000 FZNT32 KNHC 191411 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 911 AM 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 with widespread thunderstorm activity will race across the Gulf waters tonight through early Fri. Strong to near gale force S winds will develop over the SE waters tonight ahead of the front. Strong to near gale force W to NW winds behind the front will reach gale force Thu night with seas building to near 20 ft. Gale conditions are expected across the N Gulf through Fri morning. A post-frontal surface high pressure will set up over the central gulf on Sat morning, and move to the NE waters on Sun. Gulf of Mexico N of 26N W of 87W ...GALE WARNING... .TODAY...S winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...W winds 10 to 20 kt. 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 13 to 18 ft. .FRI...NW winds 25 to 35 kt. Seas 11 to 16 ft. .FRI NIGHT...W winds 10 to 20 kt. Seas 7 to 10 ft, subsiding to 5 to 7 ft after midnight. .SAT...SW winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 2 ft or less. Gulf of Mexico from 22N to 26N W of 87W ...GALE WARNING... .TODAY...S winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...SW winds less than 10 kt, shifting to W after midnight. Seas 3 to 5 ft. .THU...NW winds 20 to 30 kt. Seas 4 to 6 ft, building to 7 to 10 ft in the afternoon. .THU NIGHT...NW winds 25 to 35 kt. Seas 11 to 16 ft. .FRI...NW winds 25 to 35 kt. Seas 11 to 16 ft. .FRI NIGHT...NW winds 10 to 20 kt, diminishing to less than 10 kt after midnight. Seas 7 to 10 ft. .SAT...S winds 10 to 15 kt. 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. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. SW Gulf of Mexico S of 22N W of 87W .TODAY...SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .TONIGHT...NE winds less than 10 kt, shifting to W after midnight. Seas 2 ft or less. .THU...NW winds 10 to 20 kt within 60 nm of coast of Veracruz, and NW 15 to 25 kt elsewhere. Seas 3 ft, building to 4 to 6 ft in the afternoon. .THU NIGHT...N winds 10 to 20 kt within 60 nm of coast of Veracruz, and NW 15 to 25 kt elsewhere. Seas 6 to 8 ft within 60 nm of coast of Veracruz, and 7 to 10 ft elsewhere. .FRI...NW winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 7 to 10 ft. .SAT...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Gulf of Mexico E of 87W ...GALE WARNING... .TODAY...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...S winds 15 to 25 kt. Seas 5 to 7 ft. .THU...SW winds 20 to 30 kt. Seas 7 to 10 ft. .THU NIGHT...W winds 25 to 35 kt. Seas 9 to 14 ft, building to 12 to 17 ft after midnight. .FRI...W winds 25 to 35 kt. Seas 15 to 20 ft. .FRI NIGHT...NW winds 15 to 25 kt. Seas 14 to 18 ft, subsiding to 10 to 15 ft after midnight. .SAT...NW winds 10 to 15 kt, shifting to N in the afternoon. Seas 7 to 10 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SUN...E winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft.