000 FZNT24 KNHC 200852 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 452 AM EDT Fri Aug 20 2021 Offshore Waters Forecast 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. GMZ001-202100- Synopsis for the Gulf of Mexico 452 AM EDT Fri Aug 20 2021 .SYNOPSIS...Tropical Storm Grace near 20.7N 93.3W 994 mb at 5 AM EDT moving W at 14 kt. Maximum sustained winds 60 kt gusts 75 kt. Grace will strengthen to a hurricane near 20.6N 95.2W this afternoon, move inland to 20.3N 97.4W Sat morning, and weaken to a tropical storm near 19.8N 99.7W Sat afternoon, weaken to a remnant low near 19.4N 102.2W Sun morning, and dissipate Sun afternoon. High pressure will build in the wake of Grace and prevail through early next week. $$ GMZ011-202100- NW Gulf including Stetson Bank- 452 AM EDT Fri Aug 20 2021 .TODAY...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in E swell. .TONIGHT...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in E to SE swell. .SAT...E to SE winds 10 to 15 kt. Seas 6 to 8 ft in SE to S swell. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in SE to S swell. .SUN...E to SE winds 10 kt. Seas 2 to 4 ft. .SUN NIGHT...E to SE winds 10 kt. Seas 2 to 4 ft. .MON...Variable winds less than 5 kt, becoming E 10 kt in the afternoon. Seas 3 ft or less. .MON NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt, becoming E 10 kt in the afternoon. Seas 3 ft or less. .TUE NIGHT...E to SE winds 10 kt. Seas 3 ft or less. $$ GMZ013-202100- N Central Gulf including Flower Garden Banks Marine Sanctuary- 452 AM EDT Fri Aug 20 2021 .TODAY...E to SE winds 15 to 20 kt W of 90W, and E to SE 10 to 15 kt elsewhere. Seas 6 to 8 ft in SE swell. .TONIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft in SE to S swell. .SAT...E to SE winds 10 kt. Seas 4 to 6 ft in SE to S swell. .SAT NIGHT...E to SE winds 10 kt. Seas 3 to 5 ft. .SUN...E winds 10 kt. Seas 2 to 4 ft. .SUN NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt, becoming NE to E 10 kt in the afternoon. Seas 3 ft or less. .MON NIGHT...E to SE winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt, becoming E 10 kt in the afternoon. Seas 3 ft or less. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ015-202100- NE Gulf N of 25N E of 87W- 452 AM EDT Fri Aug 20 2021 .TODAY...E winds 10 kt S of 27N, and variable less than 5 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...NE to E winds 10 kt S of 27N, and variable less than 5 kt elsewhere. Seas 3 ft or less. .SAT...E winds 10 kt S of 27N, and variable less than 5 kt elsewhere. Seas 3 ft or less. .SAT NIGHT...E winds 10 kt S of 27N, and variable less than 5 kt elsewhere. Seas 3 ft or less. .SUN...E to SE winds 10 kt. Seas 3 ft or less. .SUN NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt. Seas 3 ft or less. .MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .TUE...E to SE winds 10 to 15 kt. Seas 3 ft or less. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ017-202100- W Central Gulf from 22N to 26N W of 94W- 452 AM EDT Fri Aug 20 2021 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. W of 96W, NE to E winds 15 to 20 kt, increasing to 30 to 35 kt in the afternoon. Seas 6 to 8 ft, building to 8 to 12 ft in the afternoon. Elsewhere, E winds 35 to 40 kt. Seas 9 to 14 ft, building to 12 to 19 ft in the afternoon. Scattered showers and isolated tstms. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 35 kt. Seas 12 to 18 ft W of 96W, and 11 to 17 ft elsewhere. Scattered showers and isolated tstms. .SAT...E to SE winds 20 to 25 kt. W of 96W, seas 10 to 15 ft, subsiding to 7 to 10 ft in the afternoon. Elsewhere, seas 8 to 12 ft, subsiding to 6 to 9 ft in the afternoon. Scattered showers and isolated tstms. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft. .SUN...