000 FZNT32 KNHC 200853 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 453 AM EDT Sun Aug 20 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...The northern extent of a tropical wave is moving through the Straits of Florida currently will enter the south central Gulf later today, moving across the basin through early next week. Otherwise, a weak ridge will extend westward along 28N both ahead of and behind the tropical wave. The remnants of Tropical Depression Harvey, currently across the S central Caribbean, will move WNW through the NW Caribbean and Yucatan Peninsula Tue, then emerge into the Bay of Campeche Tue night into Wed. Gulf of Mexico N of 26N W of 87W .TODAY...Variable winds less than 10 kt, becoming E less than 10 kt in the afternoon. Seas 2 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .MON...E winds 10 to 15 kt. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. .TUE...E winds 10 kt. Seas 3 ft. .TUE NIGHT...E winds less than 10 kt. Seas 3 ft. .WED...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 ft. .WED NIGHT...E winds less than 10 kt. Seas 2 ft or less. .THU...E winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...E winds less than 10 kt. Seas 2 ft or less. Gulf of Mexico from 22N to 26N W of 87W .TODAY...E winds less than 10 kt. Seas 2 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .MON...E winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 ft. .THU...SE winds less than 10 kt. Seas 3 ft in the morning, subsiding to 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, building to 3 ft after midnight. SW Gulf of Mexico S of 22N W of 87W .TODAY...E winds less than 10 kt. Seas 2 ft or less. .TONIGHT...NE winds less than 10 kt within 60 nm of coast of Veracruz, and NE 10 to 15 kt elsewhere. Seas 2 ft or less. .MON...Within 60 nm of coast of Veracruz, Variable winds less than 10 kt, becoming NW less than 10 kt in the afternoon. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...NE winds less than 10 kt within 60 nm of coast of Veracruz, and NE 10 to 15 kt elsewhere. Seas 2 ft or less, building to 3 ft after midnight. .TUE...E winds 10 to 15 kt, shifting to NE in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Gulf of Mexico E of 87W .TODAY...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .WED...E winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .THU...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 2 ft or less.