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Offshore Marine Forecast


000

FZNT24 KNHC 081501

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

1101 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.



GMZ001-090315-

Synopsis for the Gulf of America

1101 AM EDT Thu Oct 8 2026



.SYNOPSIS...Hurricane Isaias is near 23.7N 90.2W, or about

150 nm north of Progreso, Mexico at 11 AM EDT, and is moving 

east-northeast at 9 kt. Maximum sustained winds are 75 kt with 

gusts to 90 kt, and the minimum central pressure is 975 mb. Isaias

will move to near 24.9N 89.0W this evening with maximum sustained

winds 90 kt gusts 110 kt, to near 27.1N 87.9W Fri morning, and 

begin to weaken as it moves to near 29.6N 87.4W Fri evening with 

maximum sustained winds 85 kt gusts 105 kt. Isaias is forecast to 

move well inland and weaken to a tropical storm near 32.3N 87.8W 

Sat morning, then dissipate early on Mon. Swells will affect the 

western and northern portions of the Yucatan Peninsula beginning 

later today and spread northward toward the Gulf Coast on Fri. In 

the wake of Isaias, weak high pressure will develop over the 

north- central Gulf by Sun evening resulting in moderate or weaker

return flow over the western Gulf through midweek. 



$$



GMZ040-090315-

NW Gulf of America including Stetson Bank-

1101 AM EDT Thu Oct 8 2026



.TODAY...NE winds 20 to 25 kt. Seas 6 to 8 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. 



$$



GMZ041-090315-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

1101 AM EDT Thu Oct 8 2026



.TODAY...NE winds 20 to 25 kt. Seas 6 to 8 ft. Scattered showers

and isolated thunderstorms. 

.TONIGHT...NE winds 20 to 25 kt. Seas 7 to 10 ft in NE to E

swell. Scattered showers and isolated thunderstorms. 

.FRI...N to NE winds 25 to 30 kt. Seas 9 to 14 ft in NE to E

swell. 

.FRI NIGHT...N to NE winds 20 to 25 kt. Seas 10 to 16 ft in E

swell. 

.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. 



$$



GMZ056-090315-

N Central Gulf of America Offshore Waters-

1101 AM EDT Thu Oct 8 2026



...HURRICANE WARNING...



.TODAY...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to

25 kt. Seas 6 to 8 ft. Numerous showers and thunderstorms.

.TONIGHT...HURRICANE CONDITIONS EXPECTED. W of 89W, NE winds

35 to 45 kt. E of 89W, E winds 35 to 40 kt, increasing to 65 to

85 kt late. Seas 7 to 10 ft, building to 14 to 21 ft in

SE swell late. Numerous squalls and thunderstorms.

.FRI...HURRICANE CONDITIONS EXPECTED. W of 89W, N winds 30 to

35 kt. E of 89W, NE to E winds 70 to 90 kt, shifting to W to NW

65 to 85 kt in the afternoon. Seas 22 to 34 ft in E swell.

Numerous squalls and thunderstorms. 

.FRI NIGHT...HURRICANE CONDITIONS EXPECTED. W of 89W, N winds

20 to 25 kt, becoming NW to N 10 to 15 kt late. E of

89W, W winds 55 to 65 kt, becoming SW 20 to 25 kt late.

Seas 24 to 36 ft in NE swell, subsiding to 14 to 21 ft in SW

swell late. Scattered showers and thunderstorms. 

.SAT...NW winds 10 kt W of 89W, and SW 15 to 20 kt E of 89W. Seas

10 to 15 ft in NW swell. Scattered showers and isolated

thunderstorms. 

.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 4 to 6 ft. 

.SUN NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. 

.MON...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. 



$$



GMZ057-090315-

NE Gulf of America N of 26N E of 87W-

1101 AM EDT Thu Oct 8 2026



...HURRICANE WARNING...



.TODAY...SE winds 15 to 20 kt. Seas 5 to 7 ft. Scattered to 

numerous showers and thunderstorms. 

.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 85W, E winds

20 to 25 kt, becoming 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. Numerous squalls and thunderstorms.

.FRI...TROPICAL STORM CONDITIONS EXPECTED. W of 85W, SE to S

winds 35 to 45 kt, becoming 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. Numerous 

squalls and thunderstorms. 

.FRI NIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 85W, S

winds 50 to 60 kt, diminishing to 20 to 25 kt late. E

of 85W, SE to S winds 25 to 30 kt. Seas 23 to 35 ft in SW swell,

subsiding to 14 to 22 ft in SW swell late. Numerous squalls and 

thunderstorms. 

.SAT...S winds 20 to 25 kt. Seas 10 to 15 ft in SW to W swell.

Scattered showers and thunderstorms. 

.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. Scattered showers

and isolated thunderstorms. 

.SUN...W winds 10 to 15 kt. Seas 4 to 6 ft in SW swell. 

.SUN NIGHT...N winds 10 kt. Seas 3 to 4 ft. 

.MON...N to NE winds 10 to 15 kt. Seas 3 to 4 ft. 



$$



GMZ058-090315-

W Central Gulf of America from 22N to 26N W of 94W-

1101 AM EDT Thu Oct 8 2026



.TODAY...N winds 20 to 25 kt, except 25 to 30 kt E of 95w. Seas

4 to 6 ft W of 95W and 6 to 8 ft E of 95W. Isolated showers and 

thunderstorms.

.TONIGHT...N winds 20 to 25 kt. Seas 6 to 9 ft in E swell. 

Isolated showers and thunderstorms.

.FRI...N winds 15 to 20 kt. Seas 6 to 9 ft in E swell. Isolated 

showers and thunderstorms.

