Offshore Marine Forecast
000
FZNT24 KNHC 190821
OFFNT4
Offshore Waters Forecast for the Gulf of America
NWS National Hurricane Center Miami, FL
421 AM EDT Sat Sep 19 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.
GMZ001-192030-
Synopsis for the Gulf of America
421 AM EDT Sat Sep 19 2026
.SYNOPSIS...A ridge will dominate the Gulf region supporting
gentle to moderate winds and slight to moderate seas through
Sun. Winds will then ease to light to gentle speeds early next
week, with seas remaining slight. Meanwhile, a broad upper-level
low currently located over northeastern Florida will move into
the NE Gulf today. This feature will lead to increasing shower
and thunderstorm activity over the eastern and central Gulf
waters.
$$
GMZ040-192030-
NW Gulf of America including Stetson Bank-
421 AM EDT Sat Sep 19 2026
.TODAY...E winds 10 kt. Seas 2 to 4 ft.
.TONIGHT...E to SE winds 10 kt. Seas 2 to 4 ft.
.SUN...E to SE winds 10 kt. Seas 3 ft or less.
.SUN NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt, becoming E 10 kt in the
afternoon. Seas 3 ft or less.
.MON NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.WED...E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ041-192030-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
421 AM EDT Sat Sep 19 2026
.TODAY...E winds 10 kt. Seas 3 to 5 ft. Scattered showers and
isolated tstms.
.TONIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.SUN...Variable winds less than 5 kt, becoming E 10 kt in the
afternoon. Seas 3 ft or less.
.SUN NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.MON NIGHT...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...E winds 10 kt. Seas 3 ft or less.
.WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ056-192030-
N Central Gulf of America Offshore Waters-
421 AM EDT Sat Sep 19 2026
.TODAY...E winds 10 kt. Seas 3 to 5 ft.
.TONIGHT...E winds 10 kt. Seas 2 to 4 ft.
.SUN...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.SUN NIGHT...E winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.MON NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
.TUE NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.WED...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 ft or less.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ057-192030-
NE Gulf of America N of 26N E of 87W-
421 AM EDT Sat Sep 19 2026
.TODAY...NE to E winds 10 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 kt. Seas 3 ft or less.
.SUN...Variable winds less than 5 kt, becoming E 10 kt in the
afternoon. 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...W of 85W, SE winds 10 kt late. Variable
winds less than 5 kt in the evening. E of 85W, variable less than
5 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
.TUE NIGHT...Variable winds less than 5 kt. Seas 3 ft or less.
.WED...Variable winds less than 5 kt, becoming NE 10 kt in the
afternoon. Seas 3 ft or less.
.WED NIGHT...NE to E winds 10 kt. Seas 3 ft or less.
$$
GMZ058-192030-
W Central Gulf of America from 22N to 26N W of 94W-
421 AM EDT Sat Sep 19 2026
.TODAY...Variable winds less than 5 kt W of 96W, and NE 10 kt E
of 96W. Seas 2 to 4 ft.
.TONIGHT...E winds 10 kt. Seas 3 ft or less.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...E winds 10 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
.TUE NIGHT...E winds 10 kt. Seas 3 ft or less.
.WED...W of 96W, variable winds less than 5 kt, becoming NE 10 kt
in the afternoon. E of 96W, NE to E winds 10 kt. Seas 3 ft or
less.
.WED NIGHT...E winds 10 kt. Seas 3 ft or less.
$$
GMZ045-192030-
W Central Gulf of America from 22N to 26N between 91W and 94W-
421 AM EDT Sat Sep 19 2026
.TODAY...S of 24N, SE winds 10 kt in the morning, becoming
variable less than 5 kt. N of 24N, E to SE winds 10 kt. Seas 3 to
5 ft. Scattered showers and isolated tstms.
