187
FZNT24 KNHC 241509
OFFNT4

Offshore Waters Forecast for the Gulf of Mexico
NWS National Hurricane Center Miami, FL
1109 AM EDT Tue Sep 24 2024

Offshore Waters Forecast for the Gulf of Mexico

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.

GMZ001-250315-
Synopsis for the Gulf of Mexico
1109 AM EDT Tue Sep 24 2024

.SYNOPSIS...Tropical Storm Helene is near 19.5N 84.3W at 11 AM EDT,
and is moving northwest at 10 kt. Maximum sustained winds are 40
kt with gusts to 50 kt, and the minimum central pressure is 1000
mb. Helene will move to 20.3N 85.2W this evening, strengthen to a
hurricane near 21.5N 86.3W Wed morning, 23.2N 86.3W Wed evening,
25.9N 85.4W Thu morning, 29.7N 84.3W Thu evening, and weaken to a
tropical storm near 33.9N 83.9W Fri morning. Helene will weaken as
a post-tropical cyclone near 39.7N 86.8W early Sat. Helene is
expected to become a large and powerful hurricane.

$$

GMZ040-250315-
NW Gulf including Stetson Bank-
1109 AM EDT Tue Sep 24 2024

.TODAY...E to SE winds 10 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.TONIGHT...E winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.WED...NE winds 10 kt. Seas 3 ft or less.
.WED NIGHT...N to NE winds 10 to 15 kt. Seas 3 ft or less.
Scattered showers and isolated tstms.
.THU...N winds 15 to 20 kt. Seas 3 to 5 ft.
.THU NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft in E to SE
swell.
.FRI...NW winds 10 kt. Seas 4 to 6 ft in E swell.
.FRI NIGHT...W winds 10 kt, shifting to S to SW late.
Seas 3 to 5 ft.
.SAT...W winds 10 kt. Seas 3 ft or less.

$$

GMZ041-250315-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
1109 AM EDT Tue Sep 24 2024

.TODAY...NE to E winds 10 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.WED...NE winds 10 to 15 kt. Seas 3 ft or less.
.WED NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered
showers and isolated tstms.
.THU...N winds 15 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...NW to N winds 15 to 20 kt. Seas 6 to 8 ft in E to SE
swell.
.FRI...NW winds 10 to 15 kt. Seas 5 to 7 ft in E swell.
.FRI NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...W winds 10 to 15 kt. Seas 3 ft or less.

$$

GMZ056-250315-
N Central Gulf Offshore Waters-
1109 AM EDT Tue Sep 24 2024

...TROPICAL STORM WARNING...

.TODAY...NE to E winds 10 kt. Seas 3 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.WED...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. Scattered
showers and isolated tstms.
.WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to
20 kt W of 89W, and NE to E 25 to 30 kt E of 89W. Seas 7 to 10 ft
in SE swell. Scattered showers and isolated tstms.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. N winds 20 to 25 kt W
of 89W, and N 30 to 35 kt E of 89W. Seas 8 to 12 ft in SE swell.
.THU NIGHT...NW winds 15 to 20 kt W of 89W, and W to NW 25 to
30 kt E of 89W. Seas 9 to 13 ft in E swell.
.FRI...W to NW winds 15 to 20 kt. Seas 7 to 10 ft in NE to E
swell, subsiding to 4 to 6 ft in the afternoon.
.FRI NIGHT...W winds 10 kt. Seas 3 to 5 ft.
.SAT...W winds 10 kt. Seas 3 ft or less.

$$

GMZ057-250315-
NE Gulf N of 26N E of 87W-
1109 AM EDT Tue Sep 24 2024

...HURRICANE WARNING...

