000 FZNT32 KNHC 172126 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 426 PM EST Tue Dec 17 2019 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 extends from Apalachicola, Florida to 25N90W and to inland Mexico at 18N94W. A squall line consisting of numerous showers and thunderstorms is just ahead of the front. The squall line will continue racing east-southeast across the rest of the eastern Gulf through late tonight. The front will move southeast across the Gulf and extend from Tampa Bay Florida to central Yucatan tonight, before moving southeast of the area Wed. Northerly gale force winds and very large seas will prevail behind the front, mainly W of 90W, through late Wed. Winds and seas will diminish over the central and western Gulf Thu and Thu night. Strong NE to E winds will continue over the Straits of Florida after the frontal passage Thu through Fri night. Low pressure may develop over the eastern Gulf Fri night and move across Florida this weekend. Gulf of Mexico N of 26N W of 87W .TONIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. .WED...N winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...N winds 15 to 25 kt. Seas 7 to 10 ft. .SUN NIGHT...N winds 20 to 30 kt. Seas 8 to 11 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE WARNING S OF 24N... .TONIGHT...N winds 20 to 30 kt, except with frequent gusts to 35 kt S of 24N. Seas 8 to 11 ft, except 9 to 14 ft S of 24N. .WED...N winds 20 to 30 kt. Seas 8 to 13 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .THU...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...N winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...N winds 10 to 20 kt. Seas 7 to 9 ft. .SUN NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE WARNING... .TONIGHT...NW winds 25 to 35 kt within 60 nm of coast of Veracruz, and N 20 to 30 kt elsewhere. Seas 12 to 17 ft within 60 nm of coast of Veracruz, and 8 to 13 ft elsewhere. .WED...NW winds 25 to 35 kt within 60 nm of coast of Veracruz, and N 20 to 30 kt elsewhere. Seas 11 to 16 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 8 to 13 ft. .THU...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. .FRI...NE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...N winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...N winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. Gulf of Mexico E of 87W ...GALE CONDITIONS POSSIBLE N OF 28N SAT NIGHT... ...GALE CONDITIONS POSSIBLE W OF 85W SUN NIGHT.... .TONIGHT...NW winds 15 to 25 kt. Seas 5 to 7 ft. .WED...N winds 15 to 25 kt. Seas 7 to 10 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 8 to 13 ft. .THU...NE winds 15 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .FRI...E winds 15 to 25 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...SE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...NW winds 15 to 25 kt, except N of 28N NE to to E winds 25 to 35 kt. Seas 8 to 11 ft. .SUN...NW winds 15 to 25 kt. Seas 7 to 10 ft. .SUN NIGHT...NW winds 20 to 30 kt, except W of 85W NW to N winds 25 to 35 kt. Seas 6 to 9 ft, except W of 85W 10 to 14 ft.