000 FZNT32 KNHC 241428 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1028 AM EDT Tue Oct 24 2017 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 cold front extends from Tampa Florida to the southwest Gulf of Mexico near 18N94W will reach the far SE Gulf early on Wednesday, and move E of the area Wednesday afternoon. High pressure building in behind the front will usher in fresh to strong northerly winds across the area from through Wednesday morning, diminishing through Thursday afternoon as high pressure shifts to the NE Gulf. The high pressure will weaken Friday as another cold front moves into the NW Gulf Friday night. The front will then reach from the NE Gulf to near 24N86W to NE Yucatan Peninsula by midday Saturday. High pressure will bring another round of strong northerly flow across much of the basin, with northerly winds expected to reach gale force in the far SW Gulf. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...N winds 15 to 20 kt. Seas 4 to 6 ft. .TONIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft. .WED...N winds 15 to 25 kt. Seas 6 to 9 ft. .WED NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .THU...Variable winds less than 10 kt, becoming SE less than 10 kt in the afternoon. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .FRI...S winds less than 10 kt. Seas 3 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming N 10 to 15 kt after midnight. Seas 3 to 5 ft. .SAT...N winds 15 to 25 kt. Seas 5 to 7 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft. Gulf of Mexico from 22N to 26N W of 87W .THIS AFTERNOON...N winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .WED...N winds 15 to 25 kt. Seas 7 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI...E winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SAT...N winds 10 to 15 kt, increasing to 15 to 25 kt in the afternoon. Seas 5 to 7 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE WARNING... ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...N winds 25 to 30 kt increasing to 30 to 35 kt. Seas 7 to 10 ft building to 8 to 12 ft. Scattered showers. .TONIGHT...N winds 25 to 35 kt. Seas 7 to 10 ft in N swell. .WED...N winds 20 to 30 kt. Seas 8 to 11 ft in N swell. .WED NIGHT...N winds 15 to 20 kt. Seas 7 to 10 ft in N swell. .THU...N to NE winds 5 to 10 kt. Seas 5 to 7 ft in N to NE swell. .THU NIGHT...E to SE winds 5 to 10 kt. Seas 3 to 5 ft. .FRI...E to SE winds 5 to 10 kt. Seas 3 to 4 ft. .FRI NIGHT...N to NE winds 5 to 10 kt. Seas 3 ft. .SAT...NW to N winds 15 to 20 kt, increasing to 25 to 30 kt in the afternoon. Seas 6 to 8 ft. .SAT NIGHT...NW to N winds 20 to 30 kt. Seas 7 to 10 ft. Gulf of Mexico E of 87W .THIS AFTERNOON...N winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .WED...N winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SAT...E winds less than 10 kt, shifting to N in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft.