Offshore Forecast
Issued by NWS

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880
FZNT24 KNHC 250905
OFFNT4

Offshore Waters Forecast for the Gulf of Mexico
NWS National Hurricane Center Miami, FL
505 AM EDT Wed Sep 25 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.

GMZ001-252115-
Synopsis for the Gulf of Mexico
505 AM EDT Wed Sep 25 2024

.SYNOPSIS...Tropical Storm Helene is near 20.7N 86.0W at 5 AM
EDT, and is moving north-northwest at 8 kt. Maximum sustained
winds are 55 kt with gusts to 65 kt, and the minimum central
pressure is 985 mb. Helene will strengthen to a hurricane near
21.9N 86.5W this afternoon, then move to 24.1N 86.2W Thu
morning. Hurricane Helene will be near 27.4N 85.0W Thu
afternoon, 32.0N 84.2W Fri morning, then move inland and weaken
to a tropical depression near 35.9N 85.4W Fri afternoon. Tropical
Depression Helene will be well inland over the southeastern U.S.
Saturday morning.

$$

GMZ040-252115-
NW Gulf including Stetson Bank-
505 AM EDT Wed Sep 25 2024

.TODAY...NE winds 10 kt. Seas 3 ft or less.
.TONIGHT...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. Scattered showers and
isolated tstms.
.THU NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft in E to SE
swell.
.FRI...NW to N winds 10 kt. Seas 6 to 8 ft in E swell.
.FRI NIGHT...NW to N winds 10 kt, shifting to SW to W late. Seas
4 to 6 ft in E swell.
.SAT...W to NW winds 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...W to NW winds 10 kt, shifting to SW late.
Seas 3 ft or less.
.SUN...NW winds 10 kt. Seas 3 ft or less.

$$

GMZ041-252115-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
505 AM EDT Wed Sep 25 2024

.TODAY...N to NE winds 10 to 15 kt. Seas 3 ft or less.
.TONIGHT...N to NE winds 15 to 20 kt. Seas 3 to 5 ft. Scattered
showers and isolated tstms.
.THU...N winds 15 to 20 kt. Seas 6 to 9 ft in SE swell.
.THU NIGHT...N winds 15 to 20 kt. Seas 7 to 11 ft in E to SE
swell.
.FRI...NW to N winds 10 to 15 kt. Seas 6 to 9 ft in E swell.
.FRI NIGHT...W to NW winds 10 kt. Seas 4 to 6 ft in NE to E
swell.
.SAT...W winds 10 kt. Seas 2 to 4 ft.
.SAT NIGHT...W winds 10 kt. Seas 3 ft or less.
.SUN...NW winds 10 kt. Seas 3 ft or less.

$$

GMZ056-252115-
N Central Gulf Offshore Waters-
505 AM EDT Wed Sep 25 2024

.TODAY...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. Scattered
showers and isolated tstms.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 25 to
35 kt. Seas 6 to 8 ft, building to 8 to 12 ft in SE to S swell
late. Scattered showers and isolated tstms.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. N winds 25 to 35 kt.
Seas 10 to 16 ft in SE swell. Scattered showers and isolated
tstms.
.THU NIGHT...NW winds 25 to 30 kt. Seas 11 to 17 ft in E to SE
swell.
.FRI...W to NW winds 15 to 20 kt. Seas 7 to 10 ft in N to NE
swell.
.FRI NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...W winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 3 ft or less.
.SUN...W to NW winds 10 kt. Seas 3 ft or less.

$$

GMZ057-252115-
NE Gulf N of 26N E of 87W-
505 AM EDT Wed Sep 25 2024

...HURRICANE WARNING...

.TODAY...E to SE winds 20 to 25 kt. Seas 4 to 6 ft. Scattered
showers and isolated tstms.
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to
30 kt, becoming E to SE 35 to 40 kt late. Seas 9 to
13 ft in SE to S swell. Scattered showers and isolated tstms.
.THU...HURRICANE CONDITIONS EXPECTED. W of 85W, NE to E winds
50 to 60 kt, becoming NW to N 65 to 85 kt in the afternoon. E of
85W, E to SE winds 45 to 55 kt, becoming SE to S 80 to 100 kt in
the afternoon. Seas 14 to 22 ft in S swell, building to 19 to
29 ft in SE to S swell in the afternoon. Numerous showers and
isolated tstms. Vsby 1 NM or less.
.THU NIGHT...HURRICANE CONDITIONS EXPECTED. W of 85W, W to NW
winds 35 to 40 kt, becoming W 25 to 30 kt late. E of
85W, SW winds 55 to 65 kt, becoming SW to W 25 to 30 kt late.
Seas 18 to 27 ft in SE to S swell, subsiding to 11 to 17 ft in SW
swell late. Scattered showers and isolated tstms.
.FRI...SW to W winds 20 to 25 kt. Seas 7 to 11 ft in NW swell.
.FRI NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...SW winds 10 kt. Seas 3 ft or less.

$$

GMZ058-252115-
W Central Gulf from 22N to 26N W of 94W-
505 AM EDT Wed Sep 25 2024

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

$$

GMZ045-252115-
W Central Gulf from 22N to 26N between 91W and 94W-
505 AM EDT Wed Sep 25 2024

.TODAY...N to NE winds 10 to 15 kt. Seas 3 ft or less, building
to 3 to 5 ft in the afternoon.
.TONIGHT...N winds 15 to 20 kt. Seas 6 to 8 ft in E swell.
Scattered showers and isolated tstms.
.THU...NW to N winds 15 to 20 kt. Seas 7 to 10 ft in E swell.
Scattered showers and isolated tstms.
.THU NIGHT...NW to N winds 10 to 15 kt. Seas 6 to 9 ft in NE to E
swell. Scattered showers and isolated tstms.
.FRI...N winds 10 kt. Seas 6 to 8 ft in NE to E swell.
.FRI NIGHT...N to NE winds 10 kt. Seas 4 to 6 ft in NE swell.
.SAT...N to NE winds 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...NE winds 10 kt. Seas 3 ft or less.
.SUN...NE winds 10 kt. Seas 3 ft or less.

$$

GMZ046-252115-
Central Gulf from 22N to 26N between 87W and 91W-
505 AM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING...

