...NE winds less than 10 kt. Seas 3 to 4 ft. 
.FRI NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 5 ft. 
.SAT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...NE winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...NE winds 10 kt. Seas 3 to 4 ft. 
.MON...NE winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 2 to 3 ft. 

Caribbean between 64W and 72W

.TODAY...NE winds 10 to 15 kt Gulf of Venezuela, and NE less
than 10 kt elsewhere. Seas 3 ft. 
.TONIGHT...Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere,
NE winds less than 10 kt, increasing to 10 to 15 kt after
midnight. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft
elsewhere. 
.FRI...NE winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 5 ft elsewhere. 
.FRI NIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 

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

.TODAY...W winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...NW winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...NW winds less than 10 kt. Seas 6 to 9 ft. 
.FRI NIGHT...N winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 6 to 8 ft. 
.SAT...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 5 to 7 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 6 to 8 ft. 
.SUN...S winds less than 10 kt. Seas 6 to 8 ft. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.MON...E winds less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. 

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

.TODAY...E winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 
.FRI...E winds less than 10 kt. Seas 4 to 6 ft. 
.FRI NIGHT...NE 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. 
.SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front has reached the far southeastern
waters. The front is followed by fresh to strong W to NW winds E
of 75W. These winds will increase to strong to near gale-force 
as they shift to the northeast forecast waters by Fri afternoon. 
A significant swell event in the wake of the front is bringing 
seas of 12 to 19 ft to the waters N of 12N and E of 65W and also 
N of 26N between 65W and 73W. Looking ahead, the next cold front 
is forecast to move off the southeastern U.S. coast by Fri 
afternoon, bringing strong to near gale force winds to waters 
east of Florida. This system will move eastward across the area 
during the weekend, with minimal gale-force winds possible ahead 
of the front. 

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

.TODAY...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...E winds less than 10 kt. Seas 5 to 7 ft. 
.FRI...SW winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...W winds 15 to 25 kt. Seas 7 to 10 ft. 
.SAT...NW winds 10 to 20 kt. Seas 7 to 10 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.SUN...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN NIGHT...S winds 15 to 25 kt. Seas 6 to 9 ft. 
.MON...W winds 15 to 25 kt. Seas 8 to 11 ft. 
.MON NIGHT...NW winds 10 to 15 kt. Seas 8 to 11 ft. 

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

...GALE CONDITIONS POSSIBLE SAT AND SAT NIGHT BETWEEN 65W AND 70W...

.TODAY...N winds 15 to 25 kt. Seas 8 to 13 ft W of 70W, and
11 to 14 ft elsewhere. 
.TONIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 8 to 13 ft. 
.FRI...W of 70W, N winds less than 10 kt, shifting to W in the
afternoon. Elsewhere, NW winds 10 to 20 kt. Seas 8 to 11 ft W of
70W, and 10 to 14 ft elsewhere. 
.FRI NIGHT...W of 70W, SW winds 15 to 25 kt. Elsewhere, NW winds
less than 10 kt, becoming SW 10 to 20 kt after midnight. Seas
8 to 11 ft W of 70W, and 9 to 12 ft elsewhere. 
.SAT...Between 67W and 70W, SW winds 20 to 30 kt increasing to 
30 to 35 kt in the afternoon. Between 67W and 65W, SW winds 15 
to 20 kt increasing to 25 to 30 kt in the afternoon. Seas 8 to 
12 ft in NE swell, building to 10 to 13 ft in the afternoon. W of
67W, SW to W winds 20 to 30 kt except W to NW winds 20 to 25 kt 
between 74W and 77W. Seas 9 to 13 ft, except 8 to 11 ft between 
74W and 77W.
.SAT NIGHT...Between 65W and 67W, SW winds 25 to 35 kt. Seas 9 
to 14 ft. Between 67W and 70W, W to NW winds 20 to 30 kt. Seas
9 to 14 ft. Between 70W and 77W, NW winds 20 to 25 kt. Seas 8 to
12 ft.
.SUN...NW winds 15 to 25 kt. Seas 10 to 15 ft. 
.SUN NIGHT...NW winds 10 to 15 kt, shifting to SW late.
.MON...SW winds 15 to 25 kt. Seas 9 to 12 ft. 
.MON NIGHT...SW winds 10 to 20 kt. Seas 8 to 12 ft. 

Bahamas N of 22N

.TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E to SE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...SE to S winds less than 10 kt. Seas 3 to 5 ft.
.SAT...W winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...NE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 
.MON...SW winds less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...SW winds less than 10 kt. Seas 3 to 5 ft. 

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

.TODAY...N winds 10 to 20 kt. Seas 8 to 13 ft. 
.TONIGHT...N winds 10 to 20 kt W of 70W, and N 15 to 20 kt
elsewhere. Seas 9 to 11 ft. 
.FRI...W of 70W, N winds 10 to 15 kt in the morning, becoming
variable winds less than 10 kt. Elsewhere, N winds 10 to 15 kt.
Seas 8 to 11 ft. 
.FRI NIGHT...W of 70W, Variable winds less than 10 kt, becoming
S 10 to 15 kt late. Elsewhere, N winds less than 10 kt, shifting
to SE late. Seas 8 to 11 ft. 
.SAT...SW winds 15 to 25 kt. Seas 8 to 10 ft. 
.SAT NIGHT...W winds 10 to 20 kt. Seas 8 to 11 ft. 
.SUN...NW winds 10 to 20 kt. Seas 8 to 11 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 7 to 10 ft. 
.MON...S winds less than 10 kt. Seas 8 to 11 ft. 
.MON NIGHT...S winds 10 to 15 kt. Seas 7 to 9 ft.

ATLC waters S of 22N W of 65W

.TODAY...N winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...N winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.SAT...S winds less than 10 kt. Seas 5 to 7 ft. 
.SAT NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt late. Seas 5 to 7 ft. 
.SUN...NW winds less than 10 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.MON...E winds less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds less than 10 kt. Seas 5 to 7 ft. 

ATLC waters from 19N to 22N between 55W and 65W

.TODAY...NW winds 10 to 20 kt. Seas 8 to 12 ft. 
.TONIGHT...NW winds 10 to 15 kt. Seas 10 to 12 ft. 
.FRI...NW winds 10 to 15 kt. Seas 9 to 11 ft. 
.FRI NIGHT...N winds 10 kt. Seas 9 to 11 ft. 
.SAT...E winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 9 to 11 ft. 
.SAT NIGHT...S winds less than 10 kt. Seas 8 to 10 ft. 
.SUN...SW winds 10 to 15 kt. Seas 7 to 9 ft. 
.SUN NIGHT...W winds less than 10 kt. Seas 5 to 7 ft.
.MON...W winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 6 to 9 ft. 
.MON NIGHT...Variable winds less than 10 kt. Seas 7 to 10 ft.