688
FZNT32 KNHC 251521
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1121 AM EDT Wed Sep 25 2024

Marine Weather HF Voice Broadcast 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.

.SYNOPSIS...Hurricane Helene is near 21.6N 86.3W at 11 AM EDT,
and is moving north-northwest at 9 kt. Maximum sustained winds
are 70 kt with gusts to 85 kt, and the minimum central pressure
is 979 mb. Helene will move to 23.0N 86.4W this evening, 25.7N
85.7W Thu morning, 29.7N 84.6W Thu evening, move inland and
weaken to a tropical storm near 34.3N 85.0W Fri morning, and
weaken to a tropical depression near 36.6N 86.9W Fri evening.
Marine conditions will gradually improve across the Gulf waters
beginning on Fri or Fri night.

Gulf of Mexico N of 26N W of 87W

...TROPICAL STORM WARNING...

.THIS AFTERNOON...NE winds 10 to 20 kt. Seas 2 ft or less,
building to 3 ft in the afternoon.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 20 to
30 kt. Seas 4 to 6 ft.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. N winds 30 to 40 kt,
diminishing to 20 to 30 kt in the afternoon. Seas 7 to 10 ft,
building to 9 to 14 ft in the afternoon.
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 20 to
30 kt. Seas 12 to 17 ft.
.FRI...NW winds 15 to 25 kt. Seas 9 to 14 ft, subsiding to 8 to
11 ft in the afternoon.
.FRI NIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT...W winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft in the evening,
subsiding to 2 ft or less.
.SUN...W winds 10 to 15 kt, shifting to NW in the afternoon.
Seas 2 ft or less.

Gulf of Mexico from 22N to 26N W of 87W

...TROPICAL STORM WARNING...

.THIS AFTERNOON...TROPICAL STORM CONDITIONS. NE winds 30 to
40 kt. Seas 5 to 7 ft.
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. N winds 35 to
45 kt. Seas 7 to 10 ft.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 30 to
40 kt, diminishing to 20 to 30 kt in the afternoon. Seas 8 to
13 ft.
.THU NIGHT...NW winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI...NW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 7 to 10 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft.
.SAT...N winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...NE winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.

SW Gulf of Mexico S of 22N W of 87W

...TROPICAL STORM WARNING...

.THIS AFTERNOON...TROPICAL STORM CONDITIONS POSSIBLE. NW winds
less than 10 kt within 60 nm of coast of Veracruz, and NW 30 to
40 kt elsewhere. Seas 2 ft or less within 60 nm of coast of
Veracruz, and 3 to 4 ft elsewhere.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of
coast of Veracruz, NW winds less than 10 kt. Elsewhere, NW winds
30 to 40 kt, diminishing to 20 to 30 kt after midnight. Seas
2 ft or less within 60 nm of coast of Veracruz, and 3 to 5 ft
elsewhere.
.THU...NW winds 10 to 15 kt within 60 nm of coast of Veracruz,
and NW 15 to 25 kt elsewhere. Seas 2 ft or less within 60 nm of
coast of Veracruz, and 4 to 6 ft elsewhere.
.THU NIGHT...Within 60 nm of coast of Veracruz, NW winds 10 to
15 kt. Elsewhere, NW winds 10 to 15 kt, shifting to W after
midnight. Seas 4 to 6 ft.
.FRI...W winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...Within 60 nm of coast of Veracruz, NW winds 10 to
15 kt. Elsewhere, NW winds 10 to 15 kt, shifting to N after
midnight. Seas 4 to 6 ft.
.SAT...Within 60 nm of coast of Veracruz, NW winds 10 to 15 kt.
Elsewhere, SW winds less than 10 kt, shifting to W in the
afternoon. Seas 4 to 6 ft.
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...NW winds 10 to 15 kt. Seas 3 to 4 ft.

Gulf of Mexico E of 87W

...HURRICANE WARNING...

.THIS AFTERNOON...TROPICAL STORM CONDITIONS. E winds 45 to
55 kt, increasing to 60 to 70 kt in the afternoon. Seas 8 to
13 ft.
.TONIGHT...HURRICANE CONDITIONS EXPECTED. E winds 70 to 80 kt,
becoming SE 80 to 90 kt after midnight. Seas 12 to 17 ft,
building to 15 to 20 ft after midnight.
.THU...HURRICANE CONDITIONS EXPECTED. S winds 80 to 100 kt.
Seas 18 to 28 ft.
.THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. W winds 75 to
95 kt, diminishing to 25 to 35 kt after midnight. Seas 16 to
26 ft, subsiding to 12 to 17 ft after midnight.
.FRI...SW winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.