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Offshore Marine Forecast


000

FZNT24 KNHC 181915

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

315 PM 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.



GMZ001-190715-

Synopsis for the Gulf of America

315 PM EDT Tue Aug 18 2026



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

through the remainder of the week into the weekend. 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. 



$$



GMZ040-190715-

NW Gulf of America including Stetson Bank-

315 PM EDT Tue Aug 18 2026



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

.WED...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 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 to SW 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. 

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

than 5 kt. Seas 3 ft or less. 

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



$$



GMZ041-190715-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

315 PM EDT Tue Aug 18 2026



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

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

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

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

.SUN NIGHT...W of 92W, variable winds less than 5 kt, becoming SW

10 kt late. E of 92W, NW winds 10 kt in the evening,

becoming variable less than 5 kt. Seas 3 ft or less. 



$$



GMZ056-190715-

N Central Gulf of America Offshore Waters-

315 PM EDT Tue Aug 18 2026



.TONIGHT...Variable winds less than 5 kt W of 89W, and SW to 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 to 15 kt. Seas 3 ft or less.

.WED NIGHT...Variable winds less than 5 kt, becoming SW 10 kt

late. Seas 3 ft or less. 

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

less than 5 kt. E of 89W, W to NW winds 10 to 15 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...SW to W winds 10 kt. Seas 3 ft or less. 

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

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

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

.SUN NIGHT...W winds 10 kt in the evening, becoming variable less

than 5 kt. Seas 3 ft or less. 



$$



GMZ057-190715-

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

315 PM EDT Tue Aug 18 2026



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

.WED...W to NW winds 10 to 15 kt. Seas 3 ft or less. Scattered

showers and isolated tstms. 

.WED NIGHT...NW winds 15 to 20 kt, shifting to W 10 kt late. Seas

3 ft or less. 

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

and isolated tstms. 

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

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

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

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



$$



GMZ058-190715-

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

315 PM EDT Tue Aug 18 2026



.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 kt. Seas 3 ft or less. 

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

.SUN...W of 96W, SE to S winds 10 kt. E of 96W, SE to S winds

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

or less. 

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



$$



GMZ045-190715-

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

315 PM EDT Tue Aug 18 2026



.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 3 ft or less. 

.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 to S

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

Seas 3 ft or less. 

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

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

5 kt. Seas 3 ft or less. 

.SUN NIGHT...S of 24N, E winds 10 kt. N of 24N, variable winds

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

less. 



$$



GMZ046-190715-

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

315 PM EDT Tue Aug 18 2026



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

.WED...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. 

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

.FRI...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. 

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

.SAT...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 S of 24N, and variable less than

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

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

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

N of 24N. Seas 3 ft or less. 



$$



GMZ047-190715-

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

Florida-

315 PM EDT Tue Aug 18 2026



.TONIGHT...S of 24N, NE to E winds 10 to 15 kt. N of 24N, NE

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

Seas 2 to 4 ft. 

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

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

N of 24N. 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. 

.SUN...Variable winds less than 5 kt. Seas 3 ft or less in NW to

N swell, subsiding to 3 ft or less in the afternoon. 

.SUN NIGHT...S of 24N, NE winds 10 kt in the evening. Variable

winds less than 5 kt late. N of 24N, variable winds

less than 5 kt in the evening. Seas 3 ft or less. 



$$



GMZ048-190715-

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

315 PM EDT Tue Aug 18 2026



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

showers and isolated tstms. 

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

variable less than 5 kt. Elsewhere, E winds 10 kt. Seas 3 ft or

less. 

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

.THU...E 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 3 ft or less. 

.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. 

.SUN...SE winds 10 kt, shifting to NE in the afternoon. Seas 3 ft

or less. 

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



$$



GMZ049-190715-

Central Bay of Campeche-

315 PM EDT Tue Aug 18 2026



.TONIGHT...NE 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 15 to 20 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. 

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

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



$$



GMZ050-190715-

E Bay of Campeche including Campeche Bank-

315 PM EDT Tue Aug 18 2026



.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 to E winds 15 to 20 kt. 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 to E winds 15 to 20 kt. Seas 2 to 4 ft. 

.FRI...W of 90W, E to SE winds 15 to 20 kt, shifting to E 10 kt

in the afternoon. E of 90W, NE to E winds 10 kt. Seas 2 to 4 ft. 

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

Seas 3 ft or less. 

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

afternoon. Seas 3 ft or less. 

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

.SUN...W of 90W, SE winds 10 to 15 kt, shifting to N to NE in the

afternoon. E of 90W, variable winds less than 5 kt, becoming N to

NE 10 kt in the afternoon. Seas 3 ft or less. 

.SUN NIGHT...W of 90W, NE winds 10 to 15 kt, shifting to E to SE

late. E of 90W, E winds 10 kt in the evening, becoming

variable less than 5 kt. Seas 3 ft or less. 



$$



Forecaster AL
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