National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZNT31 KNHC 220733
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
333 AM EDT Mon Apr 22 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...A broad subtropical ridge north of the Greater
Antilles will support moderate to locally fresh trades across the
central and eastern Caribbean, locally strong near the N coast of
Colombia and near the Gulf of Venezuela at times. Mainly gentle
to moderate trades will prevail elsewhere, pulsing to moderate to
fresh from the Lee of Cuba to the Windward Passage, and offshore
central Honduras at times. A decaying cold front may reach into
the Caribbean N of 19N tonight, possibly bringing a brief period
of active weather. Slight to moderate seas will prevail across the
basin.

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.THU...E 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 5 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 ft.
.TONIGHT...NE winds less than 10 kt. Seas 3 ft.
.TUE...S of 18N, NE winds less than 10 kt, shifting to E in the
afternoon. Elsewhere, NE winds 10 to 15 kt. Seas 2 ft or less.
.TUE NIGHT...S of 18N, E 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, building to 3 ft after midnight.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 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.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE winds 10 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft.
.WED...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.TONIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.TODAY...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 4 ft.
.TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.TUE...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. 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 4 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

.TODAY...E winds 10 to 15 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. Seas 5 to 7 ft.
.TUE NIGHT...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.

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

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 20 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.
.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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A broad ridge is over the western Atlantic ahead of
a cold front which extends from 31N79W to near Daytona Beach,
Florida. The front will reach from 31N73W to near Stuart, Florida
this evening, from just E of Bermuda to the SE Bahamas Tue
evening, then stalling and dissipating to a trough from near
31N59W to the Turks and Caicos Islands by Wed evening. Fresh to
strong winds and building seas will be near the front, mainly N
of 27N, increasing to gale speeds N of 29N late this afternoon
and spreading eastward through tonight. Winds will diminish below
gale late tonight. Seas will build to 14 ft with the strongest
winds. The remnant trough is forecast to linger through the
remainder of the week with mainly tranquil conditions for the end
of the week.

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

...GALE WARNING...

.TODAY...NW winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...N winds 15 to 25 kt, except 25 to 40 kt N of 29N W of
front. Seas 8 to 14 ft.
.TUE...NE winds 10 to 15 kt. Seas 8 to 11 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 6 to 8 ft.
.WED...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 5 to 6 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.THU...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

...GALE WARNING...

.TODAY...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...NW winds 15 to 25 kt W of 70W, except 25 to 40 kt N of
29N and W of front, and S 10 to 20 kt elsewhere. Seas 8 to 14 ft
W of front, and 5 to 7 ft elsewhere.
.TUE...NW winds 10 to 20 kt. Seas 8 to 11 ft W of 70W, and 6 to
9 ft elsewhere.
.TUE NIGHT...W of 70W, N winds 10 to 15 kt, diminishing to less
than 10 kt after midnight. Elsewhere, NW winds 10 to 20 kt.
Seas 7 to 10 ft.
.WED...N winds less than 10 kt. Seas 6 to 9 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft.
.THU...NE winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.FRI...NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.TODAY...S winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.TONIGHT...NW winds less than 10 kt, shifting to NE after
midnight. Seas 2 ft or less, building to 3 ft after midnight.
.TUE...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft.

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

.TODAY...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.TONIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.TUE...N winds 10 to 15 kt W of 70W, and S less than 10 kt
elsewhere. Seas 5 to 7 ft.
.TUE NIGHT...W of 70W, NE winds 10 to 15 kt. Elsewhere, N winds
less than 10 kt, shifting to NE after midnight. 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 6 to 7 ft.
.THU...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 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 20 kt. Seas 4 to 6 ft.

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

.TODAY...E winds 10 to 15 kt. Seas 5 to 6 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 6 ft.
.FRI...E winds 10 to 15 kt. Seas 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.