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Offshore Marine Forecast


000

FZNT24 KNHC 181316

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

916 AM EDT Tue Aug 18 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.



GMZ001-190130-

Synopsis for the Gulf of America

916 AM EDT Tue Aug 18 2026



.SYNOPSIS...High pressure will prevail across the Gulf waters

through the week. A weak pressure pattern will support mostly 

gentle to moderate winds across much of the basin. A diurnally 

induced surface trough will generate fresh to locally strong winds

north and west of the Yucatan peninsula early each evening. These

winds will spread westward away from the Yucatan at night as the 

trough migrates into the SW Gulf. Slight to moderate seas are 

expected through the forecast period. 



$$



GMZ040-190130-

NW Gulf of America including Stetson Bank-

916 AM EDT Tue Aug 18 2026



.TODAY...Variable winds less than 5 kt. Seas 3 ft or less. 

.TONIGHT...SE to S winds 10 kt. Seas 3 ft or less. 

.WED...SE to S winds 10 to 15 kt. Seas 3 ft or less. 

.WED NIGHT...SE to S winds 10 to 15 kt. Seas 3 ft or less. 

.THU...S winds 10 to 15 kt. Seas 3 ft or less. 

.THU NIGHT...SE to S winds 10 to 15 kt. Seas 3 ft or less. 

.FRI...S winds 10 kt. Seas 3 ft or less. 

.FRI NIGHT...S winds 10 kt. Seas 3 ft or less. 

.SAT...S winds 10 kt in the morning, becoming variable less than

5 kt. Seas 3 ft or less. 

.SAT NIGHT...S winds 10 kt. Seas 3 ft or less. 



$$



GMZ041-190130-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

916 AM EDT Tue Aug 18 2026



.TODAY...Variable winds less than 5 kt. Seas 3 ft or less. 

.TONIGHT...Variable winds less than 5 kt, becoming S 10 kt late.

Seas 3 ft or less. 

.WED...S to SW winds 10 kt in the morning, becoming variable less

than 5 kt. Seas 3 ft or less. 

.WED NIGHT...SE to S winds 10 kt. Seas 3 ft or less. 

.THU...S to SW winds 10 kt. Seas 3 ft or less.

.THU NIGHT...Variable winds less than 5 kt, becoming S 10 kt

late. Seas 3 ft or less. 

.FRI...S to SW winds 10 kt in the morning, becoming variable less

than 5 kt. Seas 3 ft or less. 

.FRI NIGHT...S to SW winds 10 kt. Seas 3 ft or less. 

.SAT...SW winds 10 kt. Seas 3 ft or less. 

.SAT NIGHT...SW winds 10 kt. Seas 3 ft or less. 



$$



GMZ056-190130-

N Central Gulf of America Offshore Waters-

916 AM EDT Tue Aug 18 2026



.TODAY...Variable winds less than 5 kt W of 89W, and W to NW

10 kt E of 89W. Seas 3 ft or less. 

.TONIGHT...Variable winds less than 5 kt W of 89W, and W 10 kt E

of 89W. Seas 3 ft or less. 

.WED...W of 89W, SW winds 10 kt in the morning, becoming variable

less than 5 kt. E of 89W, W winds 10 kt. Seas 3 ft or less. 

.WED NIGHT...SW winds 10 kt. Seas 3 ft or less. 

.THU...W winds 10 kt. Seas 3 ft or less. 

.THU NIGHT...Variable winds less than 5 kt W of 89W, and W 10 kt

E of 89W. Seas 3 ft or less. 

.FRI...SW to W winds 10 kt. Seas 3 ft or less. 

.FRI NIGHT...W of 89W, variable winds less than 5 kt, becoming SW

10 kt late. E of 89W, SW to W winds 10 kt. Seas 3 ft or

less. 

.SAT...W winds 10 kt. Seas 3 ft or less. 

