You have returned to the top of the page and may restart browsing.
Skip Main Navigation
You have skipped the global top navigation and may now begin browsing the page.
  1. Home
  2. Departments
  3. Alabama Power-USA Coastal Weather Research Center
  4. Dr. Bill's Marine Weather
  5. Offshore Marine Forecast

Offshore Marine Forecast


000

FZNT24 KNHC 150805

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

405 AM EDT Tue Sep 15 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.



GMZ001-152015-

Synopsis for the Gulf of America

405 AM EDT Tue Sep 15 2026



.SYNOPSIS...A strong high pressure over the eastern United States

will build southward behind a weakening cold front that will

spread across the eastern Gulf waters. The tighter pressure

gradient will support fresh to locally strong NE-E winds and 

rough seas starting in the NE Gulf tonight and spreading over the

northern Gulf waters through Thu night. Elsewhere, a diurnal 

trough will move westward offshore the Yucatan Peninsula each 

evening through Thu night, bringing nightly pulses of fresh to 

locally strong NE winds. Conditions will improve across the basin

Fri, allowing for moderate or weaker winds and slight to moderate

seas during the weekend.



$$



GMZ040-152015-

NW Gulf of America including Stetson Bank-

405 AM EDT Tue Sep 15 2026



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

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

.WED...NE to E winds 10 kt. Seas 4 to 6 ft in E to SE swell. 

.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 

.THU...E winds 10 to 15 kt. Seas 6 to 8 ft in E swell. 

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

swell. 

.FRI...NE to E winds 10 to 15 kt. Seas 6 to 9 ft in E swell. 

.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft in E swell. 

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

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



$$



GMZ041-152015-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

405 AM EDT Tue Sep 15 2026



.TODAY...Variable winds less than 5 kt, becoming NE to E 10 kt in

the afternoon. Seas 3 ft or less. 

.TONIGHT...E winds 10 kt. Seas 3 to 5 ft. 

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

.WED NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. Scattered

showers and isolated tstms. 

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

.THU NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft in NE to E

swell. 

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

.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft in E swell. 

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

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



$$



GMZ056-152015-

N Central Gulf of America Offshore Waters-

405 AM EDT Tue Sep 15 2026



.TODAY...Variable winds less than 5 kt, becoming NE 10 kt in the

afternoon. Seas 3 ft or less. 

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

.WED...E winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and

isolated tstms. 

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

swell. 

.THU...NE to E winds 20 kt. Seas 7 to 10 ft in NE to E swell. 

.THU NIGHT...NE to E winds 15 to 20 kt. Seas 7 to 10 ft in NE to

E swell. 

.FRI...NE to E winds 10 to 15 kt. Seas 7 to 10 ft in E swell. 

.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft in E swell. 

.SAT...E to SE winds 10 kt. Seas 4 to 6 ft in NE to E swell. 

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



$$



GMZ057-152015-

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

405 AM EDT Tue Sep 15 2026



.TODAY...Variable winds less than 5 kt, becoming NE to E 10 kt in

the afternoon. Seas 3 ft or less. 

.TONIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers

and isolated tstms. 

.WED...NE to E winds 20 to 25 kt. Seas 6 to 8 ft. Scattered 

showers and isolated tstms. 

.WED NIGHT...NE to E winds 20 to 25 kt. Seas 7 to 10 ft in NE to

E swell. 

.THU...NE to E winds 15 to 20 kt. Seas 7 to 10 ft in NE to E

swell. 

.THU NIGHT...NE to E winds 15 to 20 kt. Seas 7 to 10 ft in NE to

E swell. 

.FRI...E winds 10 to 15 kt. Seas 6 to 9 ft in NE to E swell. 

.FRI NIGHT...E to SE winds 10 to 15 kt. Seas 6 to 8 ft in NE to E

swell. 

.SAT...SE winds 10 kt. Seas 5 to 7 ft in E swell, subsiding to

2 to 4 ft in the afternoon. 

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



$$



GMZ058-152015-

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

405 AM EDT Tue Sep 15 2026



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

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

.WED...NE to E winds 10 kt. Seas 4 to 6 ft in E to SE swell. 

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

swell. Scattered showers and isolated tstms. 

.THU...NE to E winds 10 kt. Seas 5 to 7 ft in E to SE swell. 

.THU NIGHT...NE to E winds 10 to 15 kt. Seas 6 to 8 ft in NE to E

swell. 

.FRI...NE to E winds 10 kt. Seas 6 to 9 ft in NE swell. 

.FRI NIGHT...E winds 10 kt. Seas 6 to 8 ft in NE to E swell. 

.SAT...Variable winds less than 5 kt. Seas 4 to 6 ft in NE to E

swell. 

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



$$



GMZ045-152015-

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

405 AM EDT Tue Sep 15 2026



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

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

showers and isolated tstms. 

.WED...NE to E winds 10 kt. Seas 4 to 6 ft in E to SE swell.

Scattered showers and isolated tstms. 

.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft in E to SE

swell. Scattered showers and isolated tstms. 

