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Offshore Marine Forecast


000

FZNT24 KNHC 120729

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

329 AM EDT Thu Mar 12 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.



GMZ001-121930-

Synopsis for the Gulf of America

329 AM EDT Thu Mar 12 2026



.SYNOPSIS...A strong cold front is moving into the NW Gulf,

extending from SE Louisiana to near Brownsville, Texas early this

morning, with fresh to strong winds and building seas behind it,

gale-force winds in the coastal waters. The front will quickly

reach from the mid-Florida Panhandle to just SE of Veracruz,

Mexico this afternoon, then will stall and significantly weaken

over the SE Gulf tonight into early Fri, dissipating Fri night. 

Marine conditions will improve significantly early Fri through 

Sun as weak high pressure settles just N of the basin. Another 

cold front will move into the NW Gulf Sun night and reach the SE 

Gulf by Mon night. Strong to near gale-force winds will follow the

front along with rough seas, with possible gales in the NW Gulf, 

and offshore Tamaulipas and Veracruz, Mexico Mon and Mon night. 



$$



GMZ040-121930-

NW Gulf of America including Stetson Bank-

329 AM EDT Thu Mar 12 2026



.TODAY...N to NE winds 20 to 25 kt. Seas 6 to 9 ft in N to NE

swell. 

.TONIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft in NE swell. 

.FRI...Variable winds less than 5 kt. Seas 3 to 5 ft in NE to E

swell. 

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

10 kt late. Seas 2 to 4 ft. 

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

.SAT NIGHT...SE to S winds 15 to 20 kt. Seas 2 to 4 ft. 

.SUN...S winds 15 to 20 kt. Seas 3 to 5 ft. 

.SUN NIGHT...S of 27N, S winds 10 to 15 kt, shifting to N 15 to

20 kt late. N of 27N, S to SW winds 15 kt, becoming N

25 to 30 kt late. Seas 4 to 6 ft. 

.MON...N to NE winds 25 to 30 kt. Seas 7 to 11 ft in W to NW

swell. 

.MON NIGHT...NE winds 15 to 20 kt. Seas 7 to 11 ft in NE swell. 



$$



GMZ041-121930-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

329 AM EDT Thu Mar 12 2026



.TODAY...N winds 25 to 30 kt, shifting to N to NE 20 kt in the

afternoon. Seas 6 to 9 ft in NW to N swell. 

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

late. Seas 6 to 9 ft in NE swell. 

.FRI...E winds 10 kt in the morning, becoming variable less than

5 kt. Seas 4 to 6 ft in NE to E swell. 

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

late. 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. 

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

.SUN NIGHT...W of 92W, S to SW winds 15 kt, shifting to NW to N

20 to 25 kt late. E of 92W, S winds 15 kt, shifting to

W late. Seas 3 to 5 ft. 

.MON...N winds 25 to 30 kt. Seas 7 to 10 ft in NW swell. 

.MON NIGHT...N to NE winds 20 to 25 kt. Seas 7 to 11 ft in N

swell. 



$$



GMZ056-121930-

N Central Gulf of America Offshore Waters-

329 AM EDT Thu Mar 12 2026



.TODAY...W to NW winds 20 to 25 kt, shifting to N in the

afternoon. Seas 6 to 9 ft in NW swell. 

.TONIGHT...N to NE winds 20 kt, shifting to NE 10 to 15 kt late.

Seas 6 to 9 ft in N to NE swell. 

.FRI...NE to E winds 10 kt in the morning, becoming variable less

than 5 kt. Seas 5 to 7 ft in NE swell. 

.FRI NIGHT...Variable winds less than 5 kt, becoming E 10 kt

late. Seas 3 to 5 ft. 

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

.SAT NIGHT...W of 89W, variable winds less than 5 kt, becoming S

10 kt late. E of 89W, SE to S winds 10 kt. Seas 3 ft or less. 

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

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

.MON...W of 89W, N winds 20 to 25 kt. E of 89W, W to NW winds

10 to 15 kt, becoming NW to N 20 to 25 kt in the afternoon. Seas

5 to 7 ft. 

