568
FZNT31 KNHC 200805
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
305 AM EST Thu Nov 20 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...Moderate to occasionally fresh E to NE winds are
expected over the Caribbean into the start of next week as a
moderate pressure gradient prevails between high pressure to the
north and low pressure in the south-central basin. Locally
strong winds and rough seas will pulse offshore of Colombia
starting this weekend.

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...E 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 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...NE 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, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.TONIGHT...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 15 kt. Seas 3 to 5 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...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 5 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...E winds 15 to 20 kt within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft.
.SAT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.MON...E winds 10 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.

SW Caribbean S of 11N

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

Caribbean between 64W and 72W

.TODAY...E winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft in
the morning, subsiding to 2 ft or less. Elsewhere, seas 4 to
5 ft.
.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 5 ft elsewhere.
.FRI NIGHT...E 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 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 20 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 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

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

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

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

.TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 6 ft.
.FRI...E winds less than 10 kt. Seas 4 to 6 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 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 15 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Moderate to occasionally fresh NE winds are expected
north of Hispaniola and Cuba and into the Bahamas through Fri as
high pressure prevails over the southeastern U.S. Moderate or
weaker winds and slight to moderate seas are expected elsewhere
into the weekend. Increasing SW winds and building seas may
occur offshore of northern Florida this weekend ahead of a cold
front moving off the southeastern U.S.

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

.TODAY...NW winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 2 ft or less.
.TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.SAT...W winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft.
.SAT NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...NW winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...N winds 10 kt. Seas 3 to 4 ft.
.MON...NE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 kt. Seas 3 to 4 ft.

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

.TODAY...N winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...N winds less than 10 kt. Seas 3 to 4 ft.
.FRI...N winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...N winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 ft.
.SAT...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 3 ft.
.SAT NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SUN...W winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.MON...NE winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...NE winds 10 kt. Seas 3 to 5 ft.

Bahamas N of 22N

.TODAY...NE winds 10 to 15 kt. Seas 3 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft.
.FRI...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or
less.
.FRI NIGHT...NE winds 10 to 15 kt, shifting to E after midnight.
Seas 2 ft or less.
.SAT...NE winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less.
.SUN...NE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less.
.MON...E winds 10 to 15 kt. Seas 2 ft or less.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less.

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

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

ATLC waters S of 22N W of 65W

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

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

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