.TODAY...E winds 10 to 15 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.TONIGHT...E to SE winds 15 to 20 kt. Seas 2 to 4 ft. Scattered
showers and isolated tstms.
.WED...E to SE winds 20 to 25 kt. Seas 4 to 6 ft. Scattered
showers and isolated tstms.
.WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to
40 kt. Seas 6 to 9 ft, building to 9 to 13 ft in SE to S swell
late. Scattered showers and isolated tstms.
.THU...HURRICANE CONDITIONS POSSIBLE. W of 85W, NE winds 65 to
85 kt, shifting to NW to N 60 to 70 kt in the afternoon. E of
85W, E to SE winds 55 to 75 kt, becoming S 70 to 90 kt in the
afternoon. Seas 12 to 18 ft in SE to S swell, building to 17 to
26 ft in SE to S swell in the afternoon. Scattered showers and
isolated tstms.
.THU NIGHT...HURRICANE CONDITIONS POSSIBLE.
.FRI...SW to W winds 15 to 20 kt. Seas 7 to 11 ft in NW swell.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...SW to W winds 10 kt. Seas 2 to 4 ft.

$$

GMZ058-250315-
W Central Gulf from 22N to 26N W of 94W-
1109 AM EDT Tue Sep 24 2024

.TODAY...E winds 10 kt. Seas 3 ft or less. Scattered showers and
isolated tstms.
.TONIGHT...NE to E winds 10 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.WED...N to NE winds 10 kt. Seas 3 ft or less.
.WED NIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered
showers and isolated tstms.
.THU...NW to N winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...N winds 10 kt. Seas 4 to 6 ft in E swell.
.FRI NIGHT...NE to E winds 10 kt. Seas 3 to 5 ft.
.SAT...NE winds 10 kt. Seas 2 to 4 ft.

$$

GMZ045-250315-
W Central Gulf from 22N to 26N between 91W and 94W-
1109 AM EDT Tue Sep 24 2024

.TODAY...NE to E winds 10 kt. Seas 3 ft or less.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.WED...N to NE winds 10 to 15 kt. Seas 3 ft or less, building to
3 to 5 ft in the afternoon.
.WED NIGHT...N winds 15 to 20 kt. Seas 5 to 7 ft. Scattered
showers and isolated tstms.
.THU...NW to N winds 15 to 20 kt. Seas 6 to 8 ft in E swell.
.THU NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in NE to E
swell.
.FRI...N winds 10 kt. Seas 4 to 6 ft in NE to E swell.
.FRI NIGHT...NE winds 10 kt. Seas 3 to 5 ft.
.SAT...NE winds 10 kt. Seas 2 to 4 ft.

$$

GMZ046-250315-
Central Gulf from 22N to 26N between 87W and 91W-
1109 AM EDT Tue Sep 24 2024

...TROPICAL STORM WARNING...

.TODAY...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE to E winds
20 to 25 kt. Seas 4 to 6 ft. Scattered showers and isolated
tstms.
.WED...TROPICAL STORM CONDITIONS EXPECTED. S of 24N, N to NE
winds 35 to 45 kt. N of 24N, NE to E winds 20 to 25 kt, becoming
NE 30 to 35 kt in the afternoon. Seas 8 to 12 ft in E to SE
swell. Scattered showers and isolated tstms.
.WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. N winds 35 to
45 kt. Seas 9 to 14 ft. Scattered tstms.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. S of 24N, W to NW
winds 20 to 25 kt. N of 24N, NW to N winds 30 to 35 kt, becoming
NW 20 to 25 kt in the afternoon. Seas 8 to 12 ft.
.THU NIGHT...W to NW winds 15 to 20 kt. Seas 6 to 9 ft in NE
swell.
.FRI...W to NW winds 10 kt. Seas 5 to 7 ft in NE swell.
.FRI NIGHT...Variable winds less than 5 kt, becoming SE 10 kt
late. Seas 3 to 5 ft.
.SAT...SE to S winds 10 kt. Seas 2 to 4 ft.

$$

GMZ047-250315-
SE Gulf from 22N to 26N E of 87W including Straits of Florida-
1109 AM EDT Tue Sep 24 2024

...HURRICANE WARNING...

