370 FZNT32 KNHC 230305 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1105 PM EDT Wed Aug 22 2018 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 develop along the western Yucatan Peninsula during the late afternoons, then drift westward across the southwest gulf waters during the overnight hours accompanied by a fresh east to southeast wind shift with the trough dissipating along 96W during the late mornings. A surface high near 27N93W will meander over the northwest gulf waters through late Thu while a weak trough over the northeastern gulf waters stalls. Remnants of the trough will drift west and dissipate on Fri. Gentle to locally moderate anticyclonic flow forecast across the entire gulf waters beginning Fri night and persisting through the upcoming weekend. Gulf of Mexico N of 26N W of 87W .OVERNIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .THU...Variable winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...E winds less than 10 kt. Seas 2 ft or less. .FRI...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 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...E winds 10 kt. Seas 2 ft or less. .SUN...SE winds 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...SE winds 10 kt. Seas 3 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 ft. Gulf of Mexico from 22N to 26N W of 87W .OVERNIGHT...E 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...E winds less than 10 kt. Seas 2 ft or less. .FRI...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...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SUN...SE 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 3 ft. .MON NIGHT...E 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 .OVERNIGHT...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. .THU...NE winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...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...NE winds less than 10 kt, shifting to E after midnight. Seas 2 ft or less. .SAT...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 2 ft or less. .SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .SUN...E winds 10 to 15 kt. Seas 2 ft or less. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. Gulf of Mexico E of 87W .OVERNIGHT...N winds less than 10 kt. Seas 2 ft or less. .THU...Variable winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .FRI...Variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less. .SAT...E winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less. .SUN...E winds 10 kt. Seas 2 ft or less. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft. .MON...E winds 10 to 15 kt. Seas 3 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft.