000 FZNT32 KNHC 182019 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 419 PM EDT Tue Jul 18 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...A thermal trough will develop over the Yucatan Peninsula each afternoon into each evening, move W across the SW gulf waters during the overnight hours, and dissipate by late each morning accompanied by fresh to locally strong winds. Otherwise, weak high pressure will persist across the northern gulf waters through Sun night. Gulf of Mexico N of 26N W of 87W .TONIGHT...SE winds less than 10 kt. Seas 2 ft or less. .WED...S winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .THU...Variable 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 in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .SAT...SE winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...S winds less than 10 kt. Seas 2 ft or less. .SUN...S winds 10 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 ft. Gulf of Mexico from 22N to 26N W of 87W .TONIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less, building to 3 ft after midnight. .WED...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 ft. .WED NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .THU...E winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. .FRI...E winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .SAT...SE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. SW Gulf of Mexico S of 22N W of 87W .TONIGHT...Within 60 nm of coast of Veracruz, E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Elsewhere, E winds 10 to 20 kt. Seas 3 to 5 ft. .WED...NE winds less than 10 kt Within 60 nm of coast of Veracruz, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt Within 60 nm of coast of Veracruz, and E 10 to 20 kt elsewhere. Seas 3 to 4 ft. .THU...Within 60 nm of coast of Veracruz, E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Elsewhere, E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Gulf of Mexico E of 87W .TONIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 2 ft or less. .WED...NE winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .THU...NE winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .SUN...SE winds 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight.