000 FZNT32 KNHC 220900 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 500 AM EDT Sat Aug 22 2020 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...Tropical Storm Marco near 19.6N 85.4W 1005 mb at 5 AM EDT is moving NNW at 10 kt. Maximum sustained winds 40 kt gusts 50 kt. Marco will gradually intensify as it moves to just east of the northeastern tip of the Yucatan Peninsula near 20.9N 86.1W this afternoon, to over the extreme southern Gulf of Mexico near 22.5N 87.1W late tonight with maximum sustained winds 50 kt gusts to 60 kt, to the south-central Gulf of Mexico near 24.1N 88.3W Sun afternoon with maximum sustained winds 55 kt gusts 65 kt. Marco will strengthen a little more as it reaches near 25.7N 89.9W late Sun night with maximum sustained winds 60 kt gusts 75 kt, and begin to weaken as it reaches near 27.3N 91.3W Mon afternoon. Marco is forecast to continue to weaken as it nears 28.3N 93.4W late Mon night and to inland Texas near 29.1N 96.2W late by Tue night. Tropical Storm Laura over the Tropical Atlantic is forecast to move across western Cuba near 23.1N 81.8W Mon afternoon, then move over the southeastern Gulf of Mexico near 24.6N 84.7W late Mon night with maximum winds 55 kt gusts to 65 kt. Laura is forecast to strengthen to a hurricane over the north- central Gulf of Mexico near 27.5N 89.5W late Tue night with maximum sustained winds 75 kt gusts 90 kt. It is forecast to begin to weaken as it reaches to near 31.0N 92.0W late Wed night. Gulf of Mexico N of 26N W of 87W ...TROPICAL STORM WARNING... .TODAY...SE winds 10 to 15 kt. Seas 2 ft or less. .TONIGHT...SE winds 10 to 20 kt. Seas 2 ft or less, building to 3 to 4 ft after midnight. .SUN...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 15 to 25 kt, increasing to 45 to 55 kt after midnight. Seas 5 to 7 ft. .MON...TROPICAL STORM CONDITIONS POSSIBLE. E winds 45 to 55 kt. Seas 6 to 9 ft, building to 7 to 10 ft in the afternoon W of 94W and to 11 to 17 ft between 87W and 94W. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .TUE...HURRICANE CONDITIONS POSSIBLE. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. .WED...HURRICANE CONDITIONS POSSIBLE. Gulf of Mexico from 22N to 26N W of 87W ...TROPICAL STORM WARNING BETWEEN 87W AND 94W... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 10 to 15 kt, increasing to 15 to 25 kt in the afternoon. Seas 3 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt. Seas 4 to 6 ft. .SUN...TROPICAL STORM CONDITIONS EXPECTED. NE winds 40 to 50 kt. Seas 5 to 7 ft. .SUN NIGHT...TROPICAL STORM CONDITIONS EXPECTED. NE winds 45 to 55 kt. Seas 6 to 9 ft, except 16 to 23 ft E of 94W. .MON...TROPICAL STORM CONDITIONS POSSIBLE. N winds 45 to 55 kt, diminishing to 20 to 30 kt in the afternoon. Seas 6 to 9 ft. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .TUE...HURRICANE CONDITIONS POSSIBLE. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. .WED...TROPICAL STORM CONDITIONS POSSIBLE. SW Gulf of Mexico S of 22N W of 87W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Veracruz, SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Elsewhere, E winds 10 to 20 kt. Seas 2 ft or less. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds less than 10 kt within 60 nm of coast of Veracruz, and NE 35 to 45 kt elsewhere. Seas 2 ft or less. .SUN...Within 60 nm of coast of Veracruz, Variable winds less than 10 kt. Elsewhere, NE winds 20 to 30 kt, becoming NW 10 to 15 kt in the afternoon. Seas 2 ft or less. .SUN NIGHT...N winds less than 10 kt within 60 nm of coast of Veracruz, and NE 10 to 15 kt elsewhere. Seas 2 ft or less. .MON...NW winds less than 10 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .MON NIGHT...E winds less than 10 kt. Seas 3 ft. .TUE...SE winds less than 10 kt, shifting to N in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...NE winds less than 10 kt within 60 nm of coast of Veracruz, and NE 10 to 15 kt elsewhere. Seas 3 to 4 ft. .WED...Variable winds less than 10 kt within 60 nm of coast of Veracruz, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. Gulf of Mexico E of 87W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 15 to 25 kt. Seas 3 to 5 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt. Seas 4 to 6 ft. .SUN...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 35 to 45 kt, diminishing to 15 to 25 kt in the afternoon. Seas 5 to 7 ft. .SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to 35 kt, increasing to 35 to 45 kt in the afternoon. Seas 3 to 5 ft. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .TUE...HURRICANE CONDITIONS POSSIBLE. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .WED...TROPICAL STORM CONDITIONS POSSIBLE.