Offshore Forecast
Issued by NWS

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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZNT31 KNHC 241502
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1102 AM EDT Tue Apr 24 2018

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 22N between 55W and 64W, the SW N Atlantic S of
31N W of 65W including 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 ATLC from 07N to 19N
between 55W and 64W

.SYNOPSIS...Winds will pulse to fresh to strong over the central
Caribbean during the overnight hours. Elsewhere, gentle to
moderate winds will prevail.

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 ft.
.WED...E winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.THU...SE winds less than 10 kt. Seas 3 ft.
.THU NIGHT...E 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 less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and Variable
less than 10 kt elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or
less elsewhere.
.TONIGHT...E winds 10 to 15 kt S of 18N, and Variable less than
10 kt elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less
elsewhere.
.WED...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.
.WED 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.
.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.
.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.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...NE winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft.
.WED...E winds 15 to 25 kt within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 6 to 8 ft.
.WED NIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.FRI...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 5 ft.
.SAT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 15 to 20 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 4 to 5 ft.
.TONIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 5 to 7 ft elsewhere.
.WED NIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 20 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT 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 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...E 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.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...A cold front extending from 31N80W to central
Florida
will reach from 31N70W to the straits of Florida Thu where it
will stall and dissipate. A second cold front will move into the
NW waters Fri night.

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

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 6 to 9 ft.
.TONIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft.
.WED...W winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...W winds 10 to 15 kt, shifting to SW after midnight.
Seas 4 to 6 ft.
.THU...SW winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...SW winds less than 10 kt, shifting to S after
midnight. Seas 3 to 4 ft.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...W winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...N winds less than 10 kt. Seas 3 ft.

ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W

.THIS AFTERNOON...SE winds 15 to 20 kt. Seas 8 to 11 ft W of
70W, and 6 to 7 ft elsewhere.
.TONIGHT...SE winds 10 to 20 kt. Seas 7 to 10 ft.
.WED...S winds 10 to 20 kt. Seas 6 to 9 ft.
.WED NIGHT...W of 70W, SW winds 10 to 15 kt, shifting to W after
midnight. Elsewhere, S winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...SW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft.
.THU NIGHT...S winds less than 10 kt. Seas 4 to 5 ft.
.FRI...S winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 4 to 5 ft.

Bahamas N of 22N

.THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.WED...SW winds less than 10 kt. Seas 3 ft.
.WED NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.THU...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 2 ft or less.
.THU NIGHT...Variable winds less than 10 kt, becoming S less
than 10 kt after midnight. 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.
.SAT...SW winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...Variable winds less than 10 kt, becoming NE less
than 10 kt after midnight. Seas 2 ft or less.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 6 ft.
.THU...S winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.FRI...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...SE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 4 to 6 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 ft.
.THU...E winds 10 to 15 kt. Seas 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.


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