Offshore Marine Forecast
000
FZNT24 KNHC 080905
OFFNT4
Offshore Waters Forecast for the Gulf of America
NWS National Hurricane Center Miami, FL
505 AM EDT Thu Oct 8 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.
GMZ001-082115-
Synopsis for the Gulf of America
505 AM EDT Thu Oct 8 2026
.SYNOPSIS...Hurricane Isaias is near 23.3N 91.2W at 5 AM EDT, and
is moving east-northeast at 8 kt. Maximum sustained winds are 70
kt with gusts to 85 kt, and the minimum central pressure is 979
mb. Isaias will move to 24.2N 90.0W this afternoon, 25.9N 88.6W
Fri morning, 28.4N 87.6W Fri afternoon, move inland and weaken to
a tropical storm near 31.0N 87.6W Sat morning, move inland and
weaken to a tropical depression near 33.7N 88.5W Sat afternoon,
and inland to 36.0N 88.7W Sun morning. Isaias will dissipate early
Mon. Swells will affect the western and northern portions of the
Yucatan Peninsula beginning later today and spread northward
toward the Gulf Coast on Friday. These swells are likely to cause
life-threatening surf and rip current conditions. In the wake of
Isaias, weak high pressure will develop over the north-central
Gulf by Sun evening, providing moderate or weaker return flow
through midweek.
$$
GMZ040-082115-
NW Gulf of America including Stetson Bank-
505 AM EDT Thu Oct 8 2026
.TODAY...NE winds 20 to 25 kt. Seas 5 to 7 ft.
.TONIGHT...NE winds 20 to 25 kt. Seas 6 to 8 ft in E swell.
.FRI...N to NE winds 15 to 20 kt. Seas 7 to 10 ft in NE to E
swell.
.FRI NIGHT...NE winds 15 to 20 kt. Seas 7 to 11 ft in E swell.
.SAT...N to NE winds 10 to 15 kt. Seas 7 to 10 ft in NE to E
swell.
.SAT NIGHT...NE winds 10 to 15 kt, shifting to E to SE late. Seas
5 to 7 ft.
.SUN...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SE winds 15 to 20 kt. Seas 3 ft or less.
.MON...SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ041-082115-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
505 AM EDT Thu Oct 8 2026
.TODAY...NE winds 20 to 25 kt. Seas 6 to 8 ft. Scattered showers
and isolated tstms.
.TONIGHT...NE winds 20 to 25 kt. Seas 7 to 10 ft in NE to E
swell. Scattered showers and isolated tstms.
.FRI...NE winds 25 to 30 kt. Seas 9 to 14 ft in NE to E swell.
Scattered showers and isolated tstms.
.FRI NIGHT...N to NE winds 25 to 30 kt, diminishing to 15 to
20 kt late. Seas 10 to 16 ft in E swell. Scattered
showers and isolated tstms.
.SAT...N winds 10 to 15 kt. Seas 9 to 14 ft in NE to E swell,
subsiding to 7 to 10 ft in NE to E swell in the afternoon.
.SAT NIGHT...N to NE winds 10 to 15 kt, shifting to E late. Seas
5 to 7 ft in E swell.
.SUN...E to SE winds 10 to 15 kt. Seas 3 to 5 ft, subsiding to
3 ft or less in the afternoon.
.SUN NIGHT...E to SE winds 15 to 20 kt. Seas 3 ft or less.
.MON...E to SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ056-082115-
N Central Gulf of America Offshore Waters-
505 AM EDT Thu Oct 8 2026
...HURRICANE WARNING...
.TODAY...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to
25 kt. Seas 6 to 8 ft. Scattered showers and isolated tstms.
.TONIGHT...HURRICANE CONDITIONS EXPECTED. W of 89W, NE to E
winds 35 to 40 kt, becoming NE 50 to 60 kt late. E of
89W, E winds 35 to 40 kt, increasing to 70 to 90 kt late. Seas
7 to 10 ft, building to 14 to 21 ft in SE swell
late. Numerous showers and scattered tstms.
.FRI...HURRICANE CONDITIONS EXPECTED. W of 89W, N winds 35 to
40 kt, diminishing to 25 to 30 kt in the afternoon. E of 89W, E
to SE winds 70 to 90 kt, shifting to SW to W 75 to 85 kt in the
afternoon. Seas 22 to 34 ft in E swell. Numerous showers and
scattered tstms.
.FRI NIGHT...HURRICANE CONDITIONS EXPECTED. W of 89W, NW winds
20 to 25 kt. E of 89W, SW to W winds 50 to 60 kt, becoming SW
25 to 30 kt late. Seas 24 to 36 ft in NE swell,
subsiding to 14 to 21 ft in SW swell late. Scattered
showers and isolated tstms.