.TODAY...E winds 20 to 25 kt S of 24N, and E 10 to 15 kt N of
24N. Seas 3 to 5 ft. Scattered showers and isolated tstms.
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. S of 24N, E winds
25 to 30 kt, increasing to 35 to 40 kt late. N of 24N,
E winds 15 to 20 kt, becoming E to SE 25 to 30 kt late.
Seas 6 to 8 ft. Scattered showers and isolated tstms.
.WED...TROPICAL STORM CONDITIONS EXPECTED. S of 24N, E winds
45 to 50 kt, becoming E to SE 60 to 70 kt in the afternoon. N of
24N, E winds 25 to 30 kt, increasing to 35 to 40 kt in the
afternoon. Seas 9 to 14 ft in SE swell. Scattered showers and
isolated tstms.
.WED NIGHT...HURRICANE CONDITIONS EXPECTED. S of 24N, SE to S
winds 65 to 75 kt, shifting to SW 50 to 60 kt late. N
of 24N, E to SE winds 40 to 50 kt, increasing to 65 to 85 kt
late. Seas 11 to 17 ft in S swell. Numerous showers and
isolated tstms. Vsby 1 NM or less.
.THU...HURRICANE CONDITIONS POSSIBLE. S of 24N, SW winds 35 to
40 kt, diminishing to 25 to 30 kt in the afternoon. N of 24N, SW
winds 75 to 95 kt, becoming SW to W 35 to 40 kt in the afternoon.
Seas 15 to 23 ft in N swell. Scattered showers and isolated
tstms.
.THU NIGHT...SW to W winds 25 to 30 kt, becoming SW 15 to 20 kt
late. Seas 11 to 17 ft in N swell, subsiding to 7 to
11 ft in N swell late.
.FRI...SW winds 10 to 15 kt. Seas 6 to 9 ft in NW to N swell.
.FRI NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...S winds 10 to 15 kt. Seas 2 to 4 ft.

$$

GMZ048-250315-
SW Gulf S of 22N W of 94W-
1109 AM EDT Tue Sep 24 2024

.TODAY...NE winds 10 kt late in the morning, becoming variable
less than 5 kt. Seas 3 ft or less. Scattered showers and isolated
tstms.
.TONIGHT...N to NE winds 10 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.WED...NW winds 10 kt. Seas 3 ft or less.
.WED NIGHT...NW to N winds 10 kt. Seas 3 ft or less. Scattered
tstms.
.THU...NW winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers
and isolated tstms.
.THU NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...NW to N winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI NIGHT...NW to N winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT...NW to N winds 10 to 15 kt. Seas 2 to 4 ft.

$$

GMZ049-250315-
Central Bay of Campeche-
1109 AM EDT Tue Sep 24 2024

.TODAY...E winds 10 kt late in the morning, becoming variable
less than 5 kt. Seas 3 ft or less. Scattered showers and isolated
tstms.
.TONIGHT...N winds 10 kt. Seas 3 ft or less. Scattered showers
and isolated tstms.
.WED...NW winds 10 to 15 kt. Seas 3 ft or less.
.WED NIGHT...W to NW winds 10 to 15 kt. Seas 2 to 4 ft. Scattered
showers and isolated tstms.
.THU...W to NW winds 10 to 15 kt. Seas 3 to 5 ft. Scattered
showers and isolated tstms.
.THU NIGHT...W to NW winds 10 kt. Seas 3 to 5 ft.
.FRI...W winds 10 kt. Seas 2 to 4 ft.
.FRI NIGHT...NW winds 10 kt, shifting to S late. Seas
2 to 4 ft.
.SAT...SW to W winds 10 kt. Seas 2 to 4 ft.

$$

GMZ050-250315-
E Bay of Campeche including Campeche Bank-
1109 AM EDT Tue Sep 24 2024

...TROPICAL STORM WARNING...

.TODAY...NE winds 10 to 15 kt. Seas 3 ft or less. Scattered
showers and isolated tstms.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N to NE winds
10 to 15 kt W of 90W, and N to NE 20 to 25 kt E of 90W. Seas 3 to
5 ft. Scattered showers and isolated tstms.
.WED...TROPICAL STORM CONDITIONS EXPECTED. NW winds 15 to 20 kt
W of 90W, and NW to N 35 to 45 kt E of 90W. Seas 5 to 7 ft in NE
swell. Scattered showers and isolated tstms.
.WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 90W, W to
NW winds 15 to 20 kt. E of 90W, NW winds 30 to 35 kt, becoming W
to NW 20 to 25 kt late. Seas 6 to 8 ft in N to NE
swell. Scattered showers and isolated tstms.
.THU...W winds 15 to 20 kt. Seas 5 to 7 ft. Scattered showers and
isolated tstms.
.THU NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...SW to W winds 10 kt. Seas 2 to 4 ft.
.FRI NIGHT...N winds 10 kt, shifting to SE to S late.
Seas 3 ft or less.
.SAT...S to SW winds 10 kt. Seas 3 ft or less.

$$

Forecaster GR