.TODAY...TROPICAL STORM CONDITIONS. S of 24N, N to NE winds 35 to
40 kt. N of 24N, NE winds 25 to 30 kt. Seas 7 to 10 ft in E to SE
swell, building to 10 to 15 ft in E to SE swell in the afternoon.
Scattered showers and isolated tstms.
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. S of 24N, N winds
40 to 45 kt, becoming NW 30 to 35 kt late. N of 24N, N
to NE winds 30 to 40 kt. Seas 11 to 17 ft in E to SE swell.
Scattered showers and isolated tstms.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 25 to 35 kt.
Seas 10 to 16 ft in NE to E swell. Scattered showers and isolated
tstms.
.THU NIGHT...W to NW winds 15 to 20 kt. Seas 7 to 11 ft in NE
swell.
.FRI...W winds 10 kt. Seas 6 to 8 ft in N to NE swell.
.FRI NIGHT...NW to N winds 10 kt, shifting to E to SE late. Seas
4 to 6 ft in N swell.
.SAT...S to SW winds 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 kt. Seas 3 ft or less.
.SUN...SE winds 10 kt. Seas 3 ft or less.

$$

GMZ047-252115-
SE Gulf from 22N to 26N E of 87W including Straits of Florida-
505 AM EDT Wed Sep 25 2024

...HURRICANE WARNING...

.TODAY...TROPICAL STORM CONDITIONS. S of 24N, E winds 35 to
40 kt, becoming E to SE 55 to 65 kt in the afternoon. N of 24N, E
winds 30 to 35 kt. Seas 11 to 17 ft in SE swell. Scattered
showers and isolated tstms.
.TONIGHT...HURRICANE CONDITIONS EXPECTED. S of 24N, SE to S
winds 70 to 80 kt, shifting to S to SW 55 to 65 kt late. N of
24N, E to SE winds 35 to 45 kt, increasing to
60 to 80 kt late. Seas 14 to 22 ft in S swell. Numerous
showers and isolated tstms. Vsby 1 NM or less.
.THU...HURRICANE CONDITIONS EXPECTED. S of 24N, SW winds 35 to
40 kt, diminishing to 25 to 30 kt in the afternoon. N of 24N, S
to SW winds 75 to 95 kt, becoming SW to W 35 to 45 kt in the
afternoon. Seas 17 to 26 ft in S to SW swell. Scattered showers
and isolated tstms.
.THU NIGHT...SW to W winds 25 to 30 kt. Seas 12 to 18 ft in SW to
W swell, subsiding to 8 to 12 ft in W to NW swell late.
Scattered showers and isolated tstms.
.FRI...SW winds 15 to 20 kt. Seas 6 to 9 ft in NW to N swell.
.FRI NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SE to S winds 10 kt. Seas 2 to 4 ft.
.SUN...SE to S winds 10 kt. Seas 3 ft or less.

$$

GMZ048-252115-
SW Gulf S of 22N W of 94W-
505 AM EDT Wed Sep 25 2024

.TODAY...NW winds 10 kt. Seas 3 ft or less.
.TONIGHT...NW winds 10 to 15 kt. Seas 3 ft or less. Scattered
tstms.
.THU...NW winds 10 to 15 kt. Seas 3 to 5 ft. Scattered tstms.
.THU NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Scattered
tstms.
.FRI...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...NW to N winds 10 to 15 kt. Seas 2 to 4 ft.

$$

GMZ049-252115-
Central Bay of Campeche-
505 AM EDT Wed Sep 25 2024

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

$$

GMZ050-252115-
E Bay of Campeche including Campeche Bank-
505 AM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING...

.TODAY...TROPICAL STORM CONDITIONS EXPECTED. W of 90W, NW winds
15 to 20 kt. E of 90W, N winds 25 to 30 kt, becoming NW to N
35 to 40 kt in the afternoon. Seas 5 to 7 ft in NE swell.
Scattered showers and isolated tstms.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W of 90W, W to NW
winds 15 to 20 kt. E of 90W, NW winds 30 to 35 kt, becoming W
20 to 25 kt late. Seas 6 to 9 ft in N to NE swell.
Scattered tstms.
.THU...W winds 20 to 25 kt. Seas 6 to 8 ft. Scattered tstms.
.THU NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft. Scattered
showers and isolated tstms.
.FRI...SW to W winds 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...NW winds 10 kt, shifting to SE to S late.
Seas 2 to 4 ft.
.SAT...S to SW winds 10 kt. Seas 2 to 4 ft.
.SAT NIGHT...N to NE winds 10 kt, shifting to SE late.
Seas 3 ft or less.
.SUN...SE to S winds 10 kt, shifting to SW in the afternoon. Seas
3 ft or less.

$$

Forecaster Konarik