000 FZNT32 KNHC 161538 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1138 AM EDT Fri Apr 16 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 weak cold front extends from near Crystal River, Florida, to south of the mouth of the Mississippi River, where it transitions to a warm front and and continues westward to Corpus Christi, Texas. The front will remain over the northern Gulf into Saturday, before being overtaken by a cold front that will stretch from the Florida Peninsula to Bay of Campeche by the end of the weekend. Behind the front, gales will develop offshore Tampico, Mexico, Saturday night. Areas of smoke and haze in the western Gulf will reduce visibility at times today. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...S winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...SE winds less than 10 kt. Seas 3 ft. .SAT...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft, building to 4 to 6 ft in the afternoon. .SAT NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE WARNING... .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...N winds 25 to 35 kt W of 96W, and N to NE 20 to 25 kt elsewhere. Seas 7 to 10 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .MON...NE winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 15 kt. Seas 4 to 5 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. SW Gulf of Mexico S of 22N W of 87W .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...Within 60 nm of coast of Veracruz, SE winds 10 to 20 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...Within 60 nm of coast of Veracruz, N winds 10 to 15 kt, shifting to NW 15 to 25 kt after midnight,Seas 3 to 5 ft, building to 6 to 8 ft after midnight. Elsewhere, NE winds 10 to 15 kt,Seas 3 to 4 ft. .SUN...NW winds 15 to 25 kt. Seas 5 to 7 ft. .SUN NIGHT...NW winds 15 to 25 kt. Seas 6 to 8 ft. .MON...NW winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...N winds 10 to 15 kt, shifting to S after midnight. Seas 5 to 7 ft. .TUE...NW winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Gulf of Mexico E of 87W .THIS AFTERNOON...S winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...S winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less, building to 3 ft after midnight. .SAT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .MON...S winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 10 to 15 kt, shifting to W after midnight. Seas 3 to 5 ft.