000 FZNT32 KNHC 281858 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 258 PM EDT Thu Jun 28 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 weak high pressure ridge in the central Gulf will change little through Tue. A surface trough will emerge off the Yucatan Peninsula each night, enhancing nocturnal winds in the SW Gulf through Tue. Gulf of Mexico N of 26N W of 87W .TONIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .FRI...SW winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 to 4 ft. .FRI NIGHT AND SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT THROUGH TUE...SW winds 10 to 15 kt. Seas 3 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 2 ft or less. Gulf of Mexico from 22N to 26N W of 87W .TONIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT AND SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT THROUGH TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. SW Gulf of Mexico S of 22N W of 87W .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT AND SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT THROUGH TUE...E winds 10 to 20 kt. Seas 3 to 5 ft. Gulf of Mexico E of 87W .TONIGHT...NW winds less than 10 kt. Seas 2 ft or less. .FRI...N winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT AND SAT...SE winds less than 10 kt. Seas 2 ft or less. .SAT...S winds less than 10 kt. Seas 2 ft or less. .SUN THROUGH TUE...E winds less than 10 kt. Seas 2 ft or less.