Offshore Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
428
FZNT31 KNHC 100314
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1114 PM EDT Thu Oct 9 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...Tropical Storm Jerry is near 18.2N 61.6W at 11 PM
EDT, and is moving northwest at 15 kt. Maximum sustained winds
are 50 kt with gusts to 60 kt, and the minimum central pressure
is 1005 mb. Jerry will move to 19.7N 62.5W Fri morning, 22.1N
63.1W Fri evening, 24.5N 63.1W Sat morning, 27.1N 62.8W Sat
evening, strengthen to a hurricane near 29.5N 62.2W Sun morning,
and move north of our waters Sun evening. Fresh to strong
southerly winds will impact the Leeward Islands and the far NE
Caribbean on Fri. Large E swell will continue to propagate
across the Caribbean passages of the Leeward Islands through
Fri, and then NE swell are expected to reach the Anegada Passage
early Fri through Sat. High pressure will begin to build from
the central Atlantic to the Bahamas late Sun and Mon to bring a
return to easterly trade winds across the eastern Caribbean.

NW Caribbean W of 85W

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 ft.
.FRI...W winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 3 ft.
.SAT...NW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft.
.SUN...NW winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...N winds less than 10 kt, shifting to E after
midnight. Seas 3 ft.
.MON...NE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.TUE...NE winds 10 to 15 kt. Seas 3 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds less than 10 kt S of 18N, and SE 10 to
15 kt elsewhere. Seas 2 ft or less.
.FRI...SE winds less than 10 kt S of 18N, and S 10 to 20 kt
elsewhere. Seas 2 ft or less.
.FRI NIGHT...S of 18N, S winds less than 10 kt in the evening,
becoming variable winds less than 10 kt. Elsewhere, SW winds
10 to 20 kt. Seas 2 ft or less.
.SAT...S of 18N, S winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Elsewhere, SW winds 10 to 20 kt. Seas
2 ft or less.
.SAT NIGHT...S of 18N, S winds 10 to 15 kt, diminishing to less
than 10 kt after midnight. Elsewhere, SW winds 10 to 20 kt. Seas
3 ft in the evening, subsiding to 2 ft or less.
.SUN...S of 18N, S winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Elsewhere, SW winds 10 to 15 kt. Seas
2 ft or less.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.MON...E winds 10 to 15 kt. Seas 3 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 3 ft.
.TUE...E winds 10 to 20 kt. Seas 3 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...E winds less than 10 kt. Seas 2 ft or less.
.FRI...E winds less than 10 kt, shifting to SE in the afternoon.
Seas 2 ft or less.
.FRI NIGHT...Within 90 nm of coast of Colombia, W winds less
than 10 kt, increasing to 10 to 15 kt after midnight. Elsewhere,
S winds 10 to 15 kt. Seas 2 ft or less.
.SAT...S winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft
in the afternoon.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 ft.
.SUN...SW winds 10 to 20 kt. Seas 3 to 4 ft.
.SUN NIGHT...Within 90 nm of coast of Colombia, SW winds 10 to
15 kt, diminishing to less than 10 kt after midnight. Elsewhere,
S winds 10 to 20 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt within 90 nm of coast of
Colombia, and S 10 to 15 kt elsewhere. Seas 3 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.TUE...SE winds 10 to 15 kt. Seas 2 ft or less.

SW Caribbean S of 11N

.OVERNIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.
.FRI...SW winds 10 to 15 kt. Seas 2 ft or less.
.FRI NIGHT...SW winds 10 to 20 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.SAT...SW winds 10 to 20 kt. Seas 3 ft.
.SAT NIGHT...SW winds 15 to 25 kt. Seas 3 to 4 ft.
.SUN...S winds 10 to 20 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds 10 to 20 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.MON...S winds 10 to 15 kt. Seas 2 ft or less.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less.
.TUE...S winds 10 to 15 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.OVERNIGHT...Gulf of Venezuela, NE 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, building to 3 ft after midnight.
.FRI...Gulf of Venezuela, E winds 10 to 15 kt, shifting to SW in
the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 2 ft or
less Gulf of Venezuela, and 3 to 4 ft elsewhere.
.FRI NIGHT...Gulf of Venezuela, N winds less than 10 kt,
shifting to S after midnight. Elsewhere, SE winds 10 to 20 kt.
Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere.
.SAT...W winds less than 10 kt Gulf of Venezuela, and SE 10 to
20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to
5 ft elsewhere.
.SAT NIGHT...Gulf of Venezuela, NW winds 10 to 15 kt, shifting
to N after midnight. Elsewhere, SE winds 10 to 20 kt. Seas 2 ft
or less Gulf of Venezuela, and 3 to 5 ft elsewhere.
.SUN...SW winds less than 10 kt Gulf of Venezuela, and SE 10 to
15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.SUN NIGHT...Gulf of Venezuela, W winds less than 10 kt in the
evening, becoming variable winds less than 10 kt. Elsewhere, E
winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.MON...Variable winds less than 10 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 ft elsewhere.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.TUE...NE winds less than 10 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 ft.

