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Offshore Marine Forecast


000

FZNT24 KNHC 210241

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

1041 PM EDT Wed May 20 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.



GMZ001-211445-

Synopsis for the Gulf of America

1041 PM EDT Wed May 20 2026



.SYNOPSIS...High pressure extending from the western Atlantic to

the northern Gulf will change little during the forecast period.

The pressure gradient between it and relatively lower pressures

over Texas and northern Mexico will generally maintain a gentle

to moderate east to southeast wind flow across the basin through

the weekend, with the exception of fresh to strong winds pulsing 

off Yucatan from the late afternoons and into the night time 

hours. A series of upper-level disturbances in a very moist and 

unstable environment is expected to keep unsettled weather 

conditions in the form of scattered to numerous showers and 

thunderstorms in the NW Gulf for the next few days. Mariners 

transiting through these waters are advised to be prepared for 

rapidly changing weather conditions with this activity. 



$$



GMZ040-211445-

NW Gulf of America including Stetson Bank-

1041 PM EDT Wed May 20 2026



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

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

showers and isolated tstms. 

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

showers and isolated tstms. 

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

showers and isolated tstms. 

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

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

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

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

.SUN NIGHT...SE winds 10 kt. Seas 3 to 5 ft. 

.MON...SE to S winds 10 kt in the late morning and early

afternoon, becoming variable less than 5 kt. Seas 3 to 5 ft. 

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



$$



GMZ041-211445-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

1041 PM EDT Wed May 20 2026



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

.THU...SE winds 10 kt. Seas 2 to 4 ft. Scattered showers and

isolated tstms. 

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

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

showers and isolated tstms. 

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

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

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

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

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

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

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



$$



GMZ056-211445-

N Central Gulf of America Offshore Waters-

1041 PM EDT Wed May 20 2026



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

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

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

Scattered showers and isolated tstms. 

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

showers and isolated tstms. 

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

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

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

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

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

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

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



$$



GMZ057-211445-

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

1041 PM EDT Wed May 20 2026



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

.THU...SE winds 10 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 2 to 4 ft. 

.FRI NIGHT...SE winds 10 kt. Seas 2 to 4 ft. 

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

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

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

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



$$



GMZ058-211445-

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

1041 PM EDT Wed May 20 2026



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

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

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

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

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

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

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

.SUN...SE winds 10 kt. Seas 3 to 5 ft. 

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

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

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



$$



GMZ045-211445-

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

1041 PM EDT Wed May 20 2026



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

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

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

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

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

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

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

.SUN...SE winds 15 to 20 kt. Seas 4 to 6 ft. 

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

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

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



$$



GMZ046-211445-

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

1041 PM EDT Wed May 20 2026



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

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

.THU NIGHT...E to SE winds 15 to 20 kt S of 24N, and SE 10 to

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

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

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

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

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

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

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

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

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



$$



GMZ047-211445-

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

Florida-

1041 PM EDT Wed May 20 2026



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

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

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

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

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

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

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

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

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

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

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



$$



GMZ048-211445-

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

1041 PM EDT Wed May 20 2026



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

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

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

Seas 3 to 5 ft. 

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

.FRI...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. 

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

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

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

.SUN...Variable winds less than 5 kt S of 21N W of 95W, and E to

SE 10 kt elsewhere. Seas 3 to 5 ft. 

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

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

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

Seas 2 to 4 ft. 

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



$$



GMZ049-211445-

Central Bay of Campeche-

1041 PM EDT Wed May 20 2026



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

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

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

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

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

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

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



$$



GMZ050-211445-

E Bay of Campeche including Campeche Bank-

1041 PM EDT Wed May 20 2026



.OVERNIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. 

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

the evening. Seas 2 to 4 ft. 

.THU NIGHT...NE to E winds 15 to 20 kt, shifting to SE 10 to

15 kt early in the morning. Seas 2 to 4 ft. 

.FRI...SE winds 10 to 15 kt, shifting to N to NE 15 to 20 kt

early in the evening. Seas 2 to 4 ft. 

.FRI NIGHT...NE to E winds 15 to 20 kt, shifting to SE 10 to

15 kt early in the morning. Seas 3 to 5 ft.

.SAT...W of 90W, SE winds 10 to 15 kt, shifting to NE early in

the evening. E of 90W, E winds 15 to 20 kt. Seas 3 to 5 ft. 

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

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

the evening. E of 90W, E winds 15 to 20 kt. Seas 3 to 5 ft. 

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

.MON...W of 90W, E to SE winds 10 to 15 kt, shifting to NE early

in the evening. E of 90W, E to SE winds 10 kt, shifting to NE to

E 15 to 20 kt early in the evening. Seas 2 to 4 ft. 

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



$$



Forecaster Christensen
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