.SAT NIGHT...SW to W winds 10 kt. Seas 3 ft or less. 



$$



GMZ057-190130-

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

916 AM EDT Tue Aug 18 2026



.TODAY...W to NW winds 10 kt. Seas 3 ft or less. 

.TONIGHT...W winds 10 to 15 kt. Seas 3 ft or less. 

.WED...W to NW winds 10 kt. Seas 3 ft or less. Scattered showers

and isolated tstms. 

.WED NIGHT...W to NW winds 10 kt. Seas 3 ft or less. 

.THU...W to NW winds 10 kt. Seas 3 ft or less. 

.THU NIGHT...W to NW winds 10 kt. Seas 3 ft or less. 

.FRI...W winds 10 kt. Seas 3 ft or less. 

.FRI NIGHT...SW to W winds 10 kt. Seas 3 ft or less. 

.SAT...W winds 10 to 15 kt. Seas 3 ft or less. 

.SAT NIGHT...SW to W winds 10 kt. Seas 3 ft or less. 



$$



GMZ058-190130-

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

916 AM EDT Tue Aug 18 2026



.TODAY...E to SE winds 10 kt. Seas 3 ft or less. 

.TONIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. 

.WED...SE winds 10 kt. Seas 3 ft or less. 

.WED NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. 

.THU...SE winds 10 to 15 kt. Seas 3 ft or less. 

.THU NIGHT...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...SE winds 10 to 15 kt. Seas 3 ft or less. 

.SAT...SE winds 10 to 15 kt. Seas 3 ft or less. 

.SAT NIGHT...E to SE winds 10 kt. Seas 3 ft or less. 



$$



GMZ045-190130-

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

916 AM EDT Tue Aug 18 2026



.TODAY...E winds 10 kt. Seas 3 ft or less. 

.TONIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. 

.WED...SE winds 10 to 15 kt. Seas 3 ft or less. 

.WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. 

.THU...SE winds 10 to 15 kt. Seas 3 ft or less. 

.THU NIGHT...E to 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...E to SE winds 10 to 15 kt. Seas 3 ft or less. 

.SAT...S of 24N, E to SE winds 10 to 15 kt. N of 24N, SE winds

10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft

or less. 

.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. 



$$



GMZ046-190130-

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

916 AM EDT Tue Aug 18 2026



.TODAY...NE to E winds 10 kt. Seas 2 to 4 ft. 

.TONIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. 

.WED...S of 24N, E to SE winds 10 to 15 kt. N of 24N, E to SE

winds 10 kt in the morning, becoming variable less than 5 kt.

Seas 3 ft or less. 

.WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. 

.THU...S of 24N, E to SE winds 10 to 15 kt. N of 24N, SE to S

winds 10 kt in the morning, becoming variable less than 5 kt.

Seas 3 ft or less. 

.THU NIGHT...S of 24N, E winds 10 to 15 kt. N of 24N, variable

winds less than 5 kt, becoming E to SE 10 kt late. Seas

3 ft or less. 

.FRI...S of 24N, E winds 10 to 15 kt. N of 24N, SE to S winds

10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft

or less. 

.FRI NIGHT...S of 24N, E winds 10 to 15 kt. N of 24N, variable

winds less than 5 kt, becoming SE 10 kt late. Seas 3 ft

or less. 

.SAT...E winds 10 kt S of 24N, and variable less than 5 kt N of

24N. Seas 3 ft or less. 

.SAT NIGHT...E winds 10 to 15 kt S of 24N, and variable less than

5 kt N of 24N. Seas 3 ft or less. 



$$



GMZ047-190130-

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

Florida-

916 AM EDT Tue Aug 18 2026



.TODAY...NE to E winds 10 kt S of 24N, and variable less than

5 kt N of 24N. Seas 2 to 4 ft. 

.TONIGHT...S of 24N, NE to E winds 10 kt. N of 24N, NE winds

10 kt in the evening, becoming variable less than 5 kt. Seas 2 to

4 ft. 

