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
000
FZNT31 KNHC 251548
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1148 AM EDT Mon Mar 25 2024

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 Atlantic from
07N to 19N between 55W and 64W

.SYNOPSIS...A stationary front is dissipating from the Windward
Passage into the NE coast of Nicaragua. Expect fresh to strong E
to SE winds and rough seas over the northeast Caribbean through
Tue, ahead of the next frontal system to enter the Gulf of
Mexico. This next cold front will move through the Yucatan
Channel and into the NW Caribbean Thu night. Large N swell will
reach the Atlantic Passages of the NE and E Caribbean late Tue
and persist through early Thu before subsiding. Otherwise, winds
and seas will remain well below normal through Thu. Forecaster
Christensen

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft.
.TUE...SE winds 15 to 25 kt. Seas 6 to 9 ft.
.TUE NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.WED...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...SE winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 3 to 5 ft.
.THU NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...SE winds less than 10 kt S of 18N, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.TONIGHT...S of 18N, E winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, E winds 10 to 20 kt. Seas
4 to 6 ft.
.TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 15 kt, shifting to E after midnight.
Seas 3 to 5 ft.
.THU...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...NW winds less than 10 kt, shifting to N after
midnight. Seas 3 to 4 ft.
.FRI...N winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...SE winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 ft.
.WED...E winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 ft.
.THU...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 3 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 3 ft.
.FRI...NE winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 3 ft.
.TONIGHT...NE winds less than 10 kt. Seas 3 ft.
.TUE...SE winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.WED...E winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.THU...NE winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.
.FRI...N winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less
Gulf of Venezuela, and 4 to 5 ft elsewhere.
.TONIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and NE less
than 10 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 5 ft elsewhere.
.TUE...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere,
NE winds less than 10 kt, increasing to 10 to 15 kt after
midnight. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft
elsewhere.
.WED...NE winds 10 to 15 kt, shifting to N in the afternoon.
Seas 3 to 5 ft.
.WED NIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.THU...N winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.FRI...Variable winds less than 10 kt, becoming N less than
10 kt in the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.TUE...SE winds 10 to 15 kt, shifting to S in the afternoon.
Seas 4 to 6 ft.
.TUE NIGHT...SW winds less than 10 kt. Seas 4 to 6 ft.
.WED...SW winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 5 to 7 ft.
.WED NIGHT...W winds less than 10 kt. Seas 6 to 8 ft.
.THU...W winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 5 to 7 ft.
.THU NIGHT...W winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 5 to 7 ft.
.FRI...W winds less than 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...NW winds less than 10 kt. Seas 5 to 7 ft.

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

.THIS AFTERNOON...E winds less than 10 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, shifting to SE in the afternoon.
Seas 4 to 6 ft.
.TUE NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft.
.WED...SE winds less than 10 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.THU...S winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.FRI...S winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extends from 31N65W to 25N67W then
southwestward to northern Haiti. The front will move eastward
and
reach from 31N62W to W Hispaniola by this evening, then weaken
considerably as it moves E-SE across the regional Atlantic E of
60W and adjacent NE Caribbean waters through Tue night.
Associated low pressure NW of Bermuda will deepen today, then
begin to move slowly S-SE and weaken, crossing into the area
Atlantic waters Tue and gradually becoming stationary near
25N61W
on Thu, then dissipating. Strong N to NE winds and large NE to N
swell will continue to spread southward behind the front today
before a narrow high pressure ridge builds southward into the
Bahamas Mon night through Wed. Large NE swell will build
southward, W of 70W, through late today and persist through Wed
before gradually subsiding. Large NW to N swell will build
southward across the waters E of 70W through Tue, then slowly
subside Wed through Thu. Fresh to strong SE winds and large seas
will persist across the far NE waters through Thu.

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

.THIS AFTERNOON...E winds 15 to 20 kt. Seas 10 to 13 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 9 to 12 ft.
.TUE...SE winds 10 to 15 kt. Seas 8 to 11 ft.
.TUE NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 9 to 11 ft.
.WED...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 7 to 10 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft.
.THU...SW winds 10 to 20 kt. Seas 6 to 7 ft.
.THU NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI...N winds 15 to 25 kt. Seas 8 to 13 ft.
.FRI NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft.

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

.THIS AFTERNOON...N winds 10 to 20 kt. Seas 10 to 15 ft.
.TONIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 12 to 17 ft.
.TUE...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 12 to 17 ft.
.TUE NIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 10 to 15 ft.
.WED...N winds 10 to 20 kt. Seas 8 to 12 ft.
.WED NIGHT...N winds 10 to 15 kt. Seas 7 to 10 ft.
.THU...NE winds less than 10 kt, shifting to W in the afternoon.
Seas 6 to 9 ft.
.THU NIGHT...W winds 10 to 15 kt, increasing to 15 to 25 kt
after midnight. Seas 7 to 10 ft.
.FRI...NW winds 15 to 25 kt. Seas 9 to 14 ft.
.FRI NIGHT...NW winds 15 to 25 kt. Seas 11 to 16 ft.

Bahamas N of 22N

.THIS AFTERNOON...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...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 less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 5 to 7 ft.
.WED...E winds less than 10 kt. Seas 5 to 7 ft.
.WED NIGHT...NE winds less than 10 kt, shifting to E after
midnight. Seas 4 to 6 ft.
.THU...E winds less than 10 kt, shifting to SW in the afternoon.
Seas 3 to 5 ft.
.THU NIGHT...NW winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI...N winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.

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

.THIS AFTERNOON...N winds 10 to 15 kt. Seas 7 to 10 ft.
.TONIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft.
.TUE...N winds 10 to 15 kt. Seas 8 to 12 ft.
.TUE NIGHT...N winds 10 to 20 kt. Seas 9 to 13 ft.
.WED...NW winds 10 to 20 kt. Seas 9 to 12 ft.
.WED NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft.
.THU...N winds 10 to 15 kt, shifting to NW in the afternoon.
Seas 7 to 10 ft.
.THU NIGHT...NW winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI...NW winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...NW winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Seas 4 to 6 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 6 to 8 ft.
.TUE NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.WED...N winds less than 10 kt. Seas 6 to 8 ft.
.WED NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft.
.THU...NW winds 10 to 15 kt. Seas 6 to 8 ft.
.THU NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...NW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...S winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...W winds 10 to 15 kt. Seas 6 to 9 ft.
.WED...W winds 10 to 15 kt. Seas 7 to 9 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 7 to 9 ft.
.THU...W winds 10 to 15 kt. Seas 7 to 9 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 7 to 8 ft.
.FRI...W winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 6 to 7 ft.


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