000 FZNT32 KNHC 200301 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1001 PM EST Wed Dec 19 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 strong cold front preceded by lines of strong thunderstorms will move E across the central gulf waters overnight and through the eastern waters on Thu and Fri. Strong to near gale force southerly winds will develop over the eastern waters overnight ahead of the front. Strong to near gale force westerly winds currently developing W of the front will increase to gale force on Thu, with seas building to 21 ft across the east- central waters on Thu night and Fri. A post-frontal surface high will shift E across the central gulf waters on Sat, and move NE across the Florida Panhandle on Sun leaving a weak ridge from the Florida Big Bend to SE Texas on Mon. Gulf of Mexico N of 26N W of 87W ...GALE WARNING... .TONIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. .THU...W winds 25 to 35 kt. Seas 5 to 7 ft, building to 8 to 11 ft in the afternoon. .THU NIGHT...NW winds 25 to 35 kt. Seas 13 to 18 ft. .FRI...NW winds 25 to 35 kt. Seas 11 to 16 ft. .FRI NIGHT...NW winds 15 to 25 kt, shifting to W 10 to 15 kt after midnight. Seas 8 to 11 ft, subsiding to 6 to 8 ft after midnight. .SAT...SW winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...S winds 10 kt. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .SUN NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .MON...Variable winds less than 10 kt, becoming E less than 10 kt in the afternoon. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE WARNING... .TONIGHT...SW winds less than 10 kt, becoming W 10 to 20 kt after midnight. Seas 3 to 5 ft. .THU...NW winds 20 to 30 kt. Seas 5 to 7 ft, building to 8 to 11 ft in the afternoon. .THU NIGHT...NW winds 25 to 35 kt. Seas 12 to 17 ft. .FRI...NW winds 20 to 30 kt. Seas 11 to 16 ft. .FRI NIGHT...NW winds 10 to 20 kt, becoming W less than 10 kt after midnight. Seas 7 to 10 ft. .SAT...S winds less than 10 kt, shifting to SE in the afternoon. Seas 5 to 7 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .MON...E winds 10 to 15 kt. Seas 3 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. SW Gulf of Mexico S of 22N W of 87W .TONIGHT...Variable winds less than 10 kt, becoming W 10 to 15 kt after midnight. Seas 2 ft or less. .THU...NW winds 15 to 25 kt. Seas 3 ft, building to 5 to 7 ft in the afternoon. .THU NIGHT...N winds 15 to 25 kt within 60 nm of coast of Veracruz, and NW 15 to 25 kt elsewhere. Seas 8 to 11 ft. .FRI...Within 60 nm of coast of Veracruz, NW winds 10 to 15 kt, shifting to N in the afternoon. Elsewhere, NW winds 10 to 20 kt. Seas 7 to 10 ft within 60 nm of coast of Veracruz, and 8 to 13 ft elsewhere. .FRI NIGHT...E winds less than 10 kt. Seas 6 to 9 ft. .SAT...SE winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Gulf of Mexico E of 87W ...GALE WARNING... .TONIGHT...S winds 15 to 25 kt. Seas 5 to 7 ft. .THU...SW winds 20 to 30 kt. Seas 8 to 11 ft. .THU NIGHT...W winds 25 to 35 kt. Seas 10 to 15 ft, building to 13 to 18 ft after midnight. .FRI...W winds 25 to 35 kt. Seas 16 to 21 ft. .FRI NIGHT...NW winds 20 to 30 kt, diminishing to 10 to 20 kt after midnight. Seas 14 to 19 ft, subsiding to 10 to 15 ft after midnight. .SAT...NW winds 10 to 15 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft. .MON...NE winds 10 to 15 kt. Seas 3 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.