134
FZNT31 KNHC 201451
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
951 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 fresh trade winds will occur over the
basin into next week as low pressure anchors over the south-
central Caribbean and high pressure prevails north of the region.
Pulsing strong winds and locally rough seas are expected
offshore of northern Colombia each night and morning Sat into
next week.

NW Caribbean W of 85W

.TODAY...E winds 10 to 20 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 4 to 6 ft.
.TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 20 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 3 to 5 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 6 to 8 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 7 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 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 15 to 25 kt. Seas 5 to 7 ft.
.SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft.
.MON...E winds 10 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...NE winds 15 to 25 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 6 to 8 ft.
.TONIGHT...NE winds less than 10 kt. Seas 5 to 7 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 4 to 6 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. Seas 4 to 5 ft.
.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 4 to 5 ft.
.FRI...E winds 10 to 20 kt. Gulf of Venezuela, seas 3 ft in the
morning, subsiding to 2 ft or less. Elsewhere, seas 3 to 5 ft.
.FRI NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 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 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 20 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 5 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 5 to 7 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 4 to 6 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 fresh NE winds will occur north of the
Greater Antilles and through the southern and central Bahamas
into early Sat as high pressure prevails to the north and low
pressure anchors over the south-central Caribbean. Elsewhere,
moderate to locally fresh W to SW winds are expected north of 29N
and west of 65W, including offshore of northern Florida, by Sat
as a cold front moves off the east coast of the U.S. The front is
slated to enter the northern waters on Sun, leading to moderate
N to NE winds and building seas in the wake of the front.

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,
building to 3 ft after midnight.
.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,
building to 3 ft after midnight.
.SAT...W winds less than 10 kt, increasing to 10 to 20 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 to 15 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 5 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 10 to 15 kt in
the afternoon. Seas 3 ft.
.SAT NIGHT...W winds 10 to 15 kt. 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 4 to 5 ft.

Bahamas N of 22N

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