.TONIGHT...S of 24N, variable winds less than 5 kt, becoming E to
SE 10 kt late. N of 24N, E winds 10 to 15 kt. Seas 2 to
4 ft.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...E winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...NE to 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 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.
$$
GMZ046-192030-
Central Gulf of America from 22N to 26N between 87W and 91W-
421 AM EDT Sat Sep 19 2026
.TODAY...Variable winds less than 5 kt S of 24N, and E to SE
10 kt N of 24N. Seas 2 to 4 ft. Scattered showers and isolated
tstms.
.TONIGHT...S of 24N, variable winds less than 5 kt, becoming E to
SE 10 kt late. N of 24N, NE to E winds 10 kt. Seas 3 ft
or less.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...NE to E winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...E winds 10 kt. Seas 3 ft or less.
.TUE...SE winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 ft or less.
.TUE NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.WED...E winds 10 kt. Seas 2 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
$$
GMZ047-192030-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
421 AM EDT Sat Sep 19 2026
.TODAY...S of 24N, variable winds less than 5 kt. N of 24N, E
winds 10 kt in the morning, becoming variable less than 5 kt.
Seas 2 to 4 ft. Scattered showers and isolated tstms.
.TONIGHT...Variable winds less than 5 kt. Seas 3 ft or less.
Scattered showers and isolated tstms.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...Variable winds less than 5 kt, becoming SE 10 kt
late. 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.
.TUE...S winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 ft or less.
.TUE NIGHT...E to SE winds 10 kt. Seas 3 ft or less.
.WED...E winds 10 to 15 kt. Seas 2 to 4 ft.
.WED NIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft.
$$
GMZ048-192030-
SW Gulf of America S of 22N W of 94W-
421 AM EDT Sat Sep 19 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
.TONIGHT...N to NE winds 10 kt in the evening, becoming variable
less than 5 kt. Seas 3 ft or less.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...E winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...S of 21N W of 95W, NE to E winds 10 kt in the
evening, becoming variable less than 5 kt. Elsewhere, NE to E
winds 10 kt. Seas 3 ft or less.
.TUE...Variable winds less than 5 kt. Seas 3 ft or less.
.TUE NIGHT...NE winds 10 kt. Seas 3 ft or less.
.WED...Variable winds less than 5 kt, becoming N 10 kt in the
afternoon. Seas 3 ft or less.
.WED NIGHT...NE winds 10 kt. Seas 3 ft or less.
$$
GMZ049-192030-
Central Bay of Campeche-
421 AM EDT Sat Sep 19 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
.TONIGHT...N winds 10 kt S of 20N, and variable less than 5 kt N
of 20N. Seas 3 ft or less.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...NE winds 10 kt. Seas 3 ft or less.
.MON...Variable winds less than 5 kt. Seas 3 ft or less.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less.
.TUE...E winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 ft or less.
.TUE NIGHT...NE 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 winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ050-192030-
E Bay of Campeche including Campeche Bank-
421 AM EDT Sat Sep 19 2026
.TODAY...Variable winds less than 5 kt. Seas 3 ft or less.
.TONIGHT...N winds 10 kt, shifting to E late. Seas 3 ft
or less. Scattered showers and isolated tstms.
.SUN...Variable winds less than 5 kt. Seas 3 ft or less.
.SUN NIGHT...N to NE winds 10 kt, shifting to E to SE late. Seas
3 ft or less.
.MON...W of 90W, SE winds 10 kt in the morning, becoming variable
less than 5 kt. E of 90W, variable winds less than 5 kt, becoming
N to NE 10 kt in the afternoon. Seas 3 ft or less.
.MON NIGHT...N to NE winds 10 to 15 kt, shifting to E late. Seas
3 ft or less.
.TUE...SE winds 10 kt, shifting to N to NE in the afternoon. Seas
3 ft or less.
.TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.WED...E to SE winds 10 kt, shifting to NE in the afternoon. Seas
3 ft or less.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
$$
Forecaster Christensen