.MON NIGHT...N winds 20 to 25 kt. Seas 6 to 9 ft in NW to N

swell. 



$$



GMZ057-121930-

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

329 AM EDT Thu Mar 12 2026



.TODAY...W of 85W, SW winds 15 to 20 kt, shifting to NW to N

20 to 25 kt in the afternoon. E of 85W, S to SW winds 10 to

15 kt, shifting to W in the afternoon. Seas 4 to 6 ft. 

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

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

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

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

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

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

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

.MON...W of 85W, SW to W winds 10 to 15 kt, becoming NW 20 to

25 kt in the afternoon. E of 85W, SW winds 15 kt. Seas 4 to 6 ft.

.MON NIGHT...N winds 15 to 20 kt. Seas 6 to 8 ft in W to NW

swell. 



$$



GMZ058-121930-

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

329 AM EDT Thu Mar 12 2026



...GALE CONDITIONS POSSIBLE MON...



.TODAY...N winds 20 to 25 kt. Seas 5 to 7 ft. 

.TONIGHT...N winds 15 to 20 kt, shifting to N to NE 10 kt late.

Seas 6 to 9 ft in N to NE swell. 

.FRI...Variable winds less than 5 kt. Seas 5 to 7 ft in N to NE

swell. 

.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 15 to 20 kt. Seas 3 to 5 ft. 

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

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

.MON...N winds 25 to 40 kt. Seas 7 to 11 ft in E to SE swell. 

.MON NIGHT...N to NE winds 20 to 25 kt. Seas 8 to 12 ft in N to

NE swell. 



$$



GMZ045-121930-

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

329 AM EDT Thu Mar 12 2026



.TODAY...N winds 15 to 20 kt S of 24N, and N 20 to 25 kt N of

24N. Seas 5 to 7 ft. 

.TONIGHT...N winds 20 kt, shifting to N to NE 10 to 15 kt late.

Seas 6 to 9 ft in N swell. 

.FRI...N to NE winds 10 kt in the morning, becoming variable less

than 5 kt. Seas 6 to 8 ft in N to NE swell. 

.FRI NIGHT...S of 24N, N to NE winds 10 kt in the evening,

becoming variable less than 5 kt. N of 24N, variable winds less

than 5 kt, becoming SE 10 kt late. Seas 3 to 5 ft in NE

swell. 

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

afternoon. Seas 2 to 4 ft. 

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

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

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

.MON...S of 24N, NE winds 10 kt, becoming N to NE 20 to 25 kt in

the afternoon, Seas 3 ft or less, building to 5 to 7 ft in the

afternoon. N of 24N, N winds 25 to 30 kt. Seas 3 to 5 ft,

building to 7 to 11 ft in the afternoon. 

.MON NIGHT...N to NE winds 20 to 25 kt. Seas 7 to 11 ft in NW to

N swell. 



$$



GMZ046-121930-

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

329 AM EDT Thu Mar 12 2026



.TODAY...SW winds 10 to 15 kt, shifting to NW 15 to 20 kt in the

afternoon. Seas 2 to 4 ft, building to 5 to 7 ft in the

afternoon. 

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

.FRI...N to NE winds 10 to 15 kt. Seas 5 to 7 ft in NW to N

swell. 

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

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

.SAT...Variable winds less than 5 kt. Seas 2 to 4 ft. 

.SAT NIGHT...S of 24N, E to SE winds 10 kt. N of 24N, variable

winds less than 5 kt, becoming SE 10 kt late. Seas 3 ft

or less. 

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

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

.MON...S of 24N, SE to S winds 10 to 15 kt, shifting to NW in the

afternoon. N of 24N, SW winds 10 to 15 kt, becoming NW to N 20 to

25 kt in the afternoon. Seas 3 to 5 ft. 

.MON NIGHT...N to NE winds 20 to 25 kt. Seas 7 to 10 ft in NE to

E swell. 



$$



GMZ047-121930-

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

Florida-

329 AM EDT Thu Mar 12 2026



.TODAY...S winds 10 kt, shifting to SW to W in the afternoon.

