373
FZNT31 KNHC 170907
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
407 AM EST Mon Nov 17 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 weak pressure gradient over the area will
generally maintain gentle to moderate trade winds across the
basin into early Tue. The trade winds will then increase to
mostly fresh speeds as western Atlantic high pressure expands
southeastward toward the Greater Antilles while the Colombian
low becomes evident.

NW Caribbean W of 85W

.TODAY...NE winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.TUE...E winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 2 ft or less, building to 3 ft after
midnight.
.WED...E winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...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.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
2 ft or less.
.TUE...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds 10 to
15 kt, diminishing to less than 10 kt in the afternoon. Seas
3 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.THU...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...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 5 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 15 kt within 90 nm of coast of Colombia,
and E less than 10 kt elsewhere. Seas 3 ft.
.TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 4 ft.
.TUE...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.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NE winds 10 to 15 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.

SW Caribbean S of 11N

.TODAY...NE winds less than 10 kt. Seas 3 ft.
.TONIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...NE winds 10 to 15 kt, shifting to N in the afternoon.
Seas 4 to 6 ft.
.WED NIGHT...N winds 10 to 15 kt, shifting to NE after midnight.
Seas 4 to 6 ft.
.THU...N winds less than 10 kt. Seas 4 to 6 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.FRI...N winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.

Caribbean between 64W and 72W

.TODAY...NE winds 10 to 15 kt Gulf of Venezuela, and E less than
10 kt elsewhere. Seas 3 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E 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.

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

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft.
.WED NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.THU...E winds less than 10 kt. Seas 4 to 6 ft.
.THU NIGHT...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.

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

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 5 to 7 ft.
.THU...E winds less than 10 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front will enter NW waters the waters today,
then weaken and stall Tue from around 30N60W to the Turks and
Caicos. Strong SW winds and rough seas can be expected ahead of
the front N of 29N today, with some rough seas lingering behind
the front N of 28N over NE waters until the front dissipates Tue
night. High pressure sinking southward over the waters for the
latter half of the week should bring relatively benign
conditions.

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

.TODAY...NW winds 10 kt. Seas 3 to 5 ft.
.TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.TUE...E winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.WED...NE winds less than 10 kt. Seas 3 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 3 ft.
.THU...E winds less than 10 kt. Seas 3 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.FRI...SE winds 10 kt. Seas 3 ft.
.FRI NIGHT...SE winds 10 kt. Seas 3 ft in the evening, subsiding
to 2 ft or less.

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

.TODAY...NW winds 10 to 15 kt W of 70W, and W 15 to 25 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 8 to 11 ft elsewhere.
.TONIGHT...N winds less than 10 kt. Seas 5 to 7 ft W of 70W, and
7 to 10 ft elsewhere.
.TUE...NE winds 10 to 15 kt W of 70W, and NE less than 10 kt
elsewhere. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...NE winds less than 10 kt. Seas 4 to 6 ft.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 4 to 6 ft.
.THU...NE 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. Seas 3 to 5 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.

Bahamas N of 22N

.TODAY...Variable winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.TUE...E winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.WED...NE winds 10 to 15 kt. Seas 3 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 ft.
.THU...NE winds 10 to 15 kt. Seas 3 ft.
.THU NIGHT...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 ft.

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

.TODAY...Variable winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.
.TUE...NE winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...NE winds 10 kt. Seas 4 to 6 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft.

ATLC waters S of 22N W of 65W

.TODAY...Variable winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 ft.
.TUE...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. 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.

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

.TODAY...SE winds less than 10 kt. Seas 5 to 6 ft.
.TONIGHT...E winds less than 10 kt. Seas 5 to 6 ft.
.TUE...E winds 10 kt. Seas 5 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...NE winds 10 kt. Seas 6 ft.
.THU...NE winds less than 10 kt. Seas 5 to 6 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 5 to 6 ft.
.FRI...N winds less than 10 kt. Seas 5 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 4 to 5 ft.