000 FZNT32 KNHC 182040 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 340 PM EST Sat Nov 18 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...High pressure is building across the Gulf waters producing light to gentle NW to N winds over the western half of the Gulf, and mainly moderate N winds over the eastern half of the Gulf, including the Yucatan Channel. These winds will veer to the E and SE on Sun. Southerly return flow will increase over the western Gulf Sun night ahead of the next cold front which will move off the Texas coast Mon night into Tue. Gale conditions are likely in the wake of the front over the west-central and SW parts of the Gulf Tue through Wed. Seas are forecast to build to 14 to 16 ft over the SW Gulf by Tue night into Wed morning. Gulf of Mexico N of 26N W of 87W .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .SUN...SE winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...S winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. .WED...N winds 15 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .THU...N winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 3 to 4 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE CONDITIONS POSSIBLE... .TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .SUN...SE winds less than 10 kt. Seas 3 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt, shifting to N 15 to 25 kt in the afternoon. Seas 5 to 7 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .WED...N winds 15 to 25 kt. Seas 7 to 10 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .THU...N winds 10 to 15 kt, shifting to NE in the afternoon. Seas 5 to 7 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE CONDITIONS POSSIBLE... .TONIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft. .SUN...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 2 ft or less. .SUN NIGHT...SE winds 10 to 20 kt. Within 60 nm of coast of Veracruz, seas 3 to 5 ft. Elsewhere, seas 2 ft or less, building to 3 ft after midnight. .MON...SE winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SE winds 10 to 15 kt, shifting to W 10 to 20 kt in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...N winds 20 to 30 kt. Seas 7 to 10 ft. .WED...N winds 20 to 30 kt. Seas 8 to 11 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. .THU...N winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Gulf of Mexico E of 87W .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...NE winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less. .MON...SE winds 10 to 15 kt. Seas 2 ft or less. .MON NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NW winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .THU...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.