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Offshore Marine Forecast


000

FZNT24 KNHC 181917

OFFNT4



Offshore Waters Forecast for the Gulf of America

NWS National Hurricane Center Miami, FL

317 PM EDT Wed Mar 18 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.



GMZ001-190730-

Synopsis for the Gulf of America

317 PM EDT Wed Mar 18 2026



.SYNOPSIS...The pressure gradient between a ridge across the Gulf

region and a frontal boundary over the Caribbean Sea will support

moderate to fresh N to NE winds and moderate to rough seas over 

the SE Gulf and the Straits of Florida to Fri. Moderate to fresh 

NE winds are expected across the eastern Bay of Campeche at night 

through Sat night. Elsewhere gentle to moderate winds and slight 

to moderate seas will prevail through Sun. 



$$



GMZ040-190730-

NW Gulf of America including Stetson Bank-

317 PM EDT Wed Mar 18 2026



.TONIGHT...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. 

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

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

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

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

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

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

.MON...S winds 10 kt in the morning, becoming variable less than

5 kt. Seas 2 to 4 ft. 

.MON NIGHT...Variable winds less than 5 kt, becoming S 10 kt

late. Seas 3 ft or less. 



$$



GMZ041-190730-

SW Louisiana Offshore Waters including Flower Garden Bank Marine

Sanctuary-

317 PM EDT Wed Mar 18 2026



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

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

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

late. Seas 3 ft or less. 

.FRI...S winds 10 kt W of 92W, and variable less than 5 kt E of

92W. Seas 3 ft or less. 

.FRI NIGHT...S to SW winds 10 kt. Seas 3 ft or less. 

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

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

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

.SUN NIGHT...S winds 10 kt. Seas 3 ft or less. 

.MON...S winds 10 kt in the morning, becoming variable less than

5 kt. Seas 3 ft or less. 

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



$$



GMZ056-190730-

N Central Gulf of America Offshore Waters-

317 PM EDT Wed Mar 18 2026



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

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

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

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

.FRI NIGHT...W of 89W, variable winds less than 5 kt in the

evening. Variable winds less than 5 kt late. E of 89W,

NE winds 10 kt in the evening. Seas 2 to 4 ft. 

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

10 kt in the afternoon. E of 89W, NW to N winds 10 kt, shifting

to SW in the afternoon. Seas 3 ft or less. 

.SAT NIGHT...SW to W winds 10 kt. Seas 3 ft or less. 

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

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

.MON...Variable winds less than 5 kt W of 89W, and SW 10 kt E of

89W. Seas 3 ft or less. 

.MON NIGHT...NW winds 10 to 15 kt. Seas 3 ft or less. 



$$



GMZ057-190730-

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

317 PM EDT Wed Mar 18 2026



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

.THU...NE winds 15 to 20 kt. Seas 3 to 5 ft. 

.THU NIGHT...N to NE winds 15 to 20 kt. Seas 3 to 5 ft. 

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

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

.SAT...W of 85W, W to NW winds 10 kt in the afternoon. Variable

winds less than 5 kt in the morning. E of 85W, variable less than

5 kt. Seas 3 ft or less. 

.SAT NIGHT...W of 85W, W winds 10 kt. E of 85W, variable winds

less than 5 kt, becoming W 10 kt late. Seas 3 ft or

less. 

.SUN...SW winds 10 kt W of 85W, and variable less than 5 kt E of

85W. Seas 3 ft or less. 

.SUN NIGHT...W of 85W, S to SW winds 10 kt. E of 85W, variable

winds less than 5 kt, becoming SW to W 10 kt late. Seas

3 ft or less. 

.MON...W of 85W, SW to W winds 10 kt. E of 85W, variable winds

less than 5 kt, becoming SW to W 10 kt in the afternoon. Seas

3 ft or less. 

.MON NIGHT...W to NW winds 10 to 15 kt. Seas 3 ft or less. 



$$



GMZ058-190730-

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

317 PM EDT Wed Mar 18 2026



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

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

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

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

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

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

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

.SUN...SE to S 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 kt. Seas 2 to 4 ft. 

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



$$



GMZ045-190730-

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

317 PM EDT Wed Mar 18 2026



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

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

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

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

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

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

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

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

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



$$



GMZ046-190730-

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

317 PM EDT Wed Mar 18 2026



.TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 

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

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

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

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

.SAT...NE to E winds 10 kt. Seas 3 to 5 ft. 

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

winds less than 5 kt, becoming E 10 kt late. Seas 2 to

4 ft. 

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

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

.MON...S of 24N, E winds 10 kt. N of 24N, E to SE winds 10 kt in

the morning, becoming variable less than 5 kt. Seas 2 to 4 ft. 

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



$$



GMZ047-190730-

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

Florida-

317 PM EDT Wed Mar 18 2026



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

.THU...N to NE winds 15 to 20 kt. Seas 6 to 8 ft. 

.THU NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft. 

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

.FRI NIGHT...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.SAT NIGHT...S of 24N, NE to E winds 10 to 15 kt. N of 24N, NE

winds 10 kt in the evening, becoming variable less than 5 kt.

Seas 2 to 4 ft. 

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

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

.MON...S of 24N, E winds 10 kt. N of 24N, E to SE winds 10 kt in

the morning, becoming variable less than 5 kt. Seas 3 ft or less.

.MON NIGHT...N to NE winds 10 kt. Seas 3 ft or less. 



$$



GMZ048-190730-

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

317 PM EDT Wed Mar 18 2026



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

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

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

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

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

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

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

.MON...E to SE winds 10 kt in the morning, becoming variable less

than 5 kt. Seas 3 ft or less. 

.MON NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. 



$$



GMZ049-190730-

Central Bay of Campeche-

317 PM EDT Wed Mar 18 2026



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

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

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

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

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

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

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

.SUN...S of 20N, E winds 10 kt in the morning, becoming variable

less than 5 kt. N of 20N, E to SE winds 10 to 15 kt. Seas 2 to

4 ft. 

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

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

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



$$



GMZ050-190730-

E Bay of Campeche including Campeche Bank-

317 PM EDT Wed Mar 18 2026



.TONIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. 

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

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

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

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

.SAT...NE to E winds 10 kt. Seas 3 to 5 ft. 

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

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

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

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

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



$$



Forecaster GR
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