Offshore Marine Forecast
000
FZNT24 KNHC 200829
OFFNT4
Offshore Waters Forecast for the Gulf of America
NWS National Hurricane Center Miami, FL
429 AM EDT Thu Aug 20 2026
Offshore Waters Forecast 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.
GMZ001-202030-
Synopsis for the Gulf of America
429 AM EDT Thu Aug 20 2026
.SYNOPSIS...Relatively weak high pressure centered over the
central Gulf will prevail over the basin through the forecast
period. A weak pressure pattern will support mostly gentle to
moderate winds and slight to locally moderate seas across much
of the basin. A diurnally induced surface trough will generate
fresh to locally strong winds north and west of the Yucatan
Peninsula in the early evenings. These winds will spread
westward away from the peninsula at night as the trough migrates
into the SW Gulf.
$$
GMZ040-202030-
NW Gulf of America including Stetson Bank-
429 AM EDT Thu Aug 20 2026
.TODAY...S winds 10 kt. Seas 3 ft or less.
.TONIGHT...S winds 10 to 15 kt. Seas 3 ft or less.
.FRI...S winds 10 to 15 kt. Seas 3 ft or less.
.FRI NIGHT...S winds 10 kt. Seas 3 ft or less.
.SAT...S to SW winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.SAT NIGHT...S winds 10 kt. Seas 3 ft or less.
.SUN...S to SW winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.SUN NIGHT...SE to S winds 10 kt. Seas 3 ft or less.
.MON...S winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 ft or less.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ041-202030-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
429 AM EDT Thu Aug 20 2026
.TODAY...SW winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.TONIGHT...Variable winds less than 5 kt, becoming S to SW 10 kt
late. Seas 3 ft or less.
.FRI...S to SW winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.FRI NIGHT...SW winds 10 kt. Seas 3 ft or less.
.SAT...W of 92W, SW winds 10 kt in the morning, becoming variable
less than 5 kt. E of 92W, variable winds less than 5 kt, becoming
W 10 kt in the afternoon. Seas 3 ft or less.
.SAT NIGHT...W of 92W, variable winds less than 5 kt. E of 92W,
variable winds less than 5 kt, becoming W to NW 10 kt late. Seas
3 ft or less.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...W of 92W, S winds 10 kt late. Variable
winds less than 5 kt in the evening. E of 92W, variable less than
5 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...SE winds 10 kt. Seas 3 ft or less.
$$
GMZ056-202030-
N Central Gulf of America Offshore Waters-
429 AM EDT Thu Aug 20 2026
.TODAY...Variable winds less than 5 kt W of 89W, and W to NW
10 kt E of 89W. Seas 3 ft or less.
.TONIGHT...W of 89W, variable winds less than 5 kt. E of 89W,
variable winds less than 5 kt, becoming W 10 kt late.
Seas 3 ft or less.
.FRI...Variable winds less than 5 kt, becoming W 10 kt in the
afternoon. Seas 3 ft or less.
.FRI NIGHT...W winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.SAT...W winds 10 kt. Seas 3 ft or less.
.SAT NIGHT...W winds 10 kt. Seas 3 ft or less.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...Variable winds less than 5 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...Variable winds less than 5 kt, becoming SE 10 kt
late. Seas 3 ft or less.
$$
GMZ057-202030-
NE Gulf of America N of 26N E of 87W-
429 AM EDT Thu Aug 20 2026
.TODAY...NW winds 10 kt. Seas 3 ft or less. Scattered showers and
isolated tstms.
.TONIGHT...W to NW winds 10 kt. Seas 3 ft or less.
.FRI...W to NW winds 10 kt. Seas 3 ft or less.
.FRI NIGHT...SW to W winds 10 kt. Seas 3 ft or less.
.SAT...SW to W winds 10 kt. Seas 3 ft or less.
.SAT NIGHT...SW to W winds 10 kt. Seas 3 ft or less.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...Variable winds less than 5 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...Variable winds less than 5 kt, becoming SE 10 kt
late. Seas 3 ft or less.
$$
GMZ058-202030-
W Central Gulf of America from 22N to 26N W of 94W-
429 AM EDT Thu Aug 20 2026
.TODAY...SE winds 10 to 15 kt. Seas 3 ft or less.
.TONIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
.SAT...SE to S winds 10 kt. Seas 3 ft or less.
.SAT NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.SUN...SE winds 10 kt. Seas 3 ft or less.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.MON...SE winds 10 kt. Seas 3 ft or less.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ045-202030-
W Central Gulf of America from 22N to 26N between 91W and 94W-
429 AM EDT Thu Aug 20 2026
.TODAY...SE winds 10 to 15 kt. Seas 3 ft or less.
.TONIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...NE to E winds 10 to 15 kt S of 24N, and variable
less than 5 kt N of 24N. Seas 3 ft or less.
.SAT...S of 24N, E to SE winds 10 to 15 kt. N of 24N, SE to S
winds 10 kt in the morning, becoming variable less than 5 kt.