.SAT...NW winds 10 to 15 kt W of 89W, and SW 15 to 20 kt E of
89W. Seas 10 to 15 ft in NW swell.
.SAT NIGHT...NW winds 10 to 15 kt. Seas 7 to 11 ft in W swell,
subsiding to 5 to 7 ft in SE to S swell late.
.SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less.
.MON...NE to E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ057-082115-
NE Gulf of America N of 26N E of 87W-
505 AM EDT Thu Oct 8 2026
...TROPICAL STORM WARNING...
.TODAY...SE winds 15 to 20 kt. Seas 5 to 7 ft. Numerous showers
and scattered tstms.
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 85W, E winds
15 to 20 kt, becoming E to SE 30 to 35 kt late. E of
85W, E to SE winds 15 to 20 kt. Seas 5 to 7 ft, building to 8 to
12 ft in S to SW swell late. Scattered tstms.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. W of 85W, SE winds
40 to 45 kt, becoming SE to S 50 to 60 kt in the afternoon. E of
85W, SE to S winds 20 to 25 kt. Seas 16 to 25 ft in SW swell,
building to 21 to 32 ft in SW swell in the afternoon. Scattered
tstms.
.FRI NIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 85W, S
winds 45 to 55 kt, diminishing to 25 to 30 kt late. E
of 85W, SE to S winds 20 to 25 kt. Seas 23 to 35 ft in SW swell,
subsiding to 14 to 22 ft in SW swell late. Scattered
showers and isolated tstms.
.SAT...S winds 20 to 25 kt. Seas 10 to 15 ft in SW to W swell.
.SAT NIGHT...S to SW winds 15 to 20 kt. Seas 7 to 11 ft in W
swell, subsiding to 5 to 7 ft late.
.SUN...W winds 10 to 15 kt. Seas 4 to 6 ft in SW swell.
.SUN NIGHT...N winds 10 kt. Seas 2 to 4 ft.
.MON...N to NE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ058-082115-
W Central Gulf of America from 22N to 26N W of 94W-
505 AM EDT Thu Oct 8 2026
...TROPICAL STORM WARNING...
.TODAY...N winds 15 to 20 kt. Seas 6 to 8 ft in E swell.
Scattered showers and isolated tstms.
.TONIGHT...N winds 20 to 25 kt. Seas 6 to 9 ft in E swell.
.FRI...N winds 15 to 20 kt. Seas 6 to 9 ft in E swell.
.FRI NIGHT...N winds 15 to 20 kt. Seas 7 to 10 ft in NE to E
swell.
.SAT...N to NE winds 10 to 15 kt. Seas 7 to 10 ft in NE to E
swell.
.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...E to SE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ045-082115-
W Central Gulf of America from 22N to 26N between 91W and 94W-
505 AM EDT Thu Oct 8 2026
...HURRICANE WARNING...
.TODAY...TROPICAL STORM CONDITIONS. N to NE winds 50 to 60 kt,
becoming N 30 to 35 kt in the afternoon. Seas 12 to 19 ft.
Scattered showers and isolated tstms.
.TONIGHT...N winds 20 to 25 kt. Seas 9 to 14 ft in NE to E swell.
Scattered showers and isolated tstms.
.FRI...NW to N winds 15 to 20 kt. Seas 9 to 14 ft in NE to E
swell. Scattered showers and isolated tstms.
.FRI NIGHT...NW to N winds 15 to 20 kt. Seas 9 to 13 ft in NE
swell.
.SAT...NW to N winds 10 to 15 kt. Seas 7 to 11 ft in NE swell.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft in N to NE
swell.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less.
.MON...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ046-082115-
Central Gulf of America from 22N to 26N between 87W and 91W-
505 AM EDT Thu Oct 8 2026
...HURRICANE WARNING...
.TODAY...HURRICANE CONDITIONS. S of 24N, S winds 60 to 70 kt,
becoming S to SW 45 to 55 kt in the afternoon. N of 24N, SE winds
50 to 60 kt, becoming E to SE 70 to 80 kt in the afternoon. Seas
16 to 24 ft in SW to W swell. Numerous showers and scattered
tstms.
.TONIGHT...HURRICANE CONDITIONS EXPECTED. S of 24N, SW winds
25 to 30 kt. N of 24N, E to SE winds 65 to 85 kt, shifting to W
70 to 90 kt late. Seas 19 to 29 ft in W to NW swell.
Scattered showers and isolated tstms.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. SW to W winds 20 to
25 kt S of 24N, and W 30 to 35 kt N of 24N. Seas 22 to 33 ft in
NW to N swell, subsiding to 12 to 18 ft in N swell in the
afternoon. Scattered showers and isolated tstms.
