000 FZNT32 KNHC 171505 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1105 AM EDT Thu Jun 17 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 broad area of low pressure over the SW Gulf of Mexico is producing widespread but disorganized cloudiness, showers, and thunderstorms. This system is expected to move northward, and a tropical or subtropical depression is likely to form over the west-central Gulf of Mexico tonight or early Friday. Regardless of development, heavy rainfall will continue to affect most of the basin through Fri night, and the N and NE basin offshores the remainder weekend. High pressure is forecast to build in across the basin in the wake of the low Sat night into early next week. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft, building to 6 to 9 ft after midnight. .FRI...SE winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...SE winds 15 to 25 kt. Seas 8 to 11 ft. .SAT...SW winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...S winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 4 to 5 ft. .MON...S winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Gulf of Mexico from 22N to 26N W of 87W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...S winds 15 to 25 kt. Seas 6 to 8 ft. .FRI NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...S winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. SW Gulf of Mexico S of 22N W of 87W .THIS AFTERNOON...W winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...Within 60 nm of coast of Veracruz, N winds 10 to 20 kt, becoming NW less than 10 kt after midnight. Elsewhere, SW winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SW winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...NW winds less than 10 kt, shifting to SE after midnight. Seas 3 ft in the evening, subsiding to 2 ft or less. .SAT...SE winds 10 to 15 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .SAT NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. .SUN...SE winds 10 to 15 kt. Seas 2 ft or less. .SUN NIGHT...SE winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...SE winds 10 to 20 kt. Seas 3 to 4 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. Gulf of Mexico E of 87W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...S winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...S winds less than 10 kt, shifting to SE after midnight. Seas 3 to 4 ft.