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 210151

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

951 PM EDT Mon Apr 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.



GMZ001-211400-

Synopsis for the Gulf of America

951 PM EDT Mon Apr 20 2026



.SYNOPSIS...A stationary front extends from near Naples, FL west-

southwestward to 22N94W. Fresh to locally strong N to NE winds 

and moderate to rough seas will prevail N of the front through 

Tue. Then on Tue, the western portion of this boundary will 

gradually dissipate over the central and western Gulf, while the 

eastern portion will resume moving southward and move across Cuba 

and the Yucatan Channel, before stalling along about 21N Wed and 

dissipating early Thu. Gentle to moderate southeasterly winds will

return to the Gulf on Thu. 



$$



GMZ040-211400-

NW Gulf of America including Stetson Bank-

951 PM EDT Mon Apr 20 2026



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

.TUE...SE winds 15 to 20 kt. Seas 5 to 7 ft. 

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

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

showers. 

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

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

.THU NIGHT...SE winds 15 kt. Seas 4 to 6 ft. 

.FRI...SE to S winds 10 to 15 kt. Seas 4 to 6 ft in E to SE

swell. 

.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. 



$$



GMZ041-211400-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

951 PM EDT Mon Apr 20 2026



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

swell. 

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

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

swell. 

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

tstms. 

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

swell. 

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

.THU NIGHT...SE winds 15 kt. Seas 4 to 6 ft. 

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

.FRI NIGHT...SE 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. 



$$



GMZ056-211400-

N Central Gulf of America Offshore Waters-

951 PM EDT Mon Apr 20 2026



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

swell. 

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

.TUE NIGHT...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 6 to 8 ft in E to SE

swell. Numerous showers and scattered tstms. 

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

swell. 

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

.THU NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 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 to 15 kt. Seas 3 ft or less. 



$$



GMZ057-211400-

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

951 PM EDT Mon Apr 20 2026



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

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

.TUE NIGHT...E to SE winds 15 to 20 kt W of 85W, and E 20 to

25 kt E of 85W. Seas 6 to 8 ft in E to SE swell. 

.WED...E to SE winds 15 to 20 kt. Seas 6 to 8 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 to 20 kt. Seas 5 to 7 ft. 

.THU NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 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 winds 10 kt in the late morning and early afternoon,

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

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



$$



GMZ058-211400-

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

951 PM EDT Mon Apr 20 2026



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

swell. 

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

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

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

.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...E to 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. 



$$



GMZ045-211400-

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

951 PM EDT Mon Apr 20 2026



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

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

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

swell. 

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

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

swell. 

.THU...E to SE winds 10 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. 



$$



GMZ046-211400-

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

951 PM EDT Mon Apr 20 2026



.OVERNIGHT...NE to E winds 15 to 20 kt. Seas 6 to 9 ft in N to NE

swell. 

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

.TUE NIGHT...E to SE 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 in E swell.

Scattered showers and isolated tstms.

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

swell. 

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

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



$$



GMZ047-211400-

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

Florida-

951 PM EDT Mon Apr 20 2026



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

25 kt N of 24N. Seas 6 to 8 ft in NW to N swell. 

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

.TUE NIGHT...E winds 20 to 25 kt. Seas 6 to 9 ft in E swell. 

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

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

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

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

.FRI...SE winds 10 kt in the late morning and early afternoon,

becoming variable less than 5 kt. Seas 3 to 5 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. 



$$



GMZ048-211400-

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

951 PM EDT Mon Apr 20 2026



.OVERNIGHT...NE winds 10 kt. Seas 4 to 6 ft in N swell. 

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

.TUE NIGHT...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 to 15 kt. Seas 3 to 5 ft. 

.THU...SE winds 10 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 3 to 5 ft. 

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

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

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



$$



GMZ049-211400-

Central Bay of Campeche-

951 PM EDT Mon Apr 20 2026



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

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

swell. 

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

.WED...S of 20N, E winds 10 to 15 kt, shifting to NW to N early

in the evening. N of 20N, E to SE winds 10 to 15 kt in the late

morning and early afternoon, becoming variable less than 5 kt.

Seas 3 to 5 ft. 

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

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

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

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

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



$$



GMZ050-211400-

E Bay of Campeche including Campeche Bank-

951 PM EDT Mon Apr 20 2026



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

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

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

.WED...W of 90W, SE winds 10 to 15 kt, shifting to N 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 4 to 6 ft. 

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

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

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

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

Seas 3 to 5 ft. 

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

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

Seas 2 to 4 ft. 

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



$$



Forecaster AL
​