000 FZNT32 KNHC 191444 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1044 AM EDT Mon Mar 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 ridge over the northern Gulf will shift E ahead of a cold front moving off the Texas coast this afternoon. The front will extend from the Florida Big Bend area to Veracruz Mexico early Tue, just as a reinforcing push of cold air moves off the Texas coast. The reinforcing cold air will strengthen the front late Tue as strong winds and building seas develop over the northern Gulf. The front will exit SE of the Gulf by early Wed. Winds and seas diminish across the Gulf Thu and Fri as high pressure follows the front across the northern Gulf. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...NW winds 15 to 25 kt. Seas 5 to 7 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft. .WED...N winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...SE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. Gulf of Mexico from 22N to 26N W of 87W .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...S winds less than 10 kt, shifting to NE after midnight. Seas 3 to 4 ft. .TUE...N winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. SW Gulf of Mexico S of 22N W of 87W .THIS AFTERNOON...SE winds less than 10 kt within 60 nm of coast of Veracruz, and SE 10 to 20 kt elsewhere. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .TUE...Within 60 nm of coast of Veracruz, NW winds less than 10 kt, shifting to N in the afternoon. Elsewhere, N winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Gulf of Mexico E of 87W .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 ft. .TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SW winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NW winds 15 to 25 kt. Seas 6 to 8 ft. .WED...N winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...N winds 15 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.