Offshore Forecast
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000
FZNT31 KNHC 180840
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
340 AM EST Mon Dec 18 2017

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...Gale force winds are expected at night along the NE
coast of Colombia through Tue night, and strong to near gale
each night thereafter this week. Fresh to strong NE to E winds
will occur over the lee of Cuba and across the Windward Passage
through Tue. On Wed, these winds will become confined from the
Windward Passage to Jamaica before diminishing Wed night into
Thursday.

NW Caribbean W of 85W

.TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.THU...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 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 4 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 8 to 11 ft S of 18N, and 5 to 7 ft elsewhere.
.TONIGHT...E winds 15 to 25 kt S of 18N, and NE 10 to 20 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere.
.TUE...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and
4 to 6 ft elsewhere.
.WED...E winds 10 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...E winds 10 to 20 kt. 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 6 to 8 ft.

Caribbean from 11N to 15N W of 72W

...GALE WARNING...

.TODAY...E winds 20 to 30 kt. Seas 9 to 14 ft.
.TONIGHT...E winds 25 to 35 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 13 ft.
.TUE...E winds 20 to 30 kt within 90 nm of coast of Colombia,
and E 15 to 25 kt elsewhere. Seas 8 to 13 ft.
.TUE NIGHT...E winds 25 to 35 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 13 ft.
.WED...E winds 15 to 25 kt. Seas 8 to 11 ft.
.WED NIGHT...NE winds 20 to 30 kt. Seas 8 to 11 ft.
.THU...E winds 15 to 25 kt. Seas 8 to 11 ft.
.THU NIGHT...E winds 20 to 30 kt. Seas 7 to 10 ft.
.FRI...E winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI NIGHT...E winds 20 to 30 kt. Seas 8 to 11 ft.

SW Caribbean S of 11N

.TODAY...NE winds 15 to 25 kt. Seas 8 to 13 ft.
.TONIGHT...NE winds 15 to 25 kt. Seas 8 to 13 ft.
.TUE...NE winds 10 to 20 kt. Seas 8 to 13 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft.
.WED...NE winds 10 to 20 kt. Seas 8 to 11 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.THU...NE winds 10 to 20 kt. Seas 8 to 11 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.

Caribbean between 64W and 72W

.TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft Gulf of Venezuela,
and 6 to 9 ft elsewhere.
.TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 6 to 8 ft.
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 6 to 8 ft elsewhere.
.TUE NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 5 to 7 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 20 kt. 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 6 to 8 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...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 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...NE winds 10 to 20 kt. Seas 5 to 7 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 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 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 5 to 7 ft.
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE 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 22N65W to 21N70W will
dissipate this morning. A ridge centered just E of central
Florida through Tue night will weaken and shift SE through Wed
as the southern portion of a cold front quickly moves W to E, N
of 29N. The ridge will set up along 25N on Thursday as low pres
moves off the SE United States coast, with another cold front
dropping S to near 29N. Fresh to strong SW winds will precede the
cold front.

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

.TODAY...SW winds less than 10 kt. Seas 3 ft.
.TONIGHT...S winds less than 10 kt, shifting to SW after
midnight. Seas 3 ft.
.TUE...W winds 10 to 15 kt, shifting to NW in the afternoon.
Seas 3 ft.
.TUE NIGHT...NW winds less than 10 kt, shifting to SW after
midnight. Seas 3 ft.
.WED...SW winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 4 ft.
.WED NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.FRI...Variable winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE winds 10 kt. Seas 4 to 5 ft.

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

.TODAY...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 4 to 6 ft.
.TONIGHT...SW winds less than 10 kt, shifting to W after
midnight. Seas 3 to 5 ft.
.TUE...W winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...W winds less than 10 kt W of 70W, and W 10 to 15 kt
elsewhere. Seas 4 to 6 ft.
.WED...W winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...W winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

Bahamas N of 22N

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 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...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 3 ft.
.THU...E winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.FRI...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft
in the afternoon.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft.

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

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 4 to 6 ft.
.WED...E winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU...S winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.FRI...NE winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.

ATLC waters S of 22N W of 65W

.TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 20 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 3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 5 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...NE winds 10 to 15 kt. Seas 6 to 7 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 6 to 7 ft.
.TUE...NE winds 10 to 15 kt. Seas 6 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 6 to 7 ft.
.WED...NE winds 10 to 15 kt. Seas 6 ft.
.WED NIGHT...NE 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 4 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 6 ft.



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