000 FZNT32 KNHC 191401 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1001 AM EDT Thu Oct 19 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 extending from the Carolinas to the Texas coast will shift south through Sat ahead of a weak cold front expected to move into the northeast Gulf Fri night. The front will weaken as it moves slowly across the eastern Gulf into Mon, then stall and dissipate from southwest Florida to the north Texas coast by Sun night or early Mon. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...SE winds less than 10 kt, becoming variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...Variable winds less than 10 kt, becoming SW less than 10 kt after midnight. Seas 2 ft or less. .FRI...W winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less, building to 3 ft in the afternoon. .FRI NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...W winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...SW winds less than 10 kt. Seas 2 ft or less. .SUN...W winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. 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 2 ft or less, building to 3 to 4 ft after midnight. Gulf of Mexico from 22N to 26N W of 87W .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .FRI...Variable winds less than 10 kt, becoming NW less than 10 kt in the afternoon. Seas 3 ft. .FRI NIGHT...N winds less than 10 kt. Seas 3 ft. .SAT...SW winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .SUN...E winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .MON...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. SW Gulf of Mexico S of 22N W of 87W .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 ft. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .SAT...Variable 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 less than 10 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. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. Gulf of Mexico E of 87W .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 ft. .TONIGHT...N winds less than 10 kt. Seas 3 ft. .FRI...NW winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NW winds 10 to 15 kt, shifting to N in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...NW winds less than 10 kt. Seas 3 ft. .SUN...N winds 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .SUN NIGHT...N winds 10 kt. Seas 2 ft or less. .MON...NE winds 10 kt. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 to 4 ft after midnight.