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Offshore Marine Forecast


000

FZNT24 KNHC 190320

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

1020 PM EST Thu Dec 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.



GMZ001-191530-

Synopsis for the Gulf of America

1020 PM EST Thu Dec 18 2025



.SYNOPSIS...Winds across the basin are veering to the S and SW 

ahead of a cold front entering the NW Gulf tonight. The front 

will reach from the Florida Big Bend to NE Mexico by Fri morning,

from SW Florida to NE Mexico Fri evening, then begin to lift 

northward and dissipate through Sat. Then, a ridge will dominate 

the Gulf waters this upcoming weekend into early next week. 



$$



GMZ040-191530-

NW Gulf of America including Stetson Bank-

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...N to NE winds 20 to 25 kt. Seas 4 to 6 ft. 

.FRI...NE to E winds 10 to 15 kt. Seas 4 to 6 ft in E swell. 

.FRI NIGHT...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. 

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

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

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

.MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. 

.TUE...E to SE winds 10 kt. Seas 2 to 4 ft. 

.TUE NIGHT...E to SE winds 10 kt. Seas 2 to 4 ft. 



$$



GMZ041-191530-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...W to NW winds 20 to 25 kt, shifting to N to NE early

in the morning. Seas 4 to 6 ft. 

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

.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 

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

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

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

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

.MON...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.

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

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

.TUE NIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. 



$$



GMZ056-191530-

N Central Gulf of America Offshore Waters-

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...W winds 15 to 20 kt, shifting to NW early in the

morning. Seas 4 to 6 ft. 

.FRI...N to NE winds 15 to 20 kt. Seas 4 to 6 ft. 

.FRI NIGHT...E winds 10 kt. Seas 3 to 5 ft. 

.SAT...SE winds 10 kt. Seas 2 to 4 ft. 

.SAT NIGHT...SE to S winds 10 kt, shifting to NE to E early in

the morning. Seas 3 ft or less. 

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

.SUN NIGHT...E winds 15 kt. Seas 2 to 4 ft. 

.MON...E winds 15 kt. Seas 4 to 6 ft. 

.MON NIGHT...E winds 15 kt. Seas 4 to 6 ft. 

.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. 

.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft in E to SE

swell. 



$$



GMZ057-191530-

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

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...W winds 15 to 20 kt. Seas 4 to 6 ft. 

.FRI...N winds 15 to 20 kt. Seas 4 to 6 ft. 

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

.SAT...E winds 10 kt in the late morning and early afternoon,

becoming variable less than 5 kt. Seas 2 to 4 ft. 

.SAT NIGHT...Variable winds less than 5 kt, becoming NE 10 kt

early in the morning. Seas 3 ft or less. 

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

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

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

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

.TUE...E winds 15 to 20 kt. Seas 4 to 6 ft. 

.TUE NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. 



$$



GMZ058-191530-

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

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...SE to S winds 10 kt, shifting to N 15 to 20 kt early

in the morning. Seas 3 to 5 ft. 

.FRI...NE winds 15 to 20 kt. Seas 4 to 6 ft. 

.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 

.SAT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. 

.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. 

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

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

.MON...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.

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

.TUE...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. 

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



$$



GMZ045-191530-

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

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...S winds 10 kt, shifting to N early in the morning.

Seas 3 to 5 ft. 

.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft. 

.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft.

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

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

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

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

.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. 

.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 



$$



GMZ046-191530-

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

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...NW to N winds 10 kt. Seas 2 to 4 ft. 

.FRI...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. 

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

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

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

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

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

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

.MON NIGHT...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. 

.TUE...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. 

.TUE NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 8 ft in E

swell. 



$$



GMZ047-191530-

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

Florida-

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...SW winds 10 kt, shifting to NW early in the morning.

Seas 3 to 5 ft. 

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

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

.SAT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. 

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

.SUN...NE winds 15 to 20 kt. Seas 2 to 4 ft. 

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

.MON...NE to E winds 15 to 20 kt. Seas 5 to 7 ft.

.MON NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 8 ft in E

swell. 

.TUE...NE to E winds 15 to 20 kt. Seas 6 to 9 ft in E swell. 

.TUE NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 9 ft in E

swell. 



$$



GMZ048-191530-

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

1020 PM EST Thu Dec 18 2025



.OVERNIGHT...E to SE winds 10 kt, shifting to N to NE early in

the morning. Seas 3 ft or less. Scattered showers. 

.FRI...N winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers. 

.FRI NIGHT...NE winds 10 kt. Seas 2 to 4 ft. Scattered showers. 

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

E 10 kt early in the evening. Elsewhere, E to SE winds 10 kt.

Seas 2 to 4 ft. 

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

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

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

.MON...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.

.MON NIGHT...NE to E winds 10 kt. Seas 2 to 4 ft.

.TUE...NE winds 10 to 15 kt. Seas 2 to 4 ft. 

.TUE NIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. 



$$



GMZ049-191530-

Central Bay of Campeche-

1020 PM EST Thu Dec 18 2025



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

Scattered showers. 

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

showers. 

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

showers. 

.SAT...E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers. 

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

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

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

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

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

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

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



$$



GMZ050-191530-

E Bay of Campeche including Campeche Bank-

1020 PM EST Thu Dec 18 2025



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

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

showers. 

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

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

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

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

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

.MON...NE winds 15 to 20 kt. Seas 3 to 5 ft. 

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

.TUE...NE winds 15 to 20 kt. Seas 4 to 6 ft. 

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



$$



Forecaster Ramos
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