000 FZNT32 KNHC 102105 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 505 PM EDT Sun Sep 10 2017 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...Major Hurricane Irma is moving onshore into SW Florida near 26.2N 81.8W, 940 mb at 5 PM EDT moving N at 12 kt. Maximum sustained winds 95 kt gusts 115 kt. Irma will continue N reaching 28.0N 82.5W tonight, then weakening to a tropical storm as it reaches 30.7N 83.9W Mon morning, then will move on to 33.1N 86.0W Mon night before weakening to a depression near 34.5N 88.3W by Tue afternoon. Irma will gradually dissipate through mid week as it moves farther north. A weak pressure pattern will set up across the Gulf in the wake of Irma through the remainder of the week. Gulf of Mexico N of 26N W of 87W .TONIGHT...NE winds 20 to 30 kt. Seas 7 to 10 ft. .MON...N winds 20 to 30 kt. Seas 7 to 10 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NW winds 10 to 15 kt, shifting to W after midnight. Seas 3 to 4 ft in the evening, subsiding to 2 ft or less. .WED...SW winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...SW winds 10 to 15 kt. Seas 2 ft or less. .THU...SW winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...S winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less. .FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 2 ft or less. Gulf of Mexico from 22N to 26N W of 87W .TONIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .MON...N winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...NW winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...W winds less than 10 kt. Seas 3 to 5 ft. .WED...SW winds less than 10 kt. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .WED NIGHT...SW winds less than 10 kt, shifting to S after midnight. Seas 2 ft or less. .THU...S winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less. .FRI...SE winds 10 to 15 kt. Seas 2 ft or less. SW Gulf of Mexico S of 22N W of 87W .TONIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. .MON...N winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...Within 60 nm of coast of Veracruz, NW winds 10 to 15 kt. Elsewhere, NW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft. .WED...Variable winds less than 10 kt, becoming SW less than 10 kt in the afternoon. Seas 3 ft. .WED NIGHT...E winds less than 10 kt. Seas 2 ft or less. .THU...SE winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...E winds less than 10 kt. Seas 2 ft or less. .FRI...SE winds less than 10 kt within 60 nm of coast of Veracruz, and E 10 to 15 kt elsewhere. Seas 2 ft or less. Gulf of Mexico E of 87W ...HURRICANE WARNING... .TONIGHT...TROPICAL STORM CONDITIONS. NW winds 45 to 55 kt. Seas 15 to 20 ft. .MON...TROPICAL STORM CONDITIONS EXPECTED. NW winds 45 to 55 kt, diminishing to 35 to 45 kt in the afternoon. Seas 14 to 19 ft, subsiding to 11 to 16 ft in the afternoon. .MON NIGHT...NW winds 20 to 30 kt. Seas 8 to 11 ft, subsiding to 6 to 8 ft after midnight. .TUE...W winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...SW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 4 ft. .WED...SW winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .WED NIGHT...S winds less than 10 kt. Seas 2 ft or less. .THU...SW winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .FRI...SE winds less than 10 kt. Seas 2 ft or less.