Seas 2 to 4 ft. 

.TONIGHT...N winds 10 kt S of 24N, and N 15 to 20 kt N of 24N.

Seas 5 to 7 ft. 

.FRI...S of 24N, NE winds 10 kt in the morning, becoming variable

less than 5 kt. N of 24N, NE winds 10 kt. Seas 5 to 7 ft in NW

swell. 

.FRI NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in NW

swell. 

.SAT...Variable winds less than 5 kt. Seas 2 to 4 ft. 

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

late. Seas 3 ft or less. 

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

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

.MON...S to SW winds 10 to 15 kt. Seas 2 to 4 ft. 

.MON NIGHT...S of 24N, S winds 10 kt. Seas 2 to 4 ft. N of 24N,

NW to N winds 15 to 20 kt. Seas 5 to 7 ft. 



$$



GMZ048-121930-

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

329 AM EDT Thu Mar 12 2026



...GALE CONDITIONS POSSIBLE MON AND MON NIGHT...



.TODAY...N winds 20 to 25 kt. Seas 3 to 5 ft, building to 6 to

8 ft in the afternoon. Scattered showers. 

.TONIGHT...N winds 20 to 25 kt. Seas 6 to 9 ft in NW to N swell. 

.FRI...N winds 10 kt in the morning, becoming variable less than

5 kt. Seas 5 to 7 ft in N swell. 

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

.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. 

.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...S of 21N W of 95W, W winds 10 to 15 kt, becoming NW to N

30 to 45 kt in the afternoon. Elsewhere, NE to E winds 15 to

20 kt, becoming N 25 to 30 kt in the afternoon. Seas 2 to 4 ft,

building to 7 to 10 ft in NE swell in the afternoon. 

.MON NIGHT...S of 21N W of 95W, NW to N winds 30 to 40 kt, 

diminishing to 20 to 25 kt late. Elsewhere, N winds 20 to 25 kt. 

Seas 9 to 13 ft in NW swell. 



$$



GMZ049-121930-

Central Bay of Campeche-

329 AM EDT Thu Mar 12 2026



.TODAY...N to NE winds 15 to 20 kt. Seas 2 to 4 ft.

.TONIGHT...N winds 20 to 25 kt. Seas 5 to 7 ft. 

.FRI...N winds 10 kt. Seas 5 to 7 ft in NW to N swell. 

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

.SAT...Variable winds less than 5 kt, becoming E to SE 10 kt in

the afternoon. Seas 2 to 4 ft. 

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

.SUN...S of 20N, SE winds 10 to 15 kt in the morning, becoming

variable less than 5 kt. N of 20N, SE to S winds 10 to 15 kt.

Seas 3 ft or less. 

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

.MON...SE winds 10 to 15 kt, shifting to N in the afternoon.

Seas 3 ft or less. 

.MON NIGHT...N to NE winds 20 to 25 kt. Seas 5 to 7 ft, building

to 7 to 11 ft in NE swell late. 



$$



GMZ050-121930-

E Bay of Campeche including Campeche Bank-

329 AM EDT Thu Mar 12 2026



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

Seas 2 to 4 ft. 

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

.FRI...N winds 10 to 15 kt. Seas 5 to 7 ft in NW to N swell. 

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

swell. 

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

.SAT NIGHT...NE winds 10 to 15 kt, shifting to E to SE late.

Seas 3 ft or less. 

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

.SUN NIGHT...NE winds 10 kt, shifting to E to SE late.

Seas 3 ft or less. 

.MON...SE winds 10 to 15 kt, shifting to N in the afternoon.

Seas 3 ft or less. 

.MON NIGHT...N to NE winds 15 to 20 kt. W of 90W, seas 3 to 5 ft,

building to 6 to 8 ft late. E of 90W, seas 3 ft or

less, building to 3 to 5 ft late. 



$$



Forecaster Lewitsky
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