Offshore Marine Forecast
000
FZNT24 KNHC 220259
OFFNT4
Offshore Waters Forecast for the Gulf of America
NWS National Hurricane Center Miami, FL
1059 PM EDT Thu May 21 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.
GMZ001-221500-
Synopsis for the Gulf of America
1059 PM EDT Thu May 21 2026
.SYNOPSIS...High pressure extending from the western Atlantic to
the northern Gulf will change little during the forecast period.
The pressure gradient between it and relatively lower pressures
over Texas and northern Mexico will generally maintain a gentle
to moderate east to southeast wind flow across the basin through
the weekend, with the exception of fresh to strong winds pulsing
off NW Yucatan from the late afternoons and into the night time
hours due to local effects associated with a thermal trough.
$$
GMZ040-221500-
NW Gulf of America including Stetson Bank-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...S winds 10 kt. Seas 3 ft or less.
.FRI...SE to S winds 10 to 15 kt. Seas 3 ft or less.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers
and isolated tstms.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...S winds 10 to 15 kt in the late morning and early
afternoon, becoming variable less than 5 kt. Seas 3 to 5 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E to SE winds 10 kt in the late morning and early
afternoon, becoming variable less than 5 kt. Seas 3 to 5 ft in SE
swell.
.MON NIGHT...E to SE winds 10 kt. Seas 2 to 4 ft.
.TUE...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ041-221500-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...SE to S winds 10 kt. Seas 3 ft or less.
.FRI...S winds 10 to 15 kt. Seas 3 ft or less.
.FRI NIGHT...SE winds 10 kt. Seas 2 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...W of 92W, SE to S winds 10 to 15 kt, shifting to E early
in the evening. E of 92W, SE winds 15 kt, shifting to SW to W
early in the evening. Seas 3 to 5 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SE to S winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft.
.TUE...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ056-221500-
N Central Gulf of America Offshore Waters-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. Scattered
showers and isolated tstms.
.FRI...S winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and
isolated tstms.
.FRI NIGHT...SE winds 10 kt. Seas 3 ft or less.
.SAT...SE winds 10 kt. Seas 3 ft or less.
.SAT NIGHT...SE winds 10 kt. Seas 3 ft or less.
.SUN...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
$$
GMZ057-221500-
NE Gulf of America N of 26N E of 87W-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...SE to S winds 10 kt. Seas 3 ft or less.
.SAT...SE winds 10 kt. Seas 3 ft or less.
.SAT NIGHT...SE winds 10 kt. Seas 3 ft or less.
.SUN...SE winds 10 to 15 kt. Seas 3 ft or less.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
$$
GMZ058-221500-
W Central Gulf of America from 22N to 26N W of 94W-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
.FRI...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...W of 96W, NE winds early in the evening. Winds SE to S
10 kt in the late morning and early afternoon. E of 96W, variable
less than 5 kt. Seas 2 to 4 ft.
.SUN NIGHT...E winds 10 kt. Seas 3 to 5 ft.
.MON...SE to S winds 10 kt in the late morning and early
afternoon, becoming variable less than 5 kt. Seas 2 to 4 ft.
.MON NIGHT...E to SE winds 10 kt. Seas 2 to 4 ft.
.TUE...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ045-221500-
W Central Gulf of America from 22N to 26N between 91W and 94W-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...E to SE 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 to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft.
.SUN...SE to S winds 15 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SE to S winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ046-221500-
Central Gulf of America from 22N to 26N between 87W and 91W-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...SE winds 10 kt. Seas 2 to 4 ft.
.FRI NIGHT...E to SE winds 15 to 20 kt S of 24N, and SE 10 to
15 kt N of 24N. Seas 2 to 4 ft.
.SAT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft.
.SUN...E to SE winds 15 to 20 kt S of 24N, and SE 10 to 15 kt N
of 24N. Seas 3 to 5 ft.
.SUN NIGHT...E to SE winds 15 to 20 kt S of 24N, and E to SE
10 to 15 kt N of 24N. Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft.
$$
GMZ047-221500-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...SE winds 10 kt. Seas 2 to 4 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less.
.SAT...E to SE winds 10 kt. Seas 3 ft or less.
.SAT NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.SUN...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
$$
GMZ048-221500-
SW Gulf of America S of 22N W of 94W-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...NE winds 10 kt, shifting to SE early in the morning.
Seas 3 ft or less.
.FRI...NE to E winds 10 kt. Seas 3 ft or less.
.FRI NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.SAT...S of 21N W of 95W, variable winds less than 5 kt, becoming
E 10 kt early in the evening. Elsewhere, E to SE winds 10 to
15 kt. Seas 2 to 4 ft.
.SAT NIGHT...E winds 10 kt. Seas 2 to 4 ft.
.SUN...SW winds 10 kt, shifting to NE to E early in the evening.
Seas 2 to 4 ft.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...S of 21N W of 95W, variable less than 5 kt. Variable winds
less than 5 kt in the late morning and early afternoon.
Elsewhere, E winds 10 kt early in the evening. Seas 2 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...E to SE winds 10 kt. Seas 3 ft or less.
.TUE NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ049-221500-
Central Bay of Campeche-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft.
.FRI...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...E 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 to E winds 15 to 20 kt. Seas 2 to 4 ft.
.SUN...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ050-221500-
E Bay of Campeche including Campeche Bank-
1059 PM EDT Thu May 21 2026
.OVERNIGHT...NE to E winds 15 to 20 kt, shifting to SE 10 to
15 kt early in the morning. Seas 2 to 4 ft.
.FRI...SE winds 10 to 15 kt, shifting to N to NE early in the
evening. Seas 2 to 4 ft.
.FRI NIGHT...E winds 15 to 20 kt. Seas 2 to 4 ft.
.SAT...W of 90W, SE winds 10 to 15 kt, shifting to N early in the
evening. E of 90W, E to SE winds 10 to 15 kt, becoming NE to E
20 to 25 kt early in the evening. Seas 2 to 4 ft.
.SAT NIGHT...NE to E winds 15 to 20 kt, shifting to SE early in
the morning. Seas 3 to 5 ft.
.SUN...W of 90W, SE winds 10 to 15 kt, shifting to NW to N early
in the evening. E of 90W, E to SE winds 10 to 15 kt, becoming NE
to E 20 to 25 kt early in the evening. Seas 3 to 5 ft.
.SUN NIGHT...NE winds 15 to 20 kt, shifting to E to SE 10 to
15 kt early in the morning. Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt, shifting to NE to E early in the
evening. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...W of 90W, SE winds 10 to 15 kt, shifting to NE early in
the evening. E of 90W, E to SE winds 10 kt, shifting to NE to E
15 to 20 kt early in the evening. Seas 2 to 4 ft.
.TUE NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft.
$$
Forecaster GR
