Offshore Forecast
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000
FZNT31 KNHC 180805
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
405 AM EDT Wed Oct 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...A tropical wave will move W across Central America
today with fresh to locally strong trades across the Caribbean E
of this wave. A second tropical wave along 67W and will continue
W accompanied TSTMS. A third tropical wave accompanied by strong
TSTMS will pass W through the Windwards today with strong E
trades and building seas spreading W across the Caribbean E of
73W by sunrise on Thu. These strong conditions will shift
further W and extend across the Central Caribbean beginning on
Fri and persisting well into next week.

NW Caribbean W of 85W

.TODAY...NE winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...Variable winds less than 10 kt, becoming NE less than
10 kt after midnight. Seas 2 ft or less.
.THU...E winds less than 10 kt. Seas 3 ft.
.THU NIGHT...E winds less than 10 kt. Seas 2 ft or less,
building to 3 to 4 ft after midnight.
.FRI...NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SAT...E winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 3 to 4 ft elsewhere.
.TONIGHT...E winds 10 to 15 kt S of 18N, and NE less than 10 kt
elsewhere. S of 18N, seas 4 to 6 ft. Elsewhere, seas 3 ft in the
evening, subsiding to 2 ft or less.
.THU...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. S of 18N, seas 5 to 7 ft. Elsewhere, seas 2 ft or
less, building to 3 ft in the afternoon.
.THU NIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 5 to 7 ft S of 18N, and 3 ft elsewhere.
.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.
.SAT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...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 6 to 8 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SAT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN...E winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.

SW Caribbean S of 11N

.TODAY...NE winds less than 10 kt, shifting to W in the
afternoon. Seas 3 to 5 ft.
.TONIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.THU...SW winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.SAT...W winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 4 to 6 ft.
.SUN...Variable winds less than 10 kt, becoming SW less than
10 kt in the afternoon. Seas 4 to 6 ft.
.SUN NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 4 to 6 ft.

Caribbean between 64W and 72W

.TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft Gulf of Venezuela,
and 6 to 8 ft elsewhere.
.TONIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of
Venezuela, and 6 to 9 ft elsewhere.
.THU...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt
elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 9 ft
elsewhere.
.THU NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of
Venezuela, and 7 to 10 ft elsewhere.
.FRI...E winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft.
.SAT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN...E winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.

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

.TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 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 6 to 8 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN 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

.TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...A trough will continue between 68W and 73W. A cold
front extending from 31N70W to SE Florida merge with trough
tonight, becoming stationary from 31N67W to the NW Bahamas to
the Florida Straits. The front will drift W with a surface low
developing along the front near 31N71W early Thu. The low will
move NE dragging the front E again to a position from Bermuda to
the Central Bahamas early Fri, stalling again on Sat, and
dissipating on Sun as fresh SE return sets up across the waters N
of 23N W of 72W.

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

.TODAY...NE winds 15 to 25 kt. Seas 8 to 11 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.THU...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...NE winds 10 to 20 kt. Seas 7 to 8 ft.
.FRI NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft.
.SAT...E winds 15 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.

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

.TODAY...E winds 10 to 15 kt W of 70W, and E less than 10 kt
elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 6 ft elsewhere.
.TONIGHT...E winds 10 to 15 kt W of 70W, and SE less than 10 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere.
.THU...W of 70W, NE winds less than 10 kt. Elsewhere, S winds
less than 10 kt, shifting to SW in the afternoon. Seas 6 to 9 ft
W of 70W, and 5 to 6 ft elsewhere.
.THU NIGHT...W of 70W, NE winds 10 to 15 kt. Elsewhere, SW winds
10 to 15 kt, diminishing to less than 10 kt after midnight. Seas
6 to 8 ft.
.FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 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.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.

Bahamas N of 22N

.TODAY...E winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.THU...E winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 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 20 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.

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

.TODAY...W of 70W, E winds less than 10 kt. Elsewhere, SE winds
less than 10 kt, increasing to 10 to 15 kt in the afternoon.
Seas 5 to 6 ft.
.TONIGHT...SE winds less than 10 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 5 to 6 ft.
.THU...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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.
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.

ATLC waters S of 22N W of 65W

.TODAY...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 6 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft.

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

.TODAY...SE winds 10 to 20 kt. Seas 7 to 8 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 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.
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.



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