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 211240

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

840 AM EDT Tue Apr 21 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.



GMZ001-220045-

Synopsis for the Gulf of America

840 AM EDT Tue Apr 21 2026



.SYNOPSIS...A weak cold front has just exited the basin into Cuba.

Fresh to locally strong winds and rough seas will gradually

diminish in the SE Gulf in the wake of the front into tonight. 

Gentle to moderate southeasterly winds will return to the Gulf on

Thu. 



$$



GMZ040-220045-

NW Gulf of America including Stetson Bank-

840 AM EDT Tue Apr 21 2026



.TODAY...SE winds 15 kt. Seas 4 to 6 ft. 

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

.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers. 

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

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

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

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

.FRI NIGHT...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. 



$$



GMZ041-220045-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

840 AM EDT Tue Apr 21 2026



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

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

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

showers. 

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

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

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

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

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

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

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



$$



GMZ056-220045-

N Central Gulf of America Offshore Waters-

840 AM EDT Tue Apr 21 2026



.TODAY...E winds 15 to 20 kt. Seas 6 to 8 ft in E swell.

.TONIGHT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft in E to SE

swell. 

.WED...E to SE winds 15 to 20 kt. Seas 5 to 7 ft in E to SE

swell. Scattered showers. 

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

swell. 

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

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

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

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

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

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



$$



GMZ057-220045-

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

840 AM EDT Tue Apr 21 2026



.TODAY...E winds 15 to 20 kt. Seas 6 to 8 ft in E swell.

.TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft in E to SE swell. 

.WED...E to SE winds 15 to 20 kt. Seas 5 to 7 ft in SE swell. 

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

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

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

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

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

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

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



$$



GMZ058-220045-

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

840 AM EDT Tue Apr 21 2026



.TODAY...SE winds 10 to 15 kt. Seas 4 to 6 ft. 

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

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

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

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

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

.FRI...SE winds 10 to 15 kt. Seas 3 to 5 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...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. 



$$



GMZ045-220045-

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

840 AM EDT Tue Apr 21 2026



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

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

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

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

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

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

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

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

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

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



$$



GMZ046-220045-

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

840 AM EDT Tue Apr 21 2026



.TODAY...E winds 15 to 20 kt. Seas 6 to 8 ft in NE swell. 

.TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft in NE to E swell. 

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

showers. 

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

swell. Scattered showers. 

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

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

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

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



$$



GMZ047-220045-

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

Florida-

840 AM EDT Tue Apr 21 2026



.TODAY...NE to E winds 20 to 25 kt. Seas 6 to 8 ft in NE swell. 

.TONIGHT...E winds 20 to 25 kt. Seas 6 to 9 ft in NE to E swell. 

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

showers. 

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

showers. 

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

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

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

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

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

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



$$



GMZ048-220045-

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

840 AM EDT Tue Apr 21 2026



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

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

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

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

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



$$



GMZ049-220045-

Central Bay of Campeche-

840 AM EDT Tue Apr 21 2026



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

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

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

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

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

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

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

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



$$



GMZ050-220045-

E Bay of Campeche including Campeche Bank-

840 AM EDT Tue Apr 21 2026



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

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

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

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

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

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

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

afternoon. Seas 2 to 4 ft. 

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

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

afternoon. Seas 2 to 4 ft. 

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



$$



Forecaster Konarik
​