000 FZNT32 KNHC 210253 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1053 PM 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 1015 mb low presure is over the NW Gulf near 27N96W. A stationary from extends from the low to SE Louisiana, then continues NE as a cold front. A trough also extends from the low across the western Gulf to near 19N94W. The cold front will push into the northern Gulf tonight, and sweep across the eastern and central Gulf waters on Sun, and become stationary from S Florida to 26N93W and warm front to a new 1017 mb low at 26N97W on Mon. A cold front will extend from the new low to near Tampico, Mexico. The present 1017 mb low over the NW Gulf will dissipate late tonight over the north-central Gulf. The new Low will lift north-eastward through Mon night, then east- northeastward across the north-central Gulf through Wed night and the NE Gulf Thu, with a front to trail from it to the SW Gulf, and another front from the low eastward across N-central Florida. High pressure will build in the wake of the low and front supporting fresh to strong NE to E winds and building seas. Gulf of Mexico N of 26N W of 87W .OVERNIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...SE winds 10 to 15 kt, shifting to S after midnight. Seas 3 to 4 ft. .THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. Gulf of Mexico from 22N to 26N W of 87W .OVERNIGHT...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 15 kt. Seas 5 to 7 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .WED...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .WED NIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 4 ft. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 3 ft. SW Gulf of Mexico S of 22N W of 87W .OVERNIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...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 3 to 5 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...SE winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. Gulf of Mexico E of 87W .OVERNIGHT...NE winds less than 10 kt. Seas 3 ft, 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 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .WED NIGHT...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .THU...SE winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...W winds less than 10 kt. Seas 2 ft or less.