000 FZNT32 KNHC 211523 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1123 AM EDT Thu Sep 21 2023 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...High pressure will be in control of the weather pattern across the Gulf waters allowing for generally gentle to moderate east to southeast winds and slight seas, except pulsing to moderate to fresh offshore the western Yucatan Peninsula in the evenings. Developing low pressure east of Florida will tighten the pressure gradient over the NE Gulf bringing moderate to locally fresh NE winds across the NE Gulf tonight into Fri. A frontal trough associated with the aforementioned low pressure will move across the southeastern Gulf and the Straits of Florida tonight into Fri. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...Variable winds less than 10 kt. Seas 3 ft. .TONIGHT...E winds 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .FRI...E winds 10 kt. Seas 3 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds less than 10 kt. Seas 3 ft. .SUN NIGHT...E winds 10 kt. Seas 3 ft. .MON...SE winds 10 kt. Seas 3 ft. .MON NIGHT...E winds 10 kt. Seas 3 ft. Gulf of Mexico from 22N to 26N W of 87W .THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less. .TONIGHT...E winds less than 10 kt. Seas 2 ft or less. .FRI...E winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SAT...NE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. .SUN...E winds less than 10 kt. Seas 3 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 ft. .MON...SE winds less than 10 kt. Seas 3 ft. .MON NIGHT...E winds less than 10 kt. Seas 3 ft. SW Gulf of Mexico S of 22N W of 87W .THIS AFTERNOON...E winds less than 10 kt. Seas 2 ft or less. .TONIGHT...E 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 to 4 ft after midnight. .FRI...Within 60 nm of coast of Veracruz, E 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 in the morning, subsiding to 2 ft or less. .FRI NIGHT...E 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. .SAT...E winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .SUN...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less. .MON...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. Gulf of Mexico E of 87W .THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...NE winds less than 10 kt. Seas 2 ft or less. .FRI...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .SAT...NE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SUN...E winds less than 10 kt. Seas 3 ft. .SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less. .MON...SE winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...SE winds less than 10 kt. Seas 2 ft or less.