000 FZNT32 KNHC 300840 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 440 AM EDT Sun Jul 30 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...Weak ridging over the northern Gulf will shift S tonight ahead of a cold front moving into the region. The front stall along roughly 27N Sun, before transitioning to a trough and drifting north through mid week. The ridge will build mid to late week from S Florida through the Texas coast. Meanwhile, a trough will develop over the Yucatan peninsula each evening, drift W during the overnight hours, and dissipate over the SW Gulf each morning. Gulf of Mexico N of 26N W of 87W .TODAY...W winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .TONIGHT...NE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .MON...Variable winds less than 10 kt, becoming NE less than 10 kt in the afternoon. Seas 2 ft or less, building to 3 ft in the afternoon. .MON NIGHT...E winds less than 10 kt. Seas 3 ft. .TUE...S winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 2 ft or less. .WED...SW winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...S winds less than 10 kt. Seas 2 ft or less. .THU...S winds 10 kt. Seas 3 ft. .THU NIGHT...S winds 10 kt. Seas 3 ft. Gulf of Mexico from 22N to 26N W of 87W .TODAY...SW winds less than 10 kt. Seas 2 ft or less. .TONIGHT...N winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less. .MON...S winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...NE winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less. .TUE...S winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .WED...S winds less than 10 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .WED NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. SW Gulf of Mexico S of 22N W of 87W .TODAY...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...Within 60 nm of coast of Veracruz, E winds less than 10 kt. Elsewhere, NE winds less than 10 kt, shifting to E after midnight. Seas 2 ft or less. .MON...E winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...Within 60 nm of coast of Veracruz, E winds less than 10 kt. Elsewhere, NE winds less than 10 kt, shifting to E after midnight. Seas 2 ft or less. .TUE...E winds 10 to 15 kt. Seas 2 ft or less. .TUE NIGHT...NE winds less than 10 kt, shifting to E after midnight. Seas 2 ft or less. .WED...SE winds 10 to 15 kt. Seas 2 ft or less. .WED NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .THU...SE winds 10 to 15 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. Gulf of Mexico E of 87W .TODAY...SW winds 10 to 15 kt. Seas 3 ft. .TONIGHT...W winds 10 to 15 kt, shifting to SW after midnight. Seas 3 ft. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .TUE...S winds less than 10 kt. Seas 3 ft. .TUE NIGHT...S winds less than 10 kt. Seas 2 ft or less. .WED...S winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...SE 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.