.WED...Variable winds less than 5 kt, becoming N to NE 10 kt in

the afternoon. Seas 3 ft or less. 

.WED NIGHT...S of 24N, NE winds 10 kt. N of 24N, N winds 10 kt in

the evening, becoming variable less than 5 kt. Seas 3 ft or less.

.THU...NE to E winds 10 kt S of 24N, and variable less than 5 kt

N of 24N. Seas 3 ft or less. 

.THU NIGHT...S of 24N, NE to E winds 10 kt. N of 24N, N winds

10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft

or less. 

.FRI...NE to E winds 10 kt S of 24N, and variable less than 5 kt

N of 24N. Seas 3 ft or less. 

.FRI NIGHT...NE to E winds 10 kt S of 24N, and variable less than

5 kt N of 24N. Seas 3 ft or less. 

.SAT...S of 24N, NE winds 10 kt in the afternoon. Variable winds

less than 5 kt in the morning. N of 24N, variable less than 5 kt.

Seas 3 ft or less. 

.SAT NIGHT...NE to E winds 10 kt S of 24N, and variable less than

5 kt N of 24N. Seas 3 ft or less. 



$$



GMZ048-190130-

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

916 AM EDT Tue Aug 18 2026



.TODAY...S of 21N W of 95W, variable winds less than 5 kt,

becoming N 10 kt in the afternoon. Elsewhere, NE winds 10 kt.

Seas 3 ft or less. Scattered showers and isolated tstms. 

.TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less. Scattered

showers and isolated tstms. 

.WED...S of 21N W of 95W, SE winds 10 kt in the morning, becoming

variable less than 5 kt. Elsewhere, E to SE winds 10 kt. Seas

3 ft or less. 

.WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. 

.THU...S of 21N W of 95W, E to SE winds 10 kt in the morning,

becoming variable less than 5 kt. Elsewhere, E to SE winds 10 to

15 kt. Seas 3 ft or less. 

.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. 

.FRI...E winds 10 to 15 kt. Seas 2 to 4 ft. 

.FRI NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. 

.SAT...NE to E winds 10 kt. Seas 3 ft or less. 

.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. 



$$



GMZ049-190130-

Central Bay of Campeche-

916 AM EDT Tue Aug 18 2026



.TODAY...E winds 10 to 15 kt. Seas 3 ft or less. Scattered

showers and isolated tstms. 

.TONIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.

Scattered showers and isolated tstms. 

.WED...E to SE winds 10 to 15 kt. Seas 3 ft or less. 

.WED NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft. 

.THU...E to SE winds 15 to 20 kt, diminishing to 10 kt in the

afternoon. Seas 2 to 4 ft. 

.THU NIGHT...NE 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...NE to 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 3 ft or less. 



$$



GMZ050-190130-

E Bay of Campeche including Campeche Bank-

916 AM EDT Tue Aug 18 2026



.TODAY...E winds 10 kt. Seas 3 ft or less. 

.TONIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less. 

.WED...E winds 10 to 15 kt. Seas 3 ft or less. 

.WED NIGHT...NE winds 15 to 20 kt, shifting to E late.

Seas 2 to 4 ft. 

.THU...SE winds 10 to 15 kt, shifting to NE to E in the

afternoon. Seas 3 ft or less. 

.THU NIGHT...NE winds 15 to 20 kt, shifting to E late.

Seas 2 to 4 ft. 

.FRI...E to SE winds 10 to 15 kt, shifting to NE in the

afternoon. Seas 2 to 4 ft. 

.FRI NIGHT...NE winds 15 to 20 kt, shifting to E to SE late. Seas

2 to 4 ft. 

.SAT...E to SE winds 10 to 15 kt, shifting to NE in the

afternoon. Seas 2 to 4 ft. 

.SAT NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft or less. 



$$



Forecaster AL
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