.FRI NIGHT...N to NE 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 4 to 6 ft. 

.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 



$$



GMZ045-090315-

W Central Gulf of America from 22N to 26N between 91W and 94W-

1101 AM EDT Thu Oct 8 2026



...HURRICANE WARNING...



.TODAY...TROPICAL STORM CONDITIONS POSSIBLE. N to NE winds 50 to

70 kt, becoming N 30 to 35 kt in the afternoon. Seas 11 to 18 ft.

Scattered showers and thunderstorms E of 92W.

.TONIGHT...N winds 20 to 25 kt. Seas 9 to 14 ft in NE to E swell.

Isolated showers and thunderstorms. 

.FRI...NW to N winds 15 to 20 kt. Seas 9 to 14 ft in NE to E

swell. Isolated showers and thunderstorms. 

.FRI NIGHT...N to NE winds 15 to 20 kt. Seas 9 to 13 ft in NE

swell. 

.SAT...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. 



$$



GMZ046-090315-

Central Gulf of America from 22N to 26N between 87W and 91W-

1101 AM EDT Thu Oct 8 2026



...HURRICANE WARNING...



.TODAY...HURRICANE CONDITIONS. SW to W winds 50 to 70 kt S of

24N, and E to SE 55 to 75 kt N of 24N. Seas 16 to 25 ft in SW to

W swell. Numerous squalls and thunderstorms.

.TONIGHT...HURRICANE CONDITIONS EXPECTED. S of 24N, SW to W

winds 25 to 30 kt. N of 24N, E winds 65 to 85 kt, becoming 

W to NW 70 to 80 kt late. Seas 19 to 29 ft in W to NW swell. 

Numerous squalls and thunderstorms. 

.FRI...TROPICAL STORM CONDITIONS EXPECTED. S of 24N, SW to W

winds 15 to 20 kt. N of 24N, W to NW winds 30 to 35 kt, becoming

W 20 to 25 kt in the afternoon. 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 thunderstorms N and NE parts. 

.FRI NIGHT...W winds 10 to 15 kt, becoming S to SW 15 to 20 kt 

late. Seas 10 to 15 ft in N to NE swell. Scattered showers and 

isolated thunderstorms. 

.SAT...SW winds 15 to 20 kt. Seas 9 to 14 ft in NW to N swell.

Scattered showers and isolated thunderstorms. 

.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 3 to 5 ft.

.SUN NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft.

.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 



$$



GMZ047-090315-

SE Gulf of America from 22N to 26N E of 87W including Straits of

Florida-

1101 AM EDT Thu Oct 8 2026



...TROPICAL STORM WARNING N OF 24N...



.TODAY...S winds 15 to 20 kt. Seas 4 to 6 ft. Isolated showers 

and thunderstorms. 

.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, becoming S

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 thunderstorms.

.FRI...TROPICAL STORM CONDITIONS POSSIBLE. S winds 15 to 20 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 thunderstorms. 

.FRI NIGHT...S winds 15 to 20 kt. Seas 9 to 13 ft in SW to W

swell. Scattered showers and isolated thunderstorms. 

.SAT...S winds 15 to 20 kt. Seas 8 to 12 ft in W to NW swell.

Scattered showers and isolated thunderstorms.

.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. Scattered showers

and isolated thunderstorms. 

.SUN...SE winds 10 kt. Seas 3 to 5 ft in NW swell. 

.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. 

.MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. 



$$



GMZ048-090315-

SW Gulf of America S of 22N W of 94W-

1101 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 thunderstorms.

.TONIGHT...NW winds 15 to 20 kt. Seas 6 to 9 ft in NE swell.

Scattered showers and isolated thunderstorms. 

.FRI...NW winds 20 to 25 kt. Seas 5 to 7 ft. Scattered showers

and isolated thunderstorms. 

.FRI NIGHT...NW to N winds 15 to 20 kt. Seas 6 to 8 ft. Scattered

showers and isolated thunderstorms. 

.SAT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in NE swell.

Scattered showers and isolated thunderstorms. 

.SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft in NE swell.

Scattered showers and isolated thunderstorms.

.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. 



$$



GMZ049-090315-

Central Bay of Campeche-

1101 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 thunderstorms. 

.TONIGHT...W to NW winds 15 to 20 kt. Seas 7 to 10 ft in N to NE

swell. Scattered showers and thunderstorms. 

.FRI...W to NW winds 10 to 15 kt. Seas 6 to 8 ft in N to NE

swell. Scattered showers and isolated thunderstorms. 

.FRI NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft in N to NE

swell. Scattered showers and isolated thunderstorms. 

.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 3 to 5 ft. 

.MON...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. 



$$



GMZ050-090315-

E Bay of Campeche including Campeche Bank-

1101 AM EDT Thu Oct 8 2026



.TODAY...SW to W winds 20 to 25 kt. Seas 9 to 14 ft in NW swell.

Isolated showers and thunderstorms.

.TONIGHT...SW to W winds 15 to 20 kt. Seas 8 to 12 ft in NW to N

swell. Scattered showers and isolated thunderstorms. 

.FRI...SW to W winds 10 to 15 kt. Seas 6 to 9 ft in NW to N

swell. Scattered showers and isolated thunderstorms. 

.FRI NIGHT...W to NW winds 10 kt, shifting to SW late.

Seas 6 to 8 ft in N swell. 

.SAT...SW winds 10 to 15 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. Scattered showers and isolated

thunderstorms. 

.SUN...E to SE winds 10 kt. Seas 3 to 4 ft. 

.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 



$$



Forecaster Aguirre
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