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E to SE winds 10 kt. Seas 2 to 4 ft. .MON...E to SE winds 10 kt. Seas 2 to 4 ft. .MON NIGHT...E winds 10 kt. Seas 3 ft or less. .TUE...E winds 10 kt. Seas 3 ft or less. .TUE NIGHT...E winds 10 kt. Seas 3 ft or less. $$ GMZ019-202100- Central Gulf from 22N to 26N between 87W and 94W- 452 AM EDT Fri Aug 20 2021 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. S of 24N, E to SE winds 30 to 40 kt. Seas 10 to 16 ft. Elsewhere, E to SE winds 20 to 25 kt. Seas 7 to 11 ft. Scattered showers and isolated tstms. .TONIGHT...E to SE winds 25 to 30 kt. Seas 7 to 10 ft. .SAT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .MON...E winds 10 kt. Seas 3 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .TUE...E winds 10 kt. Seas 3 ft or less. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ021-202100- E Gulf from 22N to 25N E of 87W including Straits of Florida- 452 AM EDT Fri Aug 20 2021 .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...E winds 10 kt. Seas 3 ft or less. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .SUN...E winds 10 kt. Seas 3 ft or less. .SUN NIGHT...E winds 10 kt. Seas 3 ft or less. .MON...E winds 10 kt. Seas 3 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 2 to 4 ft. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ023-202100- SW Gulf S of 22N W of 94W- 452 AM EDT Fri Aug 20 2021 ...HURRICANE WARNING... .TODAY...TROPICAL STORM CONDITIONS WITH HURRICANE CONDITIONS POSSIBLE. S of 21N W of 95W, NW winds 25 to 30 kt, becoming W to NW 40 to 45 kt in the afternoon. Elsewhere, NW to N winds 55 to 60 kt, becoming E 65 to 75 kt in the afternoon. Seas 12 to 18 ft, building to 17 to 26 ft in the afternoon. Numerous showers and isolated tstms. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. S of 21N W of 95W, SE to S winds 60 to 70 kt, becoming SE 45 to 50 kt late. Elsewhere, E to SE winds 40 to 50 kt. Seas 19 to 28 ft. Scattered showers and isolated tstms. .SAT...TROPICAL STORM CONDITIONS EXPECTED. E to SE winds 30 to 35 kt, diminishing to 20 to 25 kt in the afternoon. Seas 12 to 18 ft, subsiding to 6 to 9 ft in the afternoon. Scattered showers and isolated tstms. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft. Scattered showers and isolated tstms. .SUN...S of 21N W of 95W, S to SW winds 10 kt in the morning, becoming variable less than 5 kt. Elsewhere, E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .MON...NE winds 10 kt. Seas 3 ft or less. .MON NIGHT...N to NE winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt, becoming NW to N 10 kt in the afternoon. Seas 3 ft or less. .TUE NIGHT...N to NE winds 10 kt. Seas 3 ft or less. $$ GMZ025-202100- E Bay of Campeche including Campeche Bank- 452 AM EDT Fri Aug 20 2021 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. Within 60 nm of coast of Campeche, SE winds 20 to 25 kt. Elsewhere, SE to S winds 60 to 65 kt, becoming SE 35 to 40 kt in the afternoon. Seas 5 to 7 ft within 60 nm of coast of Campeche, and 13 to 20 ft elsewhere. Scattered showers and isolated tstms. .TONIGHT...E to SE winds 15 to 20 kt within 60 nm of coast of Campeche, and E to SE 25 to 30 kt elsewhere. Within 60 nm of coast of Campeche, seas 3 to 5 ft. Elsewhere, seas 8 to 12 ft, subsiding to 6 to 9 ft late. .SAT...E to SE winds 20 to 25 kt. Seas 6 to 8 ft. .SAT NIGHT...NE to E winds 20 to 25 kt. Seas 2 to 4 ft within 60 nm of coast of Campeche, and 4 to 6 ft elsewhere. .SUN...E winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 3 ft or less. .MON...E winds 10 to 15 kt. Seas 3 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .TUE...E winds 10 kt. Seas 3 ft or less. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. $$ Forecaster Lewitsky