000 FZNT32 KNHC 210318 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1018 PM EST Wed Jan 20 2021 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 will extend across the northern Gulf through Fri. A trough will form off the west coast of the Yucatan Peninsula overnight, supporting brief pulses of fresh to strong winds. A cold front will move over the northern Gulf Sat and become stationary into Sat night. The western part of the front will begin to lift north as a warm front late Sat night through Sun, while the rest of the front dissipates as Atlantic high pressure builds westward across the area through Sun night. Gulf of Mexico N of 26N W of 87W .TONIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 4 ft. .THU...S winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds less than 10 kt. Seas 3 ft. .SAT...SE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...S winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...S winds less than 10 kt. Seas 4 to 5 ft. Gulf of Mexico from 22N to 26N W of 87W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 ft. .SAT...SE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...S winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 5 ft. SW Gulf of Mexico S of 22N W of 87W .TONIGHT...Within 60 nm of coast of Veracruz, E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Elsewhere, E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...Within 60 nm of coast of Veracruz, SE winds less than 10 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. .SAT...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or less. .SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SE winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. Gulf of Mexico E of 87W .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SE winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .THU NIGHT...S winds less than 10 kt. Seas 2 ft or less. .FRI...SW winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...SW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 2 ft or less. .SAT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less. .SUN...E winds 10 to 15 kt. Seas 3 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 ft. .MON...S winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.