.FRI NIGHT...S to SW winds 15 to 20 kt S of 24N, and SW 20 to
25 kt N of 24N. Seas 10 to 15 ft in N to NE swell. Scattered
showers and isolated tstms.
.SAT...SW winds 15 to 20 kt. Seas 9 to 14 ft in NW to N swell.
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in NW to N
swell, subsiding to 3 to 5 ft late.
.SUN...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN NIGHT...E winds 15 to 20 kt. Seas 3 ft or less.
.MON...E winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ047-082115-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
505 AM EDT Thu Oct 8 2026
...TROPICAL STORM WARNING...
.TODAY...S winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers
and isolated tstms.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S of 24N, SE to S
winds 20 to 25 kt. N of 24N, SE winds 20 to 25 kt, increasing to
30 to 35 kt late. Seas 6 to 9 ft in W swell, building
to 12 to 18 ft in W swell late. Scattered showers and
isolated tstms.
.FRI...TROPICAL STORM CONDITIONS POSSIBLE. S winds 20 to 25 kt S
of 24N, and S 25 to 30 kt N of 24N. Seas 14 to 21 ft in W swell.
Scattered showers and isolated tstms.
.FRI NIGHT...SE to S winds 20 to 25 kt. Seas 9 to 13 ft in SW to
W swell. Scattered showers and isolated tstms.
.SAT...S winds 15 to 20 kt. Seas 8 to 12 ft in W to NW swell.
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in NW
swell, subsiding to 4 to 6 ft late.
.SUN...SE winds 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.MON...NE winds 10 to 15 kt. Seas 3 ft or less.
$$
GMZ048-082115-
SW Gulf of America S of 22N W of 94W-
505 AM EDT Thu Oct 8 2026
.TODAY...NW winds 20 to 25 kt. Seas 6 to 8 ft in N to NE swell.
Scattered showers and isolated tstms.
.TONIGHT...NW winds 15 to 20 kt. Seas 6 to 9 ft in NE swell.
Scattered showers and isolated tstms.
.FRI...NW winds 20 to 25 kt. Seas 5 to 7 ft. Scattered showers
and isolated tstms.
.FRI NIGHT...NW winds 15 to 20 kt. Seas 6 to 8 ft in NE swell.
Scattered showers and isolated tstms.
.SAT...NW winds 10 to 15 kt. Seas 5 to 7 ft in NE swell.
.SAT NIGHT...N to NE winds 10 to 15 kt. Seas 5 to 7 ft in NE
swell.
.SUN...NW to N winds 10 kt, shifting to NE in the afternoon. Seas
3 to 5 ft.
.SUN NIGHT...E winds 10 kt. Seas 2 to 4 ft.
.MON...E to SE winds 10 kt. Seas 3 ft or less.
$$
GMZ049-082115-
Central Bay of Campeche-
505 AM EDT Thu Oct 8 2026
.TODAY...W to NW winds 15 to 20 kt. Seas 8 to 12 ft in N swell.
Scattered showers and isolated tstms.
.TONIGHT...W to NW winds 15 to 20 kt. Seas 7 to 10 ft in N to NE
swell. Scattered showers and isolated tstms.
.FRI...W to NW winds 10 to 15 kt. Seas 6 to 8 ft in N to NE
swell. Scattered showers and isolated tstms.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft in N to NE
swell. Scattered showers and isolated tstms.
.SAT...NW winds 10 kt. Seas 5 to 7 ft in N to NE swell.
.SAT NIGHT...N to NE winds 10 kt, shifting to E to SE late. Seas
4 to 6 ft in N to NE swell.
.SUN...Variable winds less than 5 kt, becoming E 10 kt in the
afternoon. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
$$
GMZ050-082115-
E Bay of Campeche including Campeche Bank-
505 AM EDT Thu Oct 8 2026
.TODAY...SW winds 25 to 30 kt. Seas 9 to 14 ft in NW swell.
Scattered showers and isolated tstms.
.TONIGHT...SW to W winds 15 to 20 kt. Seas 8 to 12 ft in NW to N
swell. Scattered showers and isolated tstms.
.FRI...SW to W winds 10 to 15 kt. Seas 6 to 9 ft in NW to N
swell. Scattered showers and isolated tstms.
.FRI NIGHT...W winds 10 to 15 kt, shifting to S to SW late. Seas
6 to 8 ft in N swell. Scattered showers and
isolated tstms.
.SAT...SW winds 10 kt. Seas 5 to 7 ft in N swell.
.SAT NIGHT...NE winds 10 to 15 kt, shifting to SE late.
Seas 4 to 6 ft in N swell.
.SUN...E to SE winds 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.MON...E winds 10 to 15 kt. Seas 2 to 4 ft.
$$
Forecaster Ramos
