000
FZNT32 KNHC 282109
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
509 PM EDT Mon Aug 28 2023

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 for the Gulf of Mexico

.SYNOPSIS...Tropical Storm Idalia is near 21.4N 85.1W at 5 PM
EDT, and is moving north at 7 kt. Maximum sustained winds are
60 kt with gusts to 75 kt, and the minimum central pressure is
987 mb. Idalia will strengthen to a hurricane near 22.7N 85.2W
Tue morning, move to 24.9N 85.0W Tue afternoon, 27.6N 84.4W Wed
morning, inland to 30.4N 82.9W Wed afternoon, and weaken to a
tropical storm near 32.7N 80.4W Thu morning. High pressure and
improving conditions will arrive in the wake of Idalia late in
the week. 

Gulf of Mexico N of 26N W of 87W

.TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. 
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to
20 kt. Seas 2 ft or less, building to 3 to 5 ft in the
afternoon. 
.TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 10 to
20 kt. Seas 6 to 9 ft. 
.WED...N winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...N winds less than 10 kt, shifting to SE after
midnight. Seas 5 to 7 ft. 
.THU...W winds less than 10 kt, shifting to N in the afternoon.
Seas 3 to 4 ft. 
.THU NIGHT...SE winds less than 10 kt. Seas 3 ft. 
.FRI...SE winds 10 to 15 kt. Seas 2 ft or less. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 2 ft or less, building
to 3 to 4 ft after midnight. 
.SAT...SE winds 10 to 20 kt. Seas 3 to 4 ft. 

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

.TONIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 10 to
20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED...NW winds 10 to 20 kt. Seas 3 to 5 ft. 
.WED NIGHT...NW winds 10 to 15 kt, shifting to SE after
midnight. Seas 3 to 5 ft. 
.THU...W winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...E winds less than 10 kt, shifting to SE after
midnight. Seas 3 to 4 ft. 
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 

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

.TONIGHT...Within 60 nm of coast of Veracruz, N winds 10 to
15 kt, shifting to NW after midnight. Elsewhere, N winds 10 to
20 kt. Seas 3 ft. 
.TUE...W winds less than 10 kt within 60 nm of coast of
Veracruz, and NW 10 to 20 kt elsewhere. Seas 3 ft in the
morning, subsiding to 2 ft or less. 
.TUE NIGHT...Within 60 nm of coast of Veracruz, NE winds less
than 10 kt, shifting to S after midnight. Elsewhere, NW winds
10 to 15 kt, shifting to W after midnight. Seas 2 ft or less. 
.WED...W winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...W winds less than 10 kt. Seas 2 ft or less. 
.THU...W winds less than 10 kt. Seas 2 ft or less. 
.THU NIGHT...Within 60 nm of coast of Veracruz, SE winds less
than 10 kt. Elsewhere, N winds less than 10 kt, shifting to SE
after midnight. Seas 2 ft or less. 
.FRI...Within 60 nm of coast of Veracruz, S winds less than
10 kt, shifting to E in the afternoon. Elsewhere, SE winds 10 to
20 kt. Seas 2 ft or less. 
.FRI NIGHT...E winds less than 10 kt within 60 nm of coast of
Veracruz, and E 10 to 20 kt elsewhere. Seas 2 ft or less. 
.SAT...Within 60 nm of coast of Veracruz, SE winds less than
10 kt, shifting to NE in the afternoon. Elsewhere, E winds 10 to
20 kt. Seas 2 ft or less. 

Gulf of Mexico E of 87W

...HURRICANE WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS. E winds 45 to 55 kt,
becoming SE 60 to 70 kt after midnight. Seas 4 to 6 ft, building
to 6 to 9 ft after midnight. 
.TUE...HURRICANE CONDITIONS EXPECTED. SE winds 60 to 75 kt.
Seas 7 to 10 ft, building to 9 to 14 ft in the afternoon. 
.TUE NIGHT...HURRICANE CONDITIONS EXPECTED. SW winds 75 to
90 kt. Seas 12 to 17 ft. 
.WED...TROPICAL STORM CONDITIONS EXPECTED. SW winds 80 to
90 kt, diminishing to 20 to 30 kt in the afternoon. Seas 11 to
16 ft, subsiding to 8 to 11 ft in the afternoon. 
.WED NIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. 
.THU...SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...S winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. 
.SAT...NE winds 10 to 15 kt. Seas 2 ft or less.