000 FZNT24 KNHC 230904 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 504 AM EDT Sat Aug 22 2020 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. GMZ001-232115- Synopsis for the Gulf of Mexico 504 AM EDT Sat Aug 22 2020 .SYNOPSIS...Tropical Storm Marco centered near 23.7N 87.0W 994 mb at 5 AM EDT is moving NNW at 11 kt. Maximum sustained winds 60 kt gusts 75 kt. Marco will intensify to a hurricane near 25.3N 87.6W this afternoon with maximum sustained winds 65 kt gusts to 80 kt, reach to near 27.3N 88.6W late tonight. Marco will maintain intensity as it reaches to near 29.0N 89.7W Mon afternoon and move inland and weaken to a tropical depression near 30.5N 93.1W Tue afternoon and move inland to near 31.0N 95.0W early on Wed and dissipate early on Thu. Tropical Storm Laura currently over Hispaniola will move across western Cuba Mon afternoon, then begin to gradually intensify as it moves over the southeastern Gulf of Mexico near 23.5N 84.2W late Mon night. Laura is forecast to reach near 24.9N 87.0W Tue afternoon with maximum sustained winds 60 kt gusts 75 kt, to near 26.4N 89.4W late Tue night with maximum sustained winds 75 kt gusts 90 kt and move inland near 29.9N 92.5W by late Wed night with maximum sustained winds 85 kt gusts 105 kt. Atlantic high pressure will build westward over the eastern Gulf in the wake of Laura. $$ GMZ011-232115- NW Gulf including Stetson Bank- 504 AM EDT Sat Aug 22 2020 .TODAY...NE winds 10 to 15 kt. Seas 3 ft or less. .TONIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft, building to 6 to 8 ft in E to SE swell late. Scattered showers and isolated thunderstorms. .MON...NE to E winds 10 to 15 kt. Seas 6 to 9 ft in E to SE swell. Scattered showers and isolated thunderstorms. .MON NIGHT...NE to E winds 10 to 15 kt. Seas 6 to 9 ft in E swell. Scattered showers and isolated thunderstorms. .TUE...N to NE winds 10 kt. Seas 7 to 10 ft in E swell. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 6 to 8 ft in E swell. .WED...TROPICAL STORM CONDITIONS POSSIBLE. N to NE winds 10 to 15 kt. Seas 7 to 10 ft in E swell. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S winds 10 to 15 kt. Seas 7 to 11 ft in E swell. .THU...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in E swell. $$ GMZ013-232115- N Central Gulf including Flower Garden Banks Marine Sanctuary- 504 AM EDT Sat Aug 22 2020 ...HURRICANE WARNING... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. W of 90W, NE to E winds 10 to 15 kt. Elsewhere, E to SE winds 15 to 20 kt, becoming E 30 to 35 kt in the afternoon. Seas 4 to 6 ft, building to 7 to 10 ft in E to SE swell in the afternoon. Scattered showers and isolated thunderstorms. .TONIGHT...HURRICANE CONDITIONS EXPECTED. NE to E winds 15 to 20 kt W of 90W, and NE to E 60 to 70 kt elsewhere. Seas 10 to 15 ft W of 90W, and 11 to 19 ft E of 90W except 20 to 28 ft S of 27N E of 89W. Numerous squalls and thunderstorms. .MON...TROPICAL STORM CONDITIONS EXPECTED. W of 90W, N to NE winds 20 to 25 kt. Elsewhere, S winds 55 to 65 kt, becoming SE 15 to 20 kt in the afternoon. Seas 10 to 15 ft in E swell, subsiding to 7 to 10 ft in E swell in the afternoon except 14 to 22 ft N of 27N E of 89W subsiding to 6 to 8 ft late. Numerous squalls and thunderstorms. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W of 90W, N to NE winds 15 to 20 kt, becoming E 10 kt late. Elsewhere, E winds 15 to 20 kt. Seas 6 to 8 ft in E swell, building to 8 to 12 ft in E swell late. Scattered showers and isolated thunderstorms. .TUE...HURRICANE CONDITIONS POSSIBLE. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ015-232115- NE Gulf N of 25N E of 87W- 504 AM EDT Sat Aug 22 2020 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS EXPECTED. S of 27N, E to SE winds 30 to 35 kt, becoming SE 45 to 50 kt in the afternoon. Elsewhere, E to SE winds 15 to 20 kt. Seas 7 to 11 ft in S swell. Scattered showers and thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 25 to 30 kt, becoming SE 15 to 20 kt late. Seas 7 to 11 ft in S to SW swell. Scattered showers and thunderstorms. .MON...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 20 to 25 kt S of 27N, and SE 15 to 20 kt elsewhere. Seas 5 to 7 ft. Scattered showers and isolated thunderstorms. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S of 27N, E winds 25 to 30 kt, increasing to 35 to 40 kt late. Elsewhere, E winds 15 to 20 kt, becoming E to SE 25 to 30 kt late. Seas 6 to 8 ft in SE to S swell, building to 10 to 15 ft in S to SW swell late. Scattered showers and isolated thunderstorms. .TUE...HURRICANE CONDITIONS POSSIBLE. