Offshore Forecast
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000
FZNT31 KNHC 240900
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
500 AM EDT Tue Apr 24 2018

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...Atlantic high pressure will maintain fresh to strong
trades near the coast of Colombia and the northwest coast of
Venezuela through early this afternoon. These winds will then
pulse back up to fresh to strong at night and into the
afternoons beginning tonight. They are expected to continue
through the period, but over smaller areal coverage. A weakening
cold front will reach NW Cuba and the Yucatan Peninsula on Wed.

NW Caribbean W of 85W

.TODAY...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt. Seas 2 to 3 ft.
.WED...E winds less than 10 kt. Seas 2 to 3 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...SE winds less than 10 kt. Seas 2 to 3 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SE 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 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...S of 18N, E winds 10 to 15 kt. Seas 4 to 6 ft.
Elsewhere, E winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 2 to 3 ft.
.TONIGHT...E winds 10 to 15 kt S of 18N, and Variable less than
10 kt elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less
elsewhere.
.WED...E winds 10 to 15 kt S of 18N, and Variable less than
10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.WED NIGHT...E winds 10 to 15 kt S of 18N, and Variable less
than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.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.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 15 to 25 kt within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 6 to 9 ft.
.TONIGHT...NE winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft.
.WED...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.
.WED NIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. 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 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.

SW Caribbean S of 11N

.TODAY...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...NE winds 10 to 15 kt. 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 5 to 7 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.FRI...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 5 ft.
.SAT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

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

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.
.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.
.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.

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 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 20 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 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.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...A stationary front enters the area at 27N65W, and
continues to near 25N73W. Numerous showers and thunderstorms,
with strong gusty winds are occurring over the NW Bahamas and
northeastward from there. A very tight pressure gradient between
broad low pressure over the southeastern United States and
strong  high pressure over the western Atlantic is producing
strong to near gale force east to southeast winds over the
northern waters west of 70W. These wind conditions will gradually
diminish through Wed while shifting northeast of the area. The
broad low will track northeastward toward the mid-Atlantic coast
through Wed night. It will push a weak cold front across the
northwest portion of the area today and tonight, then across the
north-central waters Wed through Thu before stalling there Thu
night. Another weak cold front will move over the far northwest
portion Fri and Sat, and over the north-central waters Sat
night.

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

.TODAY...SW winds 15 to 25 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 7 to 10 ft.
.TONIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft.
.WED...W winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...W winds 10 to 15 kt, shifting to SW after midnight.
Seas 4 to 6 ft.
.THU...SW winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...S to SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...W winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...N winds less than 10 kt. Seas 2 to 3 ft.

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

.TODAY...SE winds 15 to 25 kt W of 70W, and E 10 to 20 kt
elsewhere. Seas 8 to 11 ft W of 70W, and 6 to 7 ft elsewhere.
.TONIGHT...SE winds 10 to 20 kt. Seas 7 to 10 ft.
.WED...S winds 10 to 20 kt. Seas 6 to 9 ft.
.WED NIGHT...W of 70W, SW winds 10 to 15 kt, shifting to W after
midnight. Elsewhere, S winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...S winds less than 10 kt. Seas 4 to 5 ft.
.FRI...S winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft.

Bahamas N of 22N

.TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.WED...SW winds less than 10 kt. Seas 3 ft.
.WED NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 2 to 3 ft.
.THU...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 2 ft or less.
.THU NIGHT...Variable winds less than 10 kt, becoming S less
than 10 kt after midnight. Seas 2 ft or less.
.FRI...S winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT...SW winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...Variable winds less than 10 kt, becoming NE less
than 10 kt after midnight. Seas 2 ft or less.

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

.TODAY...SE winds 15 to 20 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 5 to 7 ft.
.TONIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 6 ft.
.THU...S winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.FRI...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 15 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 ft.
.THU...E winds 10 to 15 kt. Seas 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 6 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.



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