Offshore Marine Forecast
000
FZNT24 KNHC 310917
OFFNT4
Offshore Waters Forecast for the Gulf of America
NWS National Hurricane Center Miami, FL
517 AM EDT Mon Aug 31 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.
GMZ001-312130-
Synopsis for the Gulf of America
517 AM EDT Mon Aug 31 2026
.SYNOPSIS...An area of low pressure...Invest AL97...located near
27N90W over the northern Gulf waters is producing scattered
showers and isolated thunderstorms. The system has a high chance
of tropical development over the next couple of days as it moves
toward the NW Gulf coast. Regardless, is expected to bring locally
heavy rainfall to portions of the Upper Texas and southwestern
Louisiana coasts during the next several days. Near gale-force
winds and rough seas are forecast to develop in the nearshore
waters this afternoon into tonight. Conditions will improve Tue.
Away from this system, weak high pressure will prevail allowing
for moderate or weaker winds and slight to moderate seas.
$$
GMZ040-312130-
NW Gulf of America including Stetson Bank-
517 AM EDT Mon Aug 31 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 kt, shifting to SE to S late.
Seas 3 ft or less, building to 3 to 5 ft late.
.TUE...S winds 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft, subsiding to
3 ft or less late.
.WED...SE to S winds 10 kt. Seas 3 ft or less.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
.THU...SE to S winds 10 kt. Seas 3 ft or less.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI...SE to S winds 10 kt. Seas 3 ft or less.
.FRI NIGHT...SE winds 10 kt. Seas 3 ft or less.
$$
GMZ041-312130-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
517 AM EDT Mon Aug 31 2026
.TODAY...W of 92W, variable winds less than 5 kt, becoming NW to
N 10 kt in the afternoon. E of 92W, SE winds 15 to 25 kt. Seas 6
to 8 ft in NE to E swell. Scattered showers and isolated tstms.
.TONIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in E swell.
.TUE...S winds 10 kt. Seas 6 to 8 ft in SE swell.
.TUE NIGHT...SE winds 10 kt. Seas 3 to 5 ft, subsiding to 3 ft or
less late.
.WED...W of 92W, SE to S winds 10 kt in the morning, becoming
variable less than 5 kt. E of 92W, variable winds less than 5 kt.
Seas 3 ft or less.
.WED NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.THU...Variable winds less than 5 kt. Seas 3 ft or less.
.THU NIGHT...SE winds 10 kt. Seas 3 ft or less.
.FRI...SE to S winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.FRI NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
$$
GMZ056-312130-
N Central Gulf of America Offshore Waters-
517 AM EDT Mon Aug 31 2026
.TODAY...W of 89W, S winds 15 to 20 kt, shifting to S to SW 10 kt
in the afternoon. E of 89W, SE winds 10 kt in the morning,
becoming variable less than 5 kt. Seas 4 to 6 ft in NE to E
swell. Scattered showers and isolated tstms.
.TONIGHT...E to SE winds 10 kt. Seas 4 to 6 ft in E to SE swell.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less in SE
swell, subsiding to 3 ft or less in the afternoon.
.TUE NIGHT...Variable winds less than 5 kt, becoming E to SE
10 kt late. Seas 3 ft or less.
.WED...Variable winds less than 5 kt. Seas 3 ft or less.
.WED NIGHT...Variable winds less than 5 kt, becoming E to SE
10 kt late. Seas 3 ft or less.
.THU...Variable winds less than 5 kt. Seas 3 ft or less.
.THU NIGHT...SE winds 10 kt. Seas 3 ft or less.
.FRI...Variable winds less than 5 kt. Seas 3 ft or less.
.FRI NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
$$
GMZ057-312130-
NE Gulf of America N of 26N E of 87W-
517 AM EDT Mon Aug 31 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
.TONIGHT...Variable winds less than 5 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
.TUE NIGHT...W of 85W, variable winds less than 5 kt. E of 85W,
variable winds less than 5 kt, becoming E 10 kt late.
Seas 3 ft or less.
.WED...Variable winds less than 5 kt. Seas 3 ft or less in SE to
S swell, subsiding to 3 ft or less in the afternoon.
