000 FZNT32 KNHC 190323 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1023 PM EST Mon Jan 18 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...High pressure over the northwest Gulf will shift eastward across the northern Gulf through Fri. A cold front will move over the northern Gulf Sat and become stationary into Sat night. Fresh to strong southerly return flow will set up over the NW Gulf tonight into Tue between the high pressure and lower pressure farther west over northeast Mexico. These winds will diminish some by Wed. A trough will form off the west coast of the Yucatan Peninsula each night through Wed night, supporting brief pulses of fresh to strong winds. Gulf of Mexico N of 26N W of 87W .TONIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SW winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...SW winds 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .SAT...Variable winds less than 10 kt, becoming E less than 10 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Gulf of Mexico from 22N to 26N W of 87W .TONIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SAT...SE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. SW Gulf of Mexico S of 22N W of 87W .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 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. Seas 2 ft or less. .SAT...SE winds 10 to 15 kt, shifting to E 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 ft. Gulf of Mexico E of 87W .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .FRI...S winds less than 10 kt. Seas 3 ft. .FRI NIGHT...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.