000 FZNT32 KNHC 180824 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 424 AM EDT Mon Sep 18 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...A weak trough just inland the Texas coast will be replaced by another weak trough on today that will moves off the Texas coast and over NW Gulf. The trough is expected to be accompanied by a wind shift along with a few showers and thunderstorms. Winds will be moderate or weaker with slight seas through Thu, pulsing to moderate to fresh offshore the W Yucatan in the evenings. Winds may freshen in the NE Gulf by the end of the week due to building high pressure north of the area with seas also building. Gulf of Mexico N of 26N W of 87W .OVERNIGHT...E winds less than 10 kt. Seas 2 ft or less. .TUE...E winds 10 to 15 kt. Seas 2 ft or less. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft. .WED...E winds 10 kt. Seas 3 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. Gulf of Mexico from 22N to 26N W of 87W .OVERNIGHT...E winds less than 10 kt. Seas 2 ft or less. .TUE...E winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .WED...SE winds less than 10 kt. Seas 2 ft or less. .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, building to 3 ft after midnight. .FRI...NE winds less than 10 kt. Seas 3 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. SW Gulf of Mexico S of 22N W of 87W .OVERNIGHT...NE winds less than 10 kt. Seas 2 ft or less. .TUE...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less. .WED...SE winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 2 to 3 ft. .SAT...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less. Gulf of Mexico E of 87W .OVERNIGHT...NE winds less than 10 kt. Seas 2 ft or less. .TUE...E winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less. .WED...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 2 to 3 ft. .THU...NE winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 4 ft.