000 FZNT32 KNHC 281530 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1130 AM 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 20.8N 85.2W at 11 AM EDT, and is moving north at 7 kt. Maximum sustained winds are 55 kt with gusts to 65 kt, and the minimum central pressure is 990 mb. Idalia will strengthen to a hurricane near 22.0N 85.2W this evening, move to 23.9N 85.1W Tue morning, 26.4N 84.6W Tue evening, 29.2N 83.5W Wed morning, move inland and weaken to a tropical storm near 31.9N 81.2W Wed evening, and 33.6N 78.0W Thu morning. Idalia will change little in intensity as it moves to near 34.6N 71.2W early Fri. 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 .THIS AFTERNOON...N winds 10 to 15 kt. Seas 2 ft or less. .TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .TUE...NE winds 10 to 20 kt. Seas 3 to 4 ft. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 10 to 20 kt. Seas 5 to 7 ft. .WED...N winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...N winds less than 10 kt, shifting to SE after midnight. Seas 4 to 6 ft. .THU...N winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .FRI...SE winds 10 kt. Seas 2 ft or less. Gulf of Mexico from 22N to 26N W of 87W .THIS AFTERNOON...N winds 10 to 20 kt. Seas 3 to 4 ft. .TONIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...NW winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 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 ft. .FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 2 ft or less. SW Gulf of Mexico S of 22N W of 87W .THIS AFTERNOON...NW winds 10 to 15 kt. Seas 2 ft or less. .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 2 ft or less. .TUE...W winds less than 10 kt within 60 nm of coast of Veracruz, and NW 10 to 20 kt elsewhere. Seas 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...N winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less. .FRI...E winds less than 10 kt. Seas 2 ft or less. Gulf of Mexico E of 87W ...HURRICANE WARNING... .THIS AFTERNOON...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to 30 kt. Seas 3 to 5 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. 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...TROPICAL STORM CONDITIONS EXPECTED. SE winds 60 to 75 kt. Seas 9 to 14 ft, building to 12 to 17 ft in the afternoon. .TUE NIGHT...HURRICANE CONDITIONS EXPECTED. SW winds 70 to 85 kt. Seas 14 to 19 ft. .WED...HURRICANE CONDITIONS POSSIBLE. SW winds 70 to 80 kt, diminishing to 15 to 25 kt in the afternoon. Seas 10 to 15 ft, subsiding to 6 to 9 ft in the afternoon. .WED NIGHT...SW winds 15 to 25 kt. Seas 5 to 7 ft. .THU...SW winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SE winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less.