Offshore Forecast
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000
FZNT32 KNHC 240158
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1058 PM EDT Mon Oct 23 2017

Marine Weather HF Voice Broadcast for the Gulf of Mexico

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 the Gulf of Mexico

.SYNOPSIS...A cold front extends from Apalachee Bay to 24N90W
to 25N86W where it becomes stationary to inland near Tampico.
The cold front will quickly reach the far SE waters early on
Wednesday, and move E of the area during Wednesday afternoon.
High pressure building in behind the front will usher in fresh
to strong northerly winds over the area from early on Tuesday
through Wednesday morning. These Winds will diminish through
Thursday afternoon as the high pressure shifts to the NE Gulf.
The high pressure will weaken on Friday as another cold front
moves across eastern Texas, and into the NW Gulf on Friday
night. The front will then reach from the NE Gulf to near 25N90W
and the eastern Bay of Campeche by late on Saturday followed by
strong high pressure to once again bring another round of strong
northerly flow across much of the basin, with northerly winds
expected to reach gale force in the far SW Gulf portion.

Gulf of Mexico N of 26N W of 87W

.OVERNIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...N winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft.
.WED...N winds 15 to 25 kt. Seas 6 to 8 ft.
.WED NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 3 ft in the morning, subsiding to
2 ft or less.
.THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.
.FRI...S winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming N 10 to
15 kt after midnight. Seas 3 to 5 ft.
.SAT...N winds 15 to 25 kt. Seas 5 to 7 ft.
.SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft.

Gulf of Mexico from 22N to 26N W of 87W

.OVERNIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...N winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft.
.WED...N winds 15 to 25 kt. Seas 7 to 9 ft.
.WED NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft.
.THU...E winds less than 10 kt. Seas 4 to 6 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.FRI...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...N winds less than 10 kt. Seas 4 to 6 ft.
.SAT...N winds 10 to 15 kt, increasing to 15 to 25 kt in the
afternoon. Seas 5 to 7 ft.
.SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft.

SW Gulf of Mexico S of 22N W of 87W

...GALE WARNING...
...GALE CONDITIONS POSSIBLE SAT AND SAT NIGHT...

.OVERNIGHT...S of 21N W of 95W, NW to N winds 30 to 35 kt,
diminishing to 20 to 30 kt late. Seas 9 to 11 ft. Elsewhere,
N winds 10 to 20 kt. Seas 6 to 8 ft W of 94W, and 4 to 6 E of
94W.
.TUE...S of 20.5N W of 95W, NW to N winds 25 to 35 kt. Seas 9 to
12 ft. Elsewhere, N winds 15 to 25 kt. Seas 6 to 9 ft W of 94W,
and 4 to 6 ft E of 94W.
.TUE NIGHT...N winds 15 to 25 kt, except NW to N winds 25 to 30
kt S of 20N W of 96W. Seas 6 to 9 ft E of 94W, and 8 to 10 ft W
of 94W.
.WED...N winds 15 to 25 kt. Seas 7 to 10 ft.
.WED NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft.
.THU...NE winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...N winds less than 10 kt. Seas 3 ft.
.SAT...W of 94W, NW to N winds 10 to 20 kt, increasing to 25 to
30 kt in the afternoon except 30 to 35 kt S of 20.5N W of 95W.
W of 94W, seas 6 to 8 ft except 8 to 11 ft W of 95W. E of 94W,
N winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...W of 94W, NW to N winds 20 to 30 kt, except 30 to 35 kt S of
20N W of 95W. Seas 8 to 10 ft, except 9 to 12 ft S of 20N W of
95W. E of 94W, N winds 10 to 20 kt. Seas 5 to 7 ft.

Gulf of Mexico E of 87W

.OVERNIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...N winds 10 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...N winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NE winds 10 to 15 kt, shifting to E after midnight.
Seas 3 to 5 ft.
.FRI...NE winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.
.SAT...E winds less than 10 kt, shifting to NW in the afternoon.
Seas 3 to 5 ft.
.SAT NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.


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