Seas 2 to 4 ft.
.SAT NIGHT...NE to E winds 10 to 15 kt S of 24N, and variable
less than 5 kt N of 24N. Seas 3 ft or less.
.SUN...S of 24N, E to SE winds 10 kt. N of 24N, SE winds 10 kt in
the morning, becoming variable less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.MON...E to SE winds 10 kt. Seas 3 ft or less.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ046-202030-
Central Gulf of America from 22N to 26N between 87W and 91W-
429 AM EDT Thu Aug 20 2026
.TODAY...S of 24N, E winds 10 kt. N of 24N, SE to S winds 10 kt
in the morning, becoming variable less than 5 kt. Seas 3 ft or
less.
.TONIGHT...E winds 10 to 15 kt S of 24N, and variable less than
5 kt N of 24N. Seas 3 ft or less.
.FRI...E winds 10 kt S of 24N, and variable less than 5 kt N of
24N. Seas 3 ft or less.
.FRI NIGHT...NE to E winds 10 to 15 kt S of 24N, and variable
less than 5 kt N of 24N. Seas 3 ft or less.
.SAT...SE winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 ft or less.
.SAT NIGHT...E winds 10 to 15 kt S of 24N, and variable less than
5 kt N of 24N. Seas 3 ft or less.
.SUN...E winds 10 kt S of 24N, and variable less than 5 kt N of
24N. Seas 3 ft or less.
.SUN NIGHT...E winds 10 to 15 kt S of 24N, and variable less than
5 kt N of 24N. Seas 3 ft or less.
.MON...E winds 10 kt S of 24N, and variable less than 5 kt N of
24N. Seas 3 ft or less.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ047-202030-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
429 AM EDT Thu Aug 20 2026
.TODAY...S of 24N, NE to E winds 10 kt. N of 24N, variable winds
less than 5 kt, becoming NW to N 10 kt in the afternoon. Seas
3 ft or less.
.TONIGHT...S of 24N, N to NE winds 10 kt, shifting to E late. N
of 24N, variable winds less than 5 kt. Seas 3 ft or
less.
.FRI...Variable winds less than 5 kt. Seas 3 ft or less.
.FRI NIGHT...NE to E winds 10 kt S of 24N, and variable less than
5 kt N of 24N. Seas 3 ft or less.
.SAT...Variable winds less than 5 kt. Seas 3 ft or less.
.SAT NIGHT...NE to E winds 10 kt S of 24N, and variable less than
5 kt N of 24N. Seas 3 ft or less.
.SUN...S of 24N, variable winds less than 5 kt, becoming NE 10 kt
in the afternoon. N of 24N, variable winds less than 5 kt. Seas
3 ft or less.
.SUN NIGHT...NE to E winds 10 kt S of 24N, and variable less than
5 kt N of 24N. Seas 3 ft or less.
.MON...NE to E winds 10 kt. Seas 3 ft or less.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ048-202030-
SW Gulf of America S of 22N W of 94W-
429 AM EDT Thu Aug 20 2026
.TODAY...E to SE winds 10 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT...S of 21N W of 95W, E winds 10 kt in the morning, becoming
variable less than 5 kt. Elsewhere, E winds 10 kt. Seas 2 to
4 ft.
.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.SUN...SE winds 10 kt, shifting to NE to E in the afternoon. Seas
2 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.MON...E winds 10 kt. Seas 3 ft or less.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ049-202030-
Central Bay of Campeche-
429 AM EDT Thu Aug 20 2026
.TODAY...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.TONIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft.
.FRI...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft.
.SAT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT NIGHT...NE winds 15 to 20 kt. Seas 3 ft or less, building to
3 to 5 ft late.
.SUN...E winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less,
building to 3 to 5 ft late.
.MON...E winds 10 kt. Seas 3 to 5 ft.
.MON NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less,
building to 3 to 5 ft late.
$$
GMZ050-202030-
E Bay of Campeche including Campeche Bank-
429 AM EDT Thu Aug 20 2026
.TODAY...E to SE winds 10 to 15 kt, shifting to NE to E in the
afternoon. Seas 2 to 4 ft.
.TONIGHT...N to NE winds 15 to 20 kt, shifting to E late. Seas
3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT NIGHT...W of 90W, N to NE winds 15 to 20 kt, shifting to E
late. E of 90W, NE winds 15 to 20 kt, shifting to E to
SE 10 kt late. Seas 3 ft or less, building to 3 to 5 ft
late.
.SUN...E to SE winds 10 kt, shifting to NE in the afternoon. Seas
2 to 4 ft.
.SUN NIGHT...NE winds 15 to 20 kt, shifting to E to SE 10 to
15 kt late. Seas 3 ft or less, building to 3 to 5 ft
late.
.MON...E to SE winds 10 kt, shifting to NE in the afternoon. Seas
3 to 5 ft, subsiding to 3 ft or less in the afternoon.
.MON NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less,
building to 3 to 5 ft late.
$$
Forecaster Delgado
