000 FZNT32 KNHC 200912 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 512 AM EDT Sat Oct 20 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 frontal trough will persist over the SW Gulf through late Mon. The next cold front will reach the northern Gulf waters Sat evening, stretching from South Florida to near 25N97W by Sun evening. Then, the front will lift N as a weak low pressure develops along the frontal boundary over the NW Gulf by Mon evening. Fresh to strong winds and building seas are expected behind the front. Gulf of Mexico N of 26N W of 87W .TODAY...E winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt, becoming NE 10 to 20 kt after midnight. Seas 3 to 5 ft. .SUN...NE winds 15 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .TUE...SE winds 15 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Gulf of Mexico from 22N to 26N W of 87W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .TUE NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .WED...S winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft. SW Gulf of Mexico S of 22N W of 87W .TODAY...Within 60 nm of coast of Veracruz, NW winds 10 to 20 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft within 60 nm of coast of Veracruz, and 3 to 4 ft elsewhere. .SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft within 60 nm of coast of Veracruz, and 3 to 4 ft elsewhere. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .WED...NE winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. Gulf of Mexico E of 87W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .SUN...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 3 ft.