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 29 30 31
000
FZNT31 KNHC 121344
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
944 AM EDT Fri Apr 12 2024

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...Gale-force winds will pulse off the northern coast of
Colombia at night through the weekend. A cold front in the NW
Caribbean has stalled from western Cuba to the Gulf of Honduras
where it will gradually dissipate through Sat. Some rough seas
are possible near the Yucatan Channel through Sat. High pressure
will build in as the front washes out with moderate to locally
fresh winds and moderate seas across much of the basin, locally
strong near the Windward Passage and Lee of Cuba.

NW Caribbean W of 85W

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...NE 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 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 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 20 kt S of 18N, and NE less than
10 kt elsewhere. Seas 5 to 7 ft.
.TONIGHT...S of 18N, NE winds 10 to 20 kt. Elsewhere, NE winds
less than 10 kt, increasing to 10 to 15 kt after midnight.
Seas 4 to 6 ft.
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...NE winds 10 to 20 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.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

...GALE WARNING...

.THIS AFTERNOON...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 15 to 25 kt elsewhere. Seas 7 to 10 ft.
.TONIGHT...NE winds 25 to 35 kt within 90 nm of coast of
Colombia, and NE 15 to 25 kt elsewhere. Seas 7 to 11 ft.
.SAT...E winds 20 to 30 kt within 90 nm of coast of Colombia,
and NE 10 to 20 kt elsewhere. Seas 7 to 10 ft.
.SAT NIGHT...NE winds 25 to 35 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 7 to 11 ft.
.SUN...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.SUN NIGHT...NE winds 25 to 35 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft.
.MON...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...NE winds 20 to 30 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 10 ft.
.TUE...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...NE winds 20 to 30 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.TONIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft.
.SAT...NE winds 15 to 25 kt. Seas 8 to 11 ft.
.SAT NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft.
.SUN...N winds 10 to 20 kt. Seas 7 to 10 ft.
.SUN NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft.
.MON...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 15 to 25 kt Gulf of Venezuela, and
E 10 to 20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and
5 to 7 ft elsewhere.
.TONIGHT...NE winds 20 to 30 kt Gulf of Venezuela, and
E 10 to 20 kt elsewhere. Seas 5 to 7 ft.
.SAT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt
elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft
elsewhere.
.SAT NIGHT...NE winds 20 to 25 kt Gulf of Venezuela, and
E 10 to 20 kt elsewhere. Seas 5 to 7 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...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 20 kt. Seas 5 to 7 ft.

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

.THIS AFTERNOON...E winds 15 to 25 kt. Seas 7 to 10 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 15 kt. Seas 6 to 9 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft.
.SUN...E winds 10 to 15 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extending from 31N75W to just SE of the
Straits of Florida will reach from 31N68W to central Cuba early
Sat while weakening, then from 31N61W to eastern Cuba early Sun
where it will stall and gradually dissipate. Strong to near gale-
force winds near the front N of 29N early today will diminish
through tonight. Rough seas will accompany these winds. High
pressure will build in the wake of the front through early next
week with more tranquil marine conditions expected.

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

.THIS AFTERNOON...NW winds 10 to 20 kt. Seas 7 to 10 ft.
.TONIGHT...W winds 15 to 25 kt. Seas 6 to 9 ft.
.SAT...NW winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...N winds 10 kt, becoming E less than 10 kt in the
afternoon. Seas 3 to 5 ft.
.SUN NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.MON...S winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...S winds 15 to 25 kt. Seas 8 to 11 ft W of 70W,
and 6 to 8 ft elsewhere.
.TONIGHT...SW winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT...W winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT NIGHT...NW winds 10 to 15 kt. Seas 6 to 9 ft.
.SUN...N winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 6 to 8 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.MON...E winds less than 10 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...NE 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 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 6 to 8 ft.
.TONIGHT...S winds less than 10 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 6 to 8 ft.
.SAT...SE winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT NIGHT...NE winds 10 to 15 kt W of 70W, and E less than
10 kt elsewhere. Seas 6 to 7 ft.
.SUN...NE winds 10 to 15 kt. Seas 6 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...E 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 10 to 15 kt. Seas 5 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...E 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 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

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

.THIS AFTERNOON...E winds 15 to 20 kt. Seas 9 to 10 ft.
.TONIGHT...E winds 15 to 20 kt. Seas 8 to 10 ft.
.SAT...E winds 10 to 20 kt. Seas 8 to 10 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 8 to 10 ft.
.SUN...E winds 10 to 15 kt. Seas 7 to 9 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft.
.MON...E winds 10 to 15 kt. Seas 7 to 9 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.
.TUE...E winds 10 to 15 kt. Seas 7 to 8 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 8 ft.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.