375
FZNT31 KNHC 010316
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1116 PM EDT Sun Aug 31 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 tropical wave over the central Caribbean south of
Haiti will move westward and reach Jamaica Mon, and the Gulf of
Honduras Tue before moving west of the basin. Elsewhere, Atlantic
high pressure in combination with low pressure over northern
Colombia will support moderate to fresh trades along with moderate
seas across much of the central Caribbean through Fri. Locally
strong winds are expected to pulse at night off Colombia and the
Gulf of Venezuela. Otherwise, fresh to strong easterly winds will
pulse in the Gulf of Honduras tonight with moderate to fresh
winds prevailing the remainder forecast period.

NW Caribbean W of 85W

.OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...SE 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 ft.
.TUE...SE winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.WED...SE winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less.
.THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds 10 to 15 kt S of 18N, and NE less than
10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.MON...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.MON NIGHT...E winds 10 to 15 kt S of 18N, and Variable less
than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.TUE...E winds 10 to 15 kt S of 18N, and SE less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.THU...SE 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 to 4 ft.

Caribbean from 11N to 15N W of 72W

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

SW Caribbean S of 11N

.OVERNIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...NE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 5 to 7 ft.
.MON NIGHT...NW winds less than 10 kt. Seas 4 to 6 ft.
.TUE...SW winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.WED...NE winds less than 10 kt, shifting to SE in the
afternoon. Seas 3 to 4 ft.
.WED NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft.
.THU...SW winds less than 10 kt. Seas 3 ft.
.THU NIGHT...Variable winds less than 10 kt, becoming NW less
than 10 kt after midnight. Seas 3 ft.
.FRI...S winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...N winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 4 ft.
.MON...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 3 to 5 ft.
.MON NIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. 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...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 5 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.WED NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 4 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.

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

.OVERNIGHT...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.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 4 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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A stationary front extending across the western
Atlantic through 31N73W to near Cape Canaveral, Florida will
persist through Thu night. Expect fresh to strong winds with
moderate to rough seas north of the front through Mon night, and
scattered showers and thunderstorms lasting through Thu.
Elsewhere, the Atlantic ridge will dominate the pattern from the
central Atlantic through the Bahamas, supporting gentle to
moderate breezes and mostly moderate seas.

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

.OVERNIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.WED...NE winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 kt. Seas 3 to 5 ft.
.THU...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI...NW winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 ft.

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

.OVERNIGHT...SW winds less than 10 kt. Seas 4 to 6 ft W of 70W,
and 3 ft elsewhere.
.MON...SW winds less than 10 kt. Seas 4 to 6 ft.
.MON NIGHT...S winds less than 10 kt. Seas 3 to 5 ft.
.TUE...S winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...S winds less than 10 kt. Seas 3 to 5 ft.
.WED...S winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.THU...S winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.

Bahamas N of 22N

.OVERNIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.MON...SW winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.TUE...S winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.WED...SW winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.THU...SW winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.FRI...S winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less.

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

.OVERNIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 3 ft.
.MON...W of 70W, S winds less than 10 kt. Elsewhere, Variable
winds less than 10 kt, becoming S 10 kt in the afternoon. Seas
3 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 ft.
.TUE...S winds 10 kt. Seas 3 ft.
.TUE NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.WED...S winds 10 kt. Seas 3 to 4 ft.
.WED NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SE winds 10 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...SE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.
.TUE...SE winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...SE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.
.WED...SE winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt, shifting to SE after
midnight. Seas 3 ft.
.THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 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.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.TUE...E winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.WED...E winds 10 kt. Seas 4 ft.
.WED NIGHT...E winds 10 kt. Seas 4 ft.
.THU...E winds 10 kt. Seas 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 ft.
.FRI...E winds 10 to 15 kt. Seas 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.