000 FZNT32 KNHC 210852 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 452 AM EDT Sun May 21 2023 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...Weak high pressure will dominate the Gulf of Mexico through early next week, inducing light to gentle winds and slight seas. A diurnal trough will move offshore each night W of the Yucatan Peninsula, with moderate N to NE winds ahead of it. A weak frontal trough will sink into the northern Gulf Wed and move southward, and gradually produce gentle to moderate N to NE winds across the entire basin. Popocatepetl Volcano in Mexico near 19N98.6W has produced 2 large eruptions overnight, moving ENE away from the volcano. Ash aloft has recently moved over water and may be reaching the surface from 19N to 22N between 96W and the Mexican coast. Visibilities may be restricted 3 to 5 nm across this area. Mariners should exercise caution. Gulf of Mexico N of 26N W of 87W .TODAY...N winds less than 10 kt. Seas 2 ft or less. .TONIGHT...N winds 10 kt. Seas 2 ft or less. .MON...Variable winds less than 10 kt, becoming N less than 10 kt in the afternoon. Seas 2 ft or less. .MON NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .TUE...Variable winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .WED...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Gulf of Mexico from 22N to 26N W of 87W .TODAY...N winds less than 10 kt. Seas 2 ft or less. .TONIGHT...NE winds less than 10 kt. Seas 2 ft or less. .MON...Variable winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...E winds less than 10 kt. Seas 2 ft or less. .TUE...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .WED...NE winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...NE winds 10 kt. Seas 2 ft or less. .THU...NE winds 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. SW Gulf of Mexico S of 22N W of 87W .TODAY...Within 60 nm of coast of Veracruz, N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Elsewhere, NE winds 10 to 15 kt, shifting to N in the afternoon. Seas 3 to 4 ft. .TONIGHT...Within 60 nm of coast of Veracruz, N winds 10 to 15 kt, shifting to NE after midnight. Elsewhere, NE winds 10 to 15 kt. Seas 3 ft. .MON...N winds less than 10 kt. Seas 3 ft. .MON NIGHT...E winds less than 10 kt within 60 nm of coast of Veracruz, and NE 10 to 15 kt elsewhere. Seas 3 ft. .TUE...E winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .WED...NE winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .THU...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 ft. Gulf of Mexico E of 87W .TODAY...N winds 10 kt. Seas 2 ft or less. .TONIGHT...N winds less than 10 kt. Seas 2 ft or less. .MON...Variable winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .TUE...Variable winds less than 10 kt, becoming NW less than 10 kt in the afternoon. Seas 2 ft or less. .TUE NIGHT...N winds 10 kt. Seas 2 ft or less. .WED...NW winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .THU...N winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.