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

...TROPICAL STORM WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS. SE winds 40 to 50 kt.
Seas 12 to 17 ft.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. SE winds 40 to
50 kt, diminishing to 20 to 30 kt in the afternoon. Seas 9 to
14 ft.
.FRI NIGHT...SE winds 20 to 30 kt. Seas 8 to 11 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...E 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 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 3 to 5 ft.
.TUE...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...SE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...E winds 15 to 25 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 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 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tropical Storm Jerry is near 18.2N 61.6W at 11 PM
EDT, and is moving northwest at 15 kt. Maximum sustained winds
are 50 kt with gusts to 60 kt, and the minimum central pressure
is 1005 mb. Jerry will move to 19.7N 62.5W Fri morning, 22.1N
63.1W Fri evening, 24.5N 63.1W Sat morning, 27.1N 62.8W Sat
evening, strengthen to a hurricane near 29.5N 62.2W Sun morning,
and move north of our waters Sun evening. An extratropical low
pressure system is expected to develop offshore of north-central
Florida by Sat and move northeastward through the weekend. Fresh
to strong E winds are expected to occur north of a frontal
boundary near 30N starting tonight. A frontal trough will
develop W of the low on Sat across the extreme NW waters and
north Florida, producing fresh to strong N to NE winds and
building seas across the Florida coastal waters north of the NW
Bahamas from Sat through Sun morning.

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

.OVERNIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI...E winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 20 kt, shifting to NW 15 to 25 kt in the
afternoon. Seas 6 to 9 ft.
.SAT NIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN...NW winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft.
.MON...NW winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...N winds 10 to 15 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...E winds 15 to 25 kt W of 70W, and E 20 to 30 kt
elsewhere. Seas 6 to 9 ft.
.FRI NIGHT...E winds 15 to 25 kt W of 70W, and E 20 to 30 kt
elsewhere. Seas 7 to 10 ft, building to 8 to 13 ft after
midnight.
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. S winds 15 to 25 kt
W of 70W, and E 20 to 30 kt elsewhere. Seas 8 to 12 ft W of 70W,
and 10 to 14 ft elsewhere.
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 10 to
20 kt W of 70W, and S 20 to 30 kt elsewhere. Seas 8 to 11 ft W
of 70W, and 10 to 14 ft elsewhere.
.SUN...TROPICAL STORM CONDITIONS POSSIBLE.
.SUN NIGHT...SW winds 10 to 20 kt. Seas 7 to 10 ft.
.MON...SW winds 10 to 15 kt. Seas 6 to 8 ft.
.MON NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...W winds 10 to 15 kt. Seas 5 to 6 ft.

Bahamas N of 22N

.OVERNIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.FRI...SE winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft
in the afternoon.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 ft.
.SAT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...S winds 10 to 15 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 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.TUE...NE winds 10 to 15 kt. Seas 3 ft.

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft.
.FRI...E winds 10 to 20 kt W of 70W, and E less than 10 kt
elsewhere. Seas 4 to 6 ft W of 70W, and 6 to 9 ft elsewhere.
.FRI NIGHT...W of 70W, SE winds 10 to 15 kt, shifting to S after
midnight. Elsewhere, NE winds 10 to 15 kt, becoming S 20 to
30 kt after midnight. Seas 5 to 7 ft W of 70W, and 8 to 11 ft
elsewhere.
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 10 to 20 kt
W of 70W, and SW 20 to 30 kt elsewhere. Seas 7 to 10 ft W of
70W, and 8 to 13 ft elsewhere.
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W of 70W, S
winds 10 to 20 kt. Elsewhere, SW winds 20 to 30 kt, diminishing
to 10 to 15 kt after midnight. Seas 8 to 11 ft.
.SUN...S winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft.
.MON...S winds 10 to 15 kt. Seas 5 to 6 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.TUE...S winds 10 to 15 kt. Seas 4 to 5 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI...Variable winds less than 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...SW winds less than 10 kt. Seas 6 to 8 ft.
.SAT...S winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 4 to 6 ft.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft.

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

...TROPICAL STORM WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS. SE winds 35 to 45 kt.
Seas 11 to 16 ft.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. SE winds 40 to
50 kt. Seas 13 to 18 ft.
.FRI NIGHT...TROPICAL STORM CONDITIONS EXPECTED. S winds 40 to
50 kt, diminishing to 30 to 40 kt after midnight. Seas 12 to
17 ft, subsiding to 9 to 14 ft after midnight.
.SAT...S winds 20 to 30 kt, becoming SE 10 to 20 kt in the
afternoon. Seas 8 to 11 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 7 to 10 ft.
.SUN...E winds 10 to 15 kt. Seas 6 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft.