Offshore Marine Forecast
000
FZNT24 KNHC 211409
OFFNT4
Offshore Waters Forecast for the Gulf of America
NWS National Hurricane Center Miami, FL
1009 AM EDT Mon Sep 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.
GMZ001-220215-
Synopsis for the Gulf of America
1009 AM EDT Mon Sep 21 2026
.SYNOPSIS...A very weak pressure gradient will force only gentle
to moderate winds across the Gulf through Thu. A vigorous upper-
level low will promote scattered showers and thunderstorms over
the SE Gulf and the Straits of Florida for at least the next two
days. Looking ahead, a cold front should dip into the NE Gulf Thu
night and Fri with fresh NE to E winds to follow across the N
Gulf.
$$
GMZ040-220215-
NW Gulf of America including Stetson Bank-
1009 AM EDT Mon Sep 21 2026
.TODAY...E winds 10 kt. Seas 3 ft or less.
.TONIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.WED...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.THU...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...E winds 15 kt. Seas 3 to 5 ft.
$$
GMZ041-220215-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
1009 AM EDT Mon Sep 21 2026
.TODAY...NE to E winds 10 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 kt. Seas 3 ft or less.
.TUE...NE winds 10 kt. Seas 3 ft or less.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.WED...NE to 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...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft.
$$
GMZ056-220215-
N Central Gulf of America Offshore Waters-
1009 AM EDT Mon Sep 21 2026
.TODAY...NE to E winds 10 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.TONIGHT...E winds 10 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.TUE NIGHT...E winds 10 kt. Seas 3 ft or less.
.WED...NE to E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.THU...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.THU NIGHT...NE to E winds 15 kt. Seas 3 to 5 ft.
.FRI...NE to E winds 15 to 20 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft.
$$
GMZ057-220215-
NE Gulf of America N of 26N E of 87W-
1009 AM EDT Mon Sep 21 2026
.TODAY...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.TONIGHT...E winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
.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, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.WED NIGHT...E winds 10 kt. Seas 3 ft or less.
.THU...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.THU NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ058-220215-
W Central Gulf of America from 22N to 26N W of 94W-
1009 AM EDT Mon Sep 21 2026
.TODAY...Variable winds less than 5 kt W of 96W, and E to SE
10 kt E of 96W. Seas 3 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less in NE to E swell, subsiding to
3 ft or less in the afternoon.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.WED...NE to E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.THU...NE winds 10 kt. Seas 2 to 4 ft.
.THU NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...NE winds 10 kt. Seas 2 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ045-220215-
W Central Gulf of America from 22N to 26N between 91W and 94W-
1009 AM EDT Mon Sep 21 2026
.TODAY...E winds 10 kt. Seas 3 ft or less.
.TONIGHT...NE to E winds 10 kt. Seas 3 ft or less.
.TUE...NE to E winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.TUE NIGHT...NE to E winds 10 kt. Seas 3 ft or less.
.WED...E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.THU...NE to E winds 10 kt. Seas 3 ft or less.
.THU NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
$$
GMZ046-220215-
Central Gulf of America from 22N to 26N between 87W and 91W-
1009 AM EDT Mon Sep 21 2026
.TODAY...Variable winds less than 5 kt S of 24N, and NE to E
10 kt N of 24N. Seas 3 ft or less.
.TONIGHT...E winds 10 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
.TUE NIGHT...E winds 10 kt. Seas 3 ft or less.
.WED...E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.THU...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.THU NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
$$
GMZ047-220215-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
1009 AM EDT Mon Sep 21 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
Scattered showers and isolated tstms.
.TONIGHT...S of 24N, variable winds less than 5 kt, becoming SE
10 kt late. N of 24N, E to SE winds 10 kt. Seas 3 ft or
less. Scattered showers and isolated tstms.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
Scattered showers and isolated tstms.
.TUE NIGHT...E to SE winds 10 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.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...E to SE winds 10 kt. Seas 3 ft or less.
.THU NIGHT...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...S of 24N, E to SE winds 10 kt. N of 24N, SE to S
winds 10 kt in the evening, becoming variable less than 5 kt.
Seas 2 to 4 ft.
$$
GMZ048-220215-
SW Gulf of America S of 22N W of 94W-
1009 AM EDT Mon Sep 21 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
.TONIGHT...S of 21N W of 95W, NE winds 10 kt in the evening,
becoming variable less than 5 kt. Elsewhere, NE to E winds 10 kt.
Seas 3 ft or less.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
Scattered showers and isolated tstms.
.TUE NIGHT...S of 21N W of 95W, NE winds 10 kt in the evening,
becoming variable less than 5 kt. Elsewhere, NE to E winds 10 kt.
Seas 3 ft or less. Scattered showers and isolated tstms.
.WED...Variable winds less than 5 kt, becoming N 10 kt in the
afternoon. Seas 3 ft or less.
.WED NIGHT...N to NE winds 10 kt. Seas 3 ft or less.
.THU...N winds 10 to 15 kt. Seas 3 ft or less.
.THU NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...NW to N winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ049-220215-
Central Bay of Campeche-
1009 AM EDT Mon Sep 21 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
.TONIGHT...NE winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
Scattered showers and isolated tstms.
.TUE NIGHT...NE winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.WED...S of 20N, variable winds less than 5 kt, becoming NW 10 kt
in the afternoon. N of 20N, NE to E winds 10 kt in the morning,
becoming variable less than 5 kt. Seas 3 ft or less.
.WED NIGHT...NE winds 10 kt. Seas 3 ft or less.
.THU...NE winds 10 kt. Seas 3 ft or less.
.THU NIGHT...NE winds 10 kt. Seas 3 ft or less.
.FRI...N to NE winds 10 kt. Seas 3 ft or less.
.FRI NIGHT...S of 20N, N winds 10 kt in the evening, becoming
variable less than 5 kt. N of 20N, NE winds 10 kt. Seas 3 ft or
less.
$$
GMZ050-220215-
E Bay of Campeche including Campeche Bank-
1009 AM EDT Mon Sep 21 2026
.TODAY...W of 90W, variable less than 5 kt. Variable winds less
than 5 kt late in the morning. E of 90W, N to NE winds 10 kt in
the afternoon. Seas 3 ft or less.
.TONIGHT...N to NE winds 10 kt, shifting to E late.
Seas 3 ft or less. Scattered showers and isolated tstms.
.TUE...W of 90W, E to SE winds 10 kt in the morning, becoming
variable less than 5 kt. E of 90W, variable winds less than 5 kt,
becoming NE 10 kt in the afternoon. Seas 3 ft or less.
.TUE NIGHT...N to NE winds 10 to 15 kt, shifting to E late. Seas
3 ft or less. Scattered showers and isolated
tstms.
.WED...E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.THU...E winds 10 kt, shifting to NE in the afternoon. Seas 3 ft
or less.
.THU NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.FRI...W of 90W, E to SE winds 10 kt in the morning, becoming
variable less than 5 kt. E of 90W, SE winds 10 to 15 kt. Seas
3 ft or less.
.FRI NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
Forecaster Landsea