.THU...E winds 10 to 15 kt. Seas 6 to 9 ft in E swell. 

.THU NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 8 ft S of 24N,

and 7 to 10 ft N of 24N. 

.FRI...NE to E winds 10 kt. Seas 7 to 10 ft in NE swell. 

.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft in NE to E

swell. 

.SAT...Variable winds less than 5 kt. Seas 4 to 6 ft in NE to E

swell. 

.SAT NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. 



$$



GMZ046-152015-

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

405 AM EDT Tue Sep 15 2026



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

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Scattered showers

and isolated tstms. 

.WED...E winds 10 kt. Seas 5 to 7 ft in SE swell. Scattered

showers and isolated tstms. 

.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft in E swell. 

.THU...E winds 10 to 15 kt. Seas 6 to 9 ft in NE to E swell. 

.THU NIGHT...NE to E winds 15 to 20 kt. Seas 7 to 10 ft in NE

swell. 

.FRI...Variable winds less than 5 kt S of 24N, and E 10 to 15 kt

N of 24N. Seas 7 to 10 ft in NE swell. 

.FRI NIGHT...E to SE winds 10 kt. Seas 6 to 9 ft in NE swell. 

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

than 5 kt. Seas 5 to 7 ft in NE swell, subsiding to 2 to 4 ft in

the afternoon. 

.SAT NIGHT...Variable winds less than 5 kt, becoming SE to S

10 kt late. Seas 3 ft or less. 



$$



GMZ047-152015-

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

Florida-

405 AM EDT Tue Sep 15 2026



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

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

.WED...E winds 10 to 15 kt. Seas 5 to 7 ft. Scattered showers and

isolated tstms. 

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

swell. Scattered showers and isolated tstms. 

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

Seas 6 to 9 ft in N to NE swell. 

.THU NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft in N to NE

swell. 

.FRI...E to SE winds 10 kt. Seas 6 to 8 ft in N to NE swell. 

.FRI NIGHT...E to SE winds 10 kt. Seas 6 to 8 ft in N to NE

swell. 

.SAT...Variable winds less than 5 kt. Seas 3 to 5 ft in N to NE

swell. 

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

late. Seas 3 ft or less. 



$$



GMZ048-152015-

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

405 AM EDT Tue Sep 15 2026



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

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

.WED...NE winds 10 kt. Seas 4 to 6 ft in E swell. Scattered

showers and isolated tstms. 

.WED NIGHT...N to NE winds 10 to 15 kt. Seas 4 to 6 ft in E

swell. Scattered showers and isolated tstms. 

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

.THU NIGHT...N to NE winds 10 to 15 kt. Seas 4 to 6 ft in NE to E

swell. 

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

.FRI NIGHT...N to NE winds 10 kt in the evening, becoming

variable less than 5 kt. Seas 4 to 6 ft in NE swell. 

.SAT...NW winds 10 kt S of 21N W of 95W, and variable less than

5 kt elsewhere. Seas 3 to 5 ft in NE swell. 

.SAT NIGHT...NE to E winds 10 kt in the evening, becoming

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



$$



GMZ049-152015-

Central Bay of Campeche-

405 AM EDT Tue Sep 15 2026



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

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

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

.WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. Scattered

showers and isolated tstms. 

.THU...E winds 10 to 15 kt. Seas 5 to 7 ft in NE to E swell. 

.THU NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.

.FRI...S of 20N, variable winds less than 5 kt, becoming NW to N

10 kt in the afternoon. N of 20N, E winds 10 kt in the morning,

becoming variable less than 5 kt. Seas 5 to 7 ft in NE swell. 

.FRI NIGHT...N winds 10 kt, shifting to NE to E late.

Seas 5 to 7 ft in N to NE swell. 

.SAT...S of 20N, NW winds 10 kt in the afternoon. Variable winds

less than 5 kt in the morning. N of 20N, variable less than 5 kt.

Seas 4 to 6 ft in NE swell, subsiding to 3 ft or less in NE swell

in the afternoon. 

.SAT NIGHT...S of 20N, N winds 10 kt, shifting to E late. N of

20N, variable winds less than 5 kt, becoming E

10 kt late. Seas 3 ft or less. 



$$



GMZ050-152015-

E Bay of Campeche including Campeche Bank-

405 AM EDT Tue Sep 15 2026



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

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

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

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

.THU...NE to E winds 10 to 15 kt. Seas 5 to 7 ft in NE swell. 

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

late. Seas 4 to 6 ft. 

.FRI...W of 90W, SE winds 10 kt, shifting to SW to W in the

afternoon. E of 90W, variable winds less than 5 kt. Seas 4 to

6 ft in N to NE swell. 

.FRI NIGHT...N to NE winds 10 kt, shifting to E to SE late. Seas

4 to 6 ft in N to NE swell. 

.SAT...SE to S winds 10 kt, shifting to W to NW in the afternoon.

Seas 3 to 5 ft, subsiding to 3 ft or less in the afternoon. 

.SAT NIGHT...N to NE winds 10 kt, shifting to E to SE late. Seas

3 ft or less. 



$$



Forecaster Delgado
​