000 FZNT32 KNHC 201459 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1059 AM EDT Fri Aug 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...Newly upgraded Hurricane Grace is near 20.6N 94.3W 982 mb at 11 AM EDT moving W at 12 kt. Maximum sustained winds 75 kt gusts 90 kt. Grace will move to 20.4N 95.9W this evening, move inland and weaken to a tropical storm near 20.0N 98.2W Sat morning, be near Michoacan, Mexico, Sat evening, and dissipate Sun morning. High pressure will build in the wake of Grace and prevail through early next week. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 3 ft. .MON...E winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .TUE...E winds less than 10 kt. Seas 2 ft or less. Gulf of Mexico from 22N to 26N W of 87W ...TROPICAL STORM WARNING... .THIS AFTERNOON...TROPICAL STORM CONDITIONS. E winds 30 to 40 kt. Seas 8 to 11 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt. Seas 8 to 11 ft. .SAT...E winds 20 to 30 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. .TUE...E 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. SW Gulf of Mexico S of 22N W of 87W ...HURRICANE WARNING... .THIS AFTERNOON...HURRICANE CONDITIONS. Within 60 nm of coast of Veracruz, NW winds 20 to 30 kt, increasing to 35 to 45 kt in the afternoon. Seas 8 to 11 ft, building to 11 to 16 ft in the afternoon. Elsewhere, SE winds 65 to 75 kt. Seas 11 to 16 ft. .TONIGHT...HURRICANE CONDITIONS EXPECTED. Within 60 nm of coast of Veracruz, E winds 70 to 80 kt, Seas 15 to 20 ft. Elsewhere, SE winds 70 to 80 kt, diminishing to 40 to 50 kt after midnight,Seas 9 to 14 ft, subsiding to 7 to 10 ft after midnight. .SAT...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm of coast of Veracruz, SE winds 40 to 50 kt, diminishing to 15 to 25 kt in the afternoon,Seas 9 to 14 ft, subsiding to 6 to 9 ft in the afternoon. Elsewhere, E winds 20 to 30 kt,Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .MON...N winds less than 10 kt within 60 nm of coast of Veracruz, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .MON NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .TUE...Within 60 nm of coast of Veracruz, N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 2 ft or less. Gulf of Mexico E of 87W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .SAT...E 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 10 to 15 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .SUN...E winds 10 to 15 kt. Seas 3 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft. .MON...E winds 10 to 15 kt. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .TUE...SE winds 10 to 20 kt. Seas 3 ft.