000
FZNT24 KNHC 181509
OFFNT4

Offshore Waters Forecast for the Gulf of America
NWS National Hurricane Center Miami, FL
1109 AM 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.

GMZ001-190315-
Synopsis for the Gulf of America
1109 AM 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.

$$

GMZ040-190315-
NW Gulf of America including Stetson Bank-
1109 AM EDT Wed Mar 18 2026

.TODAY...SE winds 10 kt. Seas 3 ft or less. 
.TONIGHT...E to SE winds 10 kt. Seas 3 ft or less. 
.THU...SE to S winds 10 kt. Seas 3 ft or less.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. 
.FRI...S winds 10 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...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. 

$$

GMZ041-190315-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
1109 AM EDT Wed Mar 18 2026

.TODAY...E to SE winds 10 kt. Seas 2 to 4 ft. 
.TONIGHT...E winds 10 kt. Seas 2 to 4 ft. 
.THU...E to SE winds 10 kt. Seas 3 ft or less. 
.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...W of 92W, S winds 10 kt. E of 92W, variable winds
less than 5 kt, becoming S 10 kt late. Seas 3 ft or
less. 
.SAT...S winds 10 kt. Seas 3 ft or less. 
.SAT NIGHT...S winds 10 kt. Seas 3 ft or less. 
.SUN...S winds 10 kt. Seas 3 ft or less. 
.SUN NIGHT...SE to S winds 10 kt. Seas 3 ft or less. 

$$

GMZ056-190315-
N Central Gulf of America Offshore Waters-
1109 AM EDT Wed Mar 18 2026

.TODAY...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.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 2 to 4 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. E of 89W, NE
winds 10 kt in the morning, becoming variable less than 5 kt.
Seas 3 ft or less. 
.SAT NIGHT...Variable winds less than 5 kt W of 89W, and S 10 kt
E of 89W. Seas 3 ft or less. 
.SUN...Variable winds less than 5 kt, becoming S 10 kt in the
afternoon. Seas 3 ft or less. 
.SUN NIGHT...SE to S winds 10 kt. Seas 3 ft or less. 

$$

GMZ057-190315-
NE Gulf of America N of 26N E of 87W-
1109 AM EDT Wed Mar 18 2026

.TODAY...NE winds 15 kt. Seas 3 to 5 ft. 
.TONIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. 
.THU...NE winds 15 to 20 kt. Seas 3 to 5 ft. 
.THU NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. 
.SAT...NE winds 10 kt in the morning, becoming variable less than
5 kt. Seas 2 to 4 ft. 
.SAT NIGHT...W of 85W, variable winds less than 5 kt, becoming SW
10 kt late. E of 85W, variable winds less than 5 kt.
Seas 3 ft or less. 
.SUN...Variable winds less than 5 kt. Seas 3 ft or less. 
.SUN NIGHT...S winds 10 kt W of 85W, and variable less than 5 kt
E of 85W. Seas 3 ft or less. 

$$

GMZ058-190315-
W Central Gulf of America from 22N to 26N W of 94W-
1109 AM EDT Wed Mar 18 2026

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

$$

GMZ045-190315-
W Central Gulf of America from 22N to 26N between 91W and 94W-
1109 AM EDT Wed Mar 18 2026

.TODAY...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. 
.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 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 10 kt. Seas 2 to 4 ft. 
.SAT...E to SE winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 2 to 4 ft. 
.SAT NIGHT...E winds 10 kt. Seas 3 ft or less. 
.SUN...SE winds 10 kt. Seas 3 ft or less. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. 

$$

GMZ046-190315-
Central Gulf of America from 22N to 26N between 87W and 91W-
1109 AM EDT Wed Mar 18 2026

.TODAY...NE winds 10 to 15 kt. Seas 6 to 9 ft in NE swell. 
.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...E winds 10 kt. Seas 2 to 4 ft. 
.SUN...E to SE winds 10 kt. Seas 2 to 4 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. 

$$

GMZ047-190315-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
1109 AM EDT Wed Mar 18 2026

.TODAY...N to NE winds 15 to 20 kt. Seas 6 to 9 ft in N to NE
swell. 
.TONIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft in N to NE
swell. 
.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...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 to E winds 10 kt. Seas 4 to 6 ft in NE swell. 
.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. 
.SUN...E winds 10 to 15 kt. Seas 2 to 4 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. 

$$

GMZ048-190315-
SW Gulf of America S of 22N W of 94W-
1109 AM EDT Wed Mar 18 2026

.TODAY...NE winds 10 kt. Seas 4 to 6 ft in N to NE swell. 
.TONIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...N to 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 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 2 to 4 ft. 
.SUN...E to SE winds 10 kt. Seas 3 ft or less. 
.SUN NIGHT...E winds 10 kt. Seas 3 ft or less. 

$$

GMZ049-190315-
Central Bay of Campeche-
1109 AM EDT Wed Mar 18 2026

.TODAY...NE winds 10 to 15 kt. Seas 5 to 7 ft in N to NE swell. 
.TONIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. 
.THU...N to 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 2 to 4 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 to E 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. 

$$

GMZ050-190315-
E Bay of Campeche including Campeche Bank-
1109 AM EDT Wed Mar 18 2026

.TODAY...NE winds 10 to 15 kt. Seas 6 to 8 ft in N to NE swell. 
.TONIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. 
.THU...N to NE winds 10 to 15 kt. Seas 3 to 5 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. 
.FRI NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. 
.SAT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE to E 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. 

$$

Forecaster GR