Offshore Forecast
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000
FZNT31 KNHC 201504
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1104 AM EDT Thu Jul 20 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...Fresh to strong winds will prevail in the eastern
and central Caribbean. Gentle to moderate winds will cover the
western Caribbean. Moderate to fresh winds are expected in the
Tropical North Atlantic forecast zones. The ridge north of the
area will weaken this weekend. This will decrease the aerial
extent of the winds and seas. The ridge will strengthen early
next week which will once again increase winds and seas,
particularly across the south-central Caribbean.

NW Caribbean W of 85W

.THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...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.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 15 to 25 kt S of 18N, and E less than
10 kt elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft
elsewhere.
.TONIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere.
.FRI...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds less
than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas
6 to 9 ft S of 18N, and 3 to 5 ft elsewhere.
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 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 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 15 to 25 kt. Seas 7 to 10 ft.
.TONIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI...E winds 15 to 25 kt Within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 7 to 10 ft.
.FRI NIGHT...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.
.SAT...E winds 10 to 20 kt. Seas 6 to 8 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.
.MON...E winds 15 to 25 kt. Seas 7 to 10 ft.
.MON NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...SE winds less than 10 kt. Seas 4 to 6 ft.
.TONIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.FRI...E winds less than 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT NIGHT...N winds less than 10 kt. Seas 4 to 6 ft.
.SUN...NE winds less than 10 kt. Seas 5 to 7 ft.
.SUN NIGHT...N winds less than 10 kt. Seas 5 to 7 ft.
.MON...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft.
.MON NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 6 to 8 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 5 to 7 ft.
.FRI...Gulf of Venezuela, E winds 10 to 20 kt, becoming NE less
than 10 kt in the afternoon. Elsewhere, E winds 10 to 15 kt.
Seas 3 to 5 ft Gulf of Venezuela, and 4 to 6 ft elsewhere.
.FRI NIGHT...Gulf of Venezuela, NE winds 10 to 20 kt, shifting
to E 20 to 25 kt after midnight. Elsewhere, E winds 10 to 20 kt.
Seas 4 to 6 ft.
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 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 20 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.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 6 ft.
.FRI...SE winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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.
.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...High pressure will prevail across the area through
Mon night.

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

.THIS AFTERNOON...S winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.FRI...S winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.SAT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...S winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...S winds 10 kt. Seas 4 ft.
.TONIGHT...S winds less than 10 kt. Seas 4 ft.
.FRI...S winds 10 to 15 kt. Seas 4 ft.
.FRI NIGHT...S winds 10 to 15 kt W of 70W, and S less than 10 kt
elsewhere. Seas 4 ft.
.SAT...S winds 10 to 15 kt. Seas 4 ft.
.SAT NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.SUN...S winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.MON...S winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.

Bahamas N of 22N

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 5 ft.
.FRI...SE winds 10 to 15 kt. Seas 4 to 5 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 15 kt. Seas 4 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...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 4 to 6 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 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 20 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...E winds 15 kt. Seas 6 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 6 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 4 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.



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