000 FZNT24 KNHC 181502 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 1102 AM EDT Wed Aug 18 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. GMZ001-190315- Synopsis for the Gulf of Mexico 1102 AM EDT Wed Aug 18 2021 .SYNOPSIS...Hurricane Grace near 19.4N 82.2W 992 mb at 11 AM EDT moving WNW at 13 kt. Maximum sustained winds 65 kt gusts 80 kt. Grace will move to 19.7N 84.5W this evening, inland to 20.3N 87.6W Thu morning, weaken to a tropical storm near 20.6N 90.5W Thu evening, strengthen to a hurricane near 20.7N 93.2W Fri morning, 20.7N 95.3W Fri evening, and move inland and weaken to a tropical storm near 20.5N 97.7W Sat morning. Winds and seas will begin to increase across the southeastern Gulf ahead of Grace today. These conditions will shift to west of 90W Thu through late Fri night. $$ GMZ011-190315- NW Gulf including Stetson Bank- 1102 AM EDT Wed Aug 18 2021 .TODAY...SE to S winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...E to SE winds 15 to 20 kt. Seas 2 to 4 ft, building to 5 to 7 ft late. .FRI...SE winds 15 to 20 kt. Seas 6 to 9 ft in NE swell. .FRI NIGHT...SE winds 15 to 20 kt. Seas 6 to 9 ft in NE swell. .SAT...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in E to SE swell. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in SE to S swell. .SUN...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in SE swell. $$ GMZ013-190315- N Central Gulf including Flower Garden Banks Marine Sanctuary- 1102 AM EDT Wed Aug 18 2021 .TODAY...SE winds 10 to 15 kt in the afternoon. Seas 3 ft or less. .TONIGHT...SE winds 15 to 20 kt. Seas 2 to 4 ft. .THU...SE winds 15 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 20 to 25 kt. Seas 5 to 7 ft. .FRI...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in E to SE swell. .FRI NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in SE to S swell. .SAT...E winds 15 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ015-190315- NE Gulf N of 25N E of 87W- 1102 AM EDT Wed Aug 18 2021 .TODAY...E to SE winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .TONIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE to E winds 10 kt. Seas 4 to 6 ft in S swell. .FRI...E winds 10 to 15 kt S of 27N, and variable less than 5 kt elsewhere. Seas 3 to 5 ft. .FRI NIGHT...N to NE winds 10 kt. Seas 3 ft or less. .SAT...NE to E winds 10 kt. Seas 3 ft or less. .SAT NIGHT...E winds 10 kt. Seas 3 ft or less. .SUN...SE winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ017-190315- W Central Gulf from 22N to 26N W of 94W- 1102 AM EDT Wed Aug 18 2021 .TODAY...SE to S winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .TONIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 15 to 20 kt. Seas 3 to 5 ft, building to 6 to 8 ft in E swell late. Scattered showers and isolated tstms. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. NE to E winds 15 to 20 kt W of 96W, and E 30 to 35 kt elsewhere. Seas 9 to 13 ft in NE swell. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 7 to 10 ft in E to SE swell. .SUN...E to SE winds 20 to 25 kt, becoming SE 10 to 15 kt in the afternoon. Seas 6 to 8 ft. $$ GMZ019-190315- Central Gulf from 22N to 26N between 87W and 94W- 1102 AM EDT Wed Aug 18 2021 ...TROPICAL STORM WARNING... .TODAY...E to SE winds 15 to 20 kt in the afternoon. Seas 2 to 4 ft. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S of 24N, E winds 15 to 20 kt, increasing to 25 to 30 kt late. Elsewhere, E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 30 to 35 kt S of 24N, and E to SE 25 to 30 kt elsewhere. Seas 8 to 12 ft in NE to E swell. Scattered showers and isolated tstms. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 30 to 35 kt S of 24N, and E to SE 25 to 30 kt elsewhere. Seas 9 to 14 ft in NE swell. Scattered showers and isolated tstms. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 30 to 40 kt S of 24N, and E to SE 20 to 25 kt elsewhere. Seas 9 to 14 ft in NE to E swell. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in S to SW swell. .SAT NIGHT...E winds 20 to 25 kt. Seas 5 to 7 ft. .SUN...E winds 15 to 20 kt. Seas 5 to 7 ft. $$ GMZ021-190315- E Gulf from 22N to 25N E of 87W including Straits of Florida- 1102 AM EDT Wed Aug 18 2021 ...TROPICAL STORM WARNING... .TODAY...E winds 15 to 20 kt in the afternoon. Seas 4 to 6 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E to SE winds 30 to 35 kt. Seas 4 to 6 ft, building to 8 to 12 ft in E swell late. .THU...TROPICAL STORM CONDITIONS EXPECTED. E to SE winds 30 to 35 kt, diminishing to 20 to 25 kt in the afternoon. Seas 9 to 13 ft in E to SE swell. Scattered showers and isolated tstms. .THU NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft in S swell. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 3 ft or less. .SUN...E winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ023-190315- SW Gulf S of 22N W of 94W- 1102 AM EDT Wed Aug 18 2021 ...TROPICAL STORM WARNING... .TODAY...E to SE winds 10 to 15 kt in the afternoon. Seas 3 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E winds 10 kt, shifting to N to NE in the afternoon. Seas 2 to 4 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 10 kt S of 21N W of 95W, and N to NE 15 to 20 kt elsewhere. Seas 3 to 5 ft. Scattered showers and isolated tstms. .FRI...HURRICANE CONDITIONS POSSIBLE. S of 21N W of 95W, NW winds 10 to 15 kt, increasing to 20 to 25 kt in the afternoon. Elsewhere, NW to N winds 40 to 45 kt, increasing to 60 to 65 kt in the afternoon. Seas 7 to 11 ft in NE swell, building to 13 to 20 ft in NE swell in the afternoon. .FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in NE swell. .SUN...SE winds 15 to 20 kt. Seas 5 to 7 ft. $$ GMZ025-190315- E Bay of Campeche including Campeche Bank- 1102 AM EDT Wed Aug 18 2021 ...HURRICANE WARNING... .TODAY...E winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Campeche, NE winds 20 to 25 kt. Elsewhere, NE winds 15 to 20 kt, becoming NE to E 25 to 30 kt late. Seas 3 to 5 ft. .THU...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm of coast of Campeche, NE to E winds 10 to 15 kt, becoming NW to N 20 to 25 kt in the afternoon. Elsewhere, NE winds 35 to 40 kt. Seas 5 to 7 ft in NE swell. Scattered showers and isolated tstms. .THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. N to NE winds 40 to 45 kt, becoming E 50 to 55 kt late. Seas 9 to 13 ft. Numerous showers and scattered tstms. .FRI...HURRICANE CONDITIONS POSSIBLE. Within 60 nm of coast of Campeche, SE to S winds 25 to 30 kt, diminishing to 15 to 20 kt in the afternoon. Elsewhere, SE to S winds 60 to 65 kt, diminishing to 45 to 50 kt in the afternoon. Seas 12 to 19 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...E to SE winds 20 to 25 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 20 to 25 kt. Seas 5 to 7 ft. .SUN...E winds 15 to 20 kt. Seas 4 to 6 ft. $$ Forecaster AL