000 FZNT32 KNHC 120853 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 353 AM EST Tue Dec 12 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 ridge axis will meander from SE Texas to the Straits of Florida this week, except shifting S across the Yucatan Peninsula during the middle of the week. A cold front will move SE across the N-Central and E Gulf waters today, passing E of the area by late tonight. A second cold front will move into the NW Gulf on Thu, and race SE across the entire Gulf by late Fri night. A post frontal ridge will set up from the Florida Big Bend to Veracruz Mexico on Sat. Gulf of Mexico N of 26N W of 87W .TODAY...NW winds 10 to 20 kt, except 20 to 25 kt E of 94W behind front. Seas 4 to 6 ft, building to 5 to 8 ft E of 94W behind front. .TONIGHT...N winds 10 to 15 kt. Seas 4 to 7 ft. .WED...N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .WED NIGHT...SW winds less than 10 kt. Seas 2 ft or less. .THU...W winds 10 kt. Seas 2 ft or less. .THU NIGHT...W winds 10 to 15 kt. Seas 2 ft or less, building to 3 to 4 ft after midnight. .FRI...N winds 15 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. Gulf of Mexico from 22N to 26N W of 87W .TODAY...NW winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .WED...N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 3 ft. .THU...S winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .THU NIGHT...Variable winds less than 10 kt, becoming SW less than 10 kt after midnight. Seas 2 ft or less. .FRI...NW winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. SW Gulf of Mexico S of 22N W of 87W .TODAY...Within 60 nm of coast of Veracruz, N winds 10 to 15 kt. Elsewhere, N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. .TONIGHT...Within 60 nm of coast of Veracruz, N winds 10 to 15 kt. Elsewhere, N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 ft. .WED...Within 60 nm of coast of Veracruz, NW winds 10 to 15 kt, shifting to N in the afternoon. Elsewhere, N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 2 ft or less. .THU...SE winds less than 10 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .THU NIGHT...E winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .FRI...N winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. Gulf of Mexico E of 87W .TODAY...NW winds 10 to 20 kt, increasing to 20 to 25 kt behind front. Seas 5 to 8 ft. .TONIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .WED...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...W winds less than 10 kt. Seas 3 to 4 ft. .THU...SW winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .THU NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .FRI...W winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.