.WED NIGHT...Variable winds less than 5 kt. Seas 3 ft or less.
.THU...Variable winds less than 5 kt. Seas 3 ft or less.
.THU NIGHT...SE winds 10 kt. Seas 3 ft or less.
.FRI...E to SE winds 10 kt. Seas 3 ft or less.
.FRI NIGHT...W of 85W, E to SE winds 10 kt. E of 85W, variable
winds less than 5 kt, becoming E to SE 10 kt late. Seas
3 ft or less.
$$
GMZ058-312130-
W Central Gulf of America from 22N to 26N W of 94W-
517 AM EDT Mon Aug 31 2026
.TODAY...SE to S winds 10 kt. Seas 3 ft or less.
.TONIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
.TUE...SE winds 10 kt. Seas 3 ft or less.
.TUE NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.WED...SE winds 10 kt. Seas 3 ft or less.
.WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.THU...SE winds 10 kt. Seas 3 ft or less.
.THU NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI...SE winds 10 kt. Seas 3 ft or less.
.FRI NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ045-312130-
W Central Gulf of America from 22N to 26N between 91W and 94W-
517 AM EDT Mon Aug 31 2026
.TODAY...E to SE winds 10 kt S of 24N, and variable less than
5 kt N of 24N. Seas 3 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.TUE...SE winds 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.WED...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.THU...E to SE winds 10 kt. Seas 3 ft or less.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.FRI...SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ046-312130-
Central Gulf of America from 22N to 26N between 87W and 91W-
517 AM EDT Mon Aug 31 2026
.TODAY...SE winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.TUE...E to SE winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.WED...E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.THU...E to SE winds 10 kt. Seas 3 ft or less.
.THU NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI...SE winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 ft or less.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ047-312130-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
517 AM EDT Mon Aug 31 2026
.TODAY...E winds 10 kt S of 24N, and variable less than 5 kt N of
24N. Seas 3 ft or less.
.TONIGHT...NE to E winds 10 kt. Seas 3 ft or less.
.TUE...S of 24N, NE to E winds 10 kt. N of 24N, variable winds
less than 5 kt, becoming NE 10 kt in the afternoon. Seas 3 ft or
less.
.TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.WED...E winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 ft or less.
.WED NIGHT...NE to E winds 10 kt. Seas 3 ft or less.
.THU...S of 24N, E to SE winds 10 kt in the morning, becoming
variable less than 5 kt. N of 24N, E winds 10 kt. Seas 3 ft or
less.
.THU NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI...E to SE winds 10 kt. Seas 3 ft or less.
.FRI NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ048-312130-
SW Gulf of America S of 22N W of 94W-
517 AM EDT Mon Aug 31 2026
.TODAY...E winds 10 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.TUE...S of 21N W of 95W, E to SE winds 10 kt in the morning,
becoming variable less than 5 kt. Elsewhere, E winds 10 kt. Seas
3 ft or less.
.TUE NIGHT...NE to E winds 10 kt. Seas 3 ft or less.
.WED...S of 21N W of 95W, SE winds 10 kt in the morning, becoming
variable less than 5 kt. Elsewhere, E winds 10 to 15 kt. Seas
3 ft or less.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.THU...E winds 10 kt. Seas 3 ft or less.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.FRI...E to SE winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 ft or less.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ049-312130-
Central Bay of Campeche-
517 AM EDT Mon Aug 31 2026
.TODAY...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TONIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft.
.TUE...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less.
.WED...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.WED NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less.
.THU...E winds 10 to 15 kt. Seas 3 ft or less.
.THU NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less.
.FRI...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ050-312130-
E Bay of Campeche including Campeche Bank-
517 AM EDT Mon Aug 31 2026
.TODAY...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TONIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less.
.WED...E winds 10 to 15 kt. Seas 3 ft or less.
.WED NIGHT...NE winds 15 to 20 kt. Seas 3 ft or less.
.THU...SE winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 3 ft or less.
.THU NIGHT...E winds 15 to 20 kt. Seas 3 ft or less.
.FRI...SE winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 3 ft or less.
.FRI NIGHT...NE winds 15 to 20 kt, shifting to E to SE 10 to
15 kt late. Seas 3 ft or less.
$$
Forecaster Delgado
