000 FZNT32 KNHC 170923 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 523 AM EDT Tue Aug 17 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...Recently upgraded Tropical Storm Grace near 18.2N 75.4W 1005 mb at 5 AM EDT moving W at 14 kt. Maximum sustained winds 35 kt gusts 45 kt. Grace will move to near 18.6N 77.6W this afternoon, to near 19.1N 80.7W late tonight, to near 19.7N 83.9W Wed afternoon with maximum sustained winds 50 kt gusts 60 kt, to near 20.4N 87.0W late Wed night with maximum sustained winds 60 kt gusts 75 kt, to inland the northern Yucatan Peninsula near 21.0N 90.0W Thu afternoon, to near 21.4n 92.7W late Thu night, to near 22.0N 97.2W late Fri night with maximum sustained winds 60 kt gusts 75 kt and to inland 22.3N 101.4W late Sat night. Fresh to strong east winds on the northern periphery of Grace are expected over the southeastern Gulf waters from Tue night through Wed night, shifting westward across the central Gulf through Sat night. Gulf of Mexico N of 26N W of 87W .TODAY...S winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .WED...SE winds 10 to 15 kt. Seas 3 ft. .WED NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. .THU...SE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 15 to 25 kt. Seas 6 to 8 ft. .FRI...SE winds 15 to 25 kt. Seas 6 to 9 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft. Gulf of Mexico from 22N to 26N W of 87W ...TROPICAL STORM WARNING... .TODAY...SE winds 10 to 15 kt. Seas 3 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 3 ft. .WED...SE winds 10 to 20 kt. Seas 3 to 4 ft. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to 20 kt, increasing to 25 to 35 kt late. Seas 4 to 6 ft, building to 7 to 11 ft late. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 35 to 45 kt. Seas 7 to 10 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. SW Gulf of Mexico S of 22N W of 87W ...TROPICAL STORM WARNING... .TODAY...Variable winds less than 10 kt within 60 nm of coast of Veracruz, and SE 10 to 15 kt elsewhere. Seas 2 ft or less. .TONIGHT...Within 60 nm of coast of Veracruz, E winds less than 10 kt, shifting to SE after midnight. Elsewhere, E winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft after midnight. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Veracruz, E winds 10 to 15 kt. Elsewhere, NE winds 10 to 20 kt, increasing to 25 to 35 kt late. Seas 3 to 4 ft, building to 6 to 9 ft late. .THU...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Veracruz, NE to E winds 10 to 15 kt. Elsewhere, NE winds 40 to 50 kt. Seas 3 to 4 ft within 60 nm of coast of Veracruz, and 7 to 11 ft elsewhere. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. Gulf of Mexico E of 87W ...TROPICAL STORM WARNING... .TODAY...S winds 10 to 20 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. .WED...E winds 10 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 40 kt. Seas 7 to 11 ft. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 30 to 40 kt, becoming SE 20 to 30 kt in the afternoon. Seas 7 to 11 ft. .THU NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.