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Offshore Marine Forecast


000

FZNT24 KNHC 180853

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

453 AM EDT Thu Sep 18 2025



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.



GMZ001-182100-

Synopsis for the Gulf of America

453 AM EDT Thu Sep 18 2025



.SYNOPSIS...High pressure centered north of the region will

dominate the basin into the weekend, supporting gentle to

moderate east winds along with slight seas. A mid and upper

level trough over the far SE basin will bring showers and

thunderstorms to this area for the remainder of the week. 



$$



GMZ040-182100-

NW Gulf of America including Stetson Bank-

453 AM EDT Thu Sep 18 2025



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

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

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

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

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

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

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

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

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

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



$$



GMZ041-182100-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

453 AM EDT Thu Sep 18 2025



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

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

.FRI...E winds 10 kt. Seas 3 ft or less. Scattered showers and

isolated tstms. 

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

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

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

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

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



$$



GMZ056-182100-

N Central Gulf of America Offshore Waters-

453 AM EDT Thu Sep 18 2025



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

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

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

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

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

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

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

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

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

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



$$



GMZ057-182100-

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

453 AM EDT Thu Sep 18 2025



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

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

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

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

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

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

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

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

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

.MON NIGHT...E winds 10 kt. Seas 3 ft or less. 



$$



GMZ058-182100-

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

453 AM EDT Thu Sep 18 2025



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

and isolated tstms. 

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

and isolated tstms. 

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

and isolated tstms. 

.FRI NIGHT...E winds 10 kt. Seas 3 ft or less. Scattered showers

and isolated tstms. 

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

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

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

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

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

.MON NIGHT...SE winds 10 kt. Seas 3 ft or less. 



$$



GMZ045-182100-

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

453 AM EDT Thu Sep 18 2025



.TODAY...E 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. 

.FRI...E winds 10 kt. Seas 3 ft or less. Scattered showers and

isolated tstms. 

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

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

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

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

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

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

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



$$



GMZ046-182100-

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

453 AM EDT Thu Sep 18 2025



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

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

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

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

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

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

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



$$



GMZ047-182100-

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

Florida-

453 AM EDT Thu Sep 18 2025



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

and isolated tstms. 

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

Scattered showers and isolated tstms. 

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

and isolated tstms. 

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

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

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

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



$$



GMZ048-182100-

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

453 AM EDT Thu Sep 18 2025



.TODAY...N winds 10 kt. Seas 3 ft or less. Scattered showers and

isolated tstms. 

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

and isolated tstms. 

.FRI...N to NE winds 10 kt. Seas 3 ft or less. Scattered showers

and isolated tstms. 

.FRI NIGHT...NE winds 10 kt. Seas 3 ft or less. Scattered showers

and isolated tstms. 

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

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

.SUN...N to NE winds 10 kt in the morning, becoming variable less

than 5 kt. Seas 3 ft or less. 

.SUN NIGHT...NE to E winds 10 kt, shifting to SE late.

Seas 3 ft or less. 

.MON...S of 21N W of 95W, variable winds less than 5 kt in the

morning. Variable winds less than 5 kt in the afternoon.

Elsewhere, SE winds 10 kt in the morning. Seas 3 ft or less. 

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



$$



GMZ049-182100-

Central Bay of Campeche-

453 AM EDT Thu Sep 18 2025



.TODAY...E winds 10 kt. Seas 3 ft or less. Scattered showers and

isolated tstms. 

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

showers and isolated tstms. 

.FRI...E to SE winds 10 kt. Seas 3 ft or less. Scattered showers

and isolated tstms. 

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

showers and isolated tstms. 

.SAT...S of 20N, E to SE winds 10 kt in the morning, becoming

variable less than 5 kt. N of 20N, E winds 10 kt. Seas 3 ft or

less. 

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

.SUN...S of 20N, SE winds 10 kt in the morning, becoming variable

less than 5 kt. N of 20N, E winds 10 kt. Seas 3 ft or less. 

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

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

5 kt. Seas 3 ft or less. 

.MON NIGHT...E winds 10 kt. Seas 3 ft or less. 



$$



GMZ050-182100-

E Bay of Campeche including Campeche Bank-

453 AM EDT Thu Sep 18 2025



.TODAY...E to SE winds 10 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. 

.FRI...E to SE winds 10 kt. Seas 3 ft or less. Scattered showers

and isolated tstms. 

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

Scattered showers and isolated tstms. 

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

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

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

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

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

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



$$



Forecaster ERA
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