Offshore Forecast
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000
FZNT31 KNHC 170236
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1036 PM EDT Wed Aug 16 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 strong and broad tropical wave ALONG 65W-66W will
move quickly across the eastern Caribbean through early Thu,
across the central Caribbean Thu through Fri afternoon, and the
western Caribbean Fri night through Sat evening. Very active
weather will accompany this wave across the Greater Antilles. A
series of tropical low pressure systems will then move across
the Tropical N Atlc and Caribbean Thursday afternoon through the
weekend, and have the potential to organize into tropical
cyclones.

NW Caribbean W of 85W

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...NE winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft.
.SAT...NE winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 ft.
.SUN...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.SUN NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...S of 18N, NE winds 10 to 15 kt. Elsewhere, NE winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...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.
.THU...E winds 10 to 20 kt. Seas 6 to 8 ft.
.THU NIGHT...NE winds 10 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 15 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 7 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

SW Caribbean S of 11N

.OVERNIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft.
.FRI...NE winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 4 to 6 ft.
.FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.SAT...Variable winds less than 10 kt, becoming NW less than
10 kt in the afternoon. Seas 3 to 5 ft.
.SAT NIGHT...W winds less than 10 kt. Seas 3 to 5 ft.
.SUN...SW winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.MON...S winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...N winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 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 9 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...E winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.MON...E winds 10 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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.
.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.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...The W Atlc ridge extends along 27N and will shift N
to near 28N Thursday through Fri, to 29N on Sat and to along 31N
on Sun. The N portion of a strong tropical wave across the NE
Caribbean and SE waters will move W across the remainder of the
far southern waters through Thu. Fresh to locally strong winds
and very active weather will accompany the wave. A tropical low
pressure system is expected to move across the same waters
beginning late on Sat, and reach the waters near the SE Bahamas
on Sun.

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

.OVERNIGHT...SW winds 10 kt. Seas 3 ft.
.THU...SW winds 10 kt. Seas 3 ft.
.THU NIGHT...S winds 10 kt. Seas 3 ft.
.FRI...S winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...S winds less than 10 kt. Seas 3 to 5 ft.
.THU...S winds 10 kt. Seas 3 to 4 ft.
.THU NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.FRI...S winds 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.SAT...S winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...SE winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.MON...E winds less than 10 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.OVERNIGHT...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 20 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 4 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.
.MON...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...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 20 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.MON...E winds 10 to 20 kt. Seas 7 to 10 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...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 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.
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.MON...E winds 15 to 25 kt. Seas 6 to 9 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.

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

.OVERNIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft.
.THU...E winds 15 to 20 kt. Seas 6 to 8 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...E winds 15 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft.
.SAT...E winds 15 to 20 kt. Seas 8 to 11 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft.
.SUN...E winds 15 to 25 kt. Seas 8 to 11 ft.
.SUN NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft.
.MON...E winds 15 to 20 kt. Seas 7 to 10 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.



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