000 FZNT32 KNHC 252104 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 504 PM EDT Wed Aug 25 2021 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 surface trough will move into the eastern Gulf tonight into Thu morning, bringing fresh NE to E winds. Otherwise, high pressure pressure will dominate the basin through Fri, producing mainly gentle to moderate E to SE winds. Fresh winds will pulse west of the Yucatan Peninsula tonight and again Thu night. A broad area of low pressure is expected to form over the southwestern Caribbean Sea during the next day or so. Environmental conditions are forecast to be conducive for development, and a tropical depression or tropical storm is likely to form late this week or over the weekend. The system is expected to move northwestward over the northwestern Caribbean Sea and near or across the Yucatan Peninsula of Mexico Fri night, and into the Gulf of Mexico this weekend, where conditions are expected to be favorable for additional development. Mariners should closely monitor the progress of this system. While not explicitly in the forecast, this system has potential for significant strengthening in the Gulf of Mexico. Expect a large increase in winds and seas this weekend in association with this system. Gulf of Mexico N of 26N W of 87W .TONIGHT...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 10 to 15 kt. Seas 3 to 4 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...E winds 20 to 30 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 20 to 30 kt. Seas 8 to 11 ft. .MON...S winds 20 to 30 kt. Seas 8 to 11 ft. .MON NIGHT...S winds 20 to 30 kt. Seas 8 to 11 ft. Gulf of Mexico from 22N to 26N W of 87W .TONIGHT...E winds less than 10 kt. Seas 3 ft. .THU...E winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 20 to 30 kt. Seas 7 to 11 ft. .SUN...NE winds 20 to 30 kt. Seas 7 to 11 ft. .SUN NIGHT...S winds 20 to 30 kt. Seas 7 to 11 ft. .MON...S winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. SW Gulf of Mexico S of 22N W of 87W .TONIGHT...NE winds less than 10 kt within 60 nm of coast of Veracruz, and NE 10 to 15 kt elsewhere. Seas 3 to 4 ft. .THU...Within 60 nm of coast of Veracruz, N winds less than 10 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...Within 60 nm of coast of Veracruz, NE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Elsewhere, NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...Within 60 nm of coast of Veracruz, Variable winds less than 10 kt. Elsewhere, NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SAT...N winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...NW winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SUN...Variable winds less than 10 kt. Seas 3 ft. .SUN NIGHT...Variable winds less than 10 kt, becoming SW less than 10 kt after midnight. Seas 3 ft. .MON...S winds less than 10 kt. Seas 3 ft. .MON NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 3 ft. Gulf of Mexico E of 87W .TONIGHT...E 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 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SE winds 20 to 30 kt. Seas 7 to 11 ft. .SAT NIGHT...SE winds 20 to 30 kt. Seas 7 to 11 ft. .SUN...SE winds 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .MON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.