Offshore Forecast
Issued by NWS

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079
FZNT32 KNHC 181504
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1104 AM EDT Sat Oct 18 2025

Marine Weather HF Voice Broadcast for the Gulf of America

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...Moderate S to SE winds and slight to moderate seas
will prevail over the Gulf of America today. Locally fresh S to
SE winds are expected to develop tonight east of 90W, including
through the Florida Straits, as high pressure builds over the
western Atlantic. A cold front will move into the northwestern
Gulf Sun morning and move southeastward over the basin through
Mon. Moderate N to NE winds are expected north of the cold front,
and locally fresh winds will be possible north of 27N into Mon
morning. High pressure is slated to develop over the basin in the
wake of the front, leading to gentle to moderate winds and
slight seas over the Gulf early next week.

Gulf of America N of 26N W of 87W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...N to NE winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.TUE...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less.
.WED...NE winds 10 to 15 kt. Seas 2 ft or less, building to 3 to
4 ft in the afternoon.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...S winds less than 10 kt, shifting to N in the afternoon.
Seas 3 to 4 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...NE winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SUN...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...N winds less than 10 kt within 60 nm of coast of
Veracruz, and NE 10 to 15 kt elsewhere. Seas 2 ft or less,
building to 3 ft after midnight.
.MON...NE winds less than 10 kt. Seas 3 ft.
.MON NIGHT...NE winds less than 10 kt. Seas 3 ft.
.TUE...NE winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

Gulf of America E of 87W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 5 ft.
.TONIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...SE winds 10 to 15 kt, shifting to N in the afternoon.
Seas 3 to 5 ft.
.SUN NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft.
.MON...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 kt. Seas 3 ft.
.TUE...NE winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.
.WED...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.