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. .WED...TROPICAL STORM CONDITIONS POSSIBLE. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ017-232115- W Central Gulf from 22N to 26N W of 94W- 504 AM EDT Sat Aug 22 2020 .TODAY...Variable winds less than 5 kt, becoming N 10 to 15 kt in the afternoon. Seas 3 ft or less. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...N to NE winds 10 kt. Seas 5 to 7 ft in E swell. .MON NIGHT...NE winds 10 kt. Seas 4 to 6 ft in E swell. .TUE...Variable winds less than 5 kt, becoming N 10 kt in the afternoon. Seas 4 to 6 ft in NE to E swell. .TUE NIGHT...N to NE winds 10 kt in the evening, becoming variable less than 5 kt. Seas 4 to 6 ft in NE to E swell. .WED...W to NW winds 10 to 15 kt. Seas 6 to 8 ft in NE to E swell. .WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft in NE to E swell. .THU...SE winds 10 to 15 kt. Seas 5 to 7 ft in NE to E swell. $$ GMZ019-232115- Central Gulf from 22N to 26N between 87W and 94W- 504 AM EDT Sat Aug 22 2020 ...HURRICANE WARNING... .TODAY...HURRICANE CONDITIONS. S of 24N, N to NE winds 50 to 55 kt, becoming W 15 to 20 kt in the afternoon. Elsewhere, NE winds 55 to 65 kt. Seas 8 to 12 ft in E swell. Scattered showers and isolated thunderstorms E of 89W. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. S of 24N, NE winds 10 to 15 kt. Elsewhere, N to NE winds 55 to 65 kt, becoming NE to E 10 to 15 kt late. Seas 7 to 11 ft in E swell. Scattered showers and isolated thunderstorms. .MON...E winds 10 to 15 kt. Seas 6 to 8 ft in NE to E swell. .MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. .TUE...HURRICANE CONDITIONS POSSIBLE. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...E to SE winds 10 to 15 kt. Seas 6 to 8 ft in N swell. .THU...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ021-232115- E Gulf from 22N to 25N E of 87W including Straits of Florida- 504 AM EDT Sat Aug 22 2020 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. Straits of Florida, SE winds 15 to 20 kt. Elsewhere, SE to S winds 45 to 55 kt, except 55 to 65 kt W of 86W, diminishing to 30 to 35 kt in the afternoon. Seas 12 to 18 ft in NE to E swell, subsiding to 7 to 11 ft in E swell in the afternoon. Scattered to numerous showers and thunderstorms. .TONIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. Numerous showers and thunderstorms. .MON...TROPICAL STORM CONDITIONS EXPECTED. Straits of Florida, E winds 25 to 30 kt, becoming N 30 to 35 kt in the afternoon. Elsewhere, NE to E winds 15 to 20 kt. Seas 4 to 6 ft. Numerous squalls and thunderstorms. .MON NIGHT...TROPICAL STORM CONDITIONS EXPECTED. N to NE winds 35 to 45 kt. Seas 7 to 10 ft, building to 14 to 24 ft in NE to E swell late in Straits of Florida. Numerous squalls and thunderstorms. .TUE...HURRICANE CONDITIONS POSSIBLE. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .WED...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in W to NW swell. .WED NIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ023-232115- SW Gulf S of 22N W of 94W- 504 AM EDT Sat Aug 22 2020 .TODAY...Variable winds less than 5 kt, becoming N 10 kt in the afternoon. Seas 3 ft or less. .TONIGHT...N to NE winds 10 kt. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .MON...NW to N winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .MON NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. Scattered thunderstorms. .TUE...NW to N winds 10 to 15 kt. Seas 2 to 4 ft. .TUE NIGHT...N to NE winds 10 kt. Seas 2 to 4 ft. .WED...Variable winds less than 5 kt, becoming N 10 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...E winds 10 kt, shifting to E to SE 15 to 20 kt late. Seas 4 to 6 ft. .THU...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ025-232115- E Bay of Campeche including Campeche Bank- 504 AM EDT Sat Aug 22 2020 .TODAY...Within 60 nm of coast of Campeche, E to SE winds 10 kt in the morning, becoming variable less than 5 kt. Elsewhere, NE to E winds 10 to 15 kt, shifting to NW to N in the afternoon. Seas 3 ft or less. Isolated thunderstorms. .TONIGHT...N to NE winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .MON...E to SE winds 10 kt, shifting to NW in the afternoon. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .MON NIGHT...N to NE winds 10 to 15 kt. Seas 3 ft or less, building to 3 to 5 ft late. Scattered showers and isolated thunderstorms. .TUE...SE winds 10 kt, shifting to NW in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...N to NE winds 10 kt, shifting to E late. Seas 3 to 4 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .THU...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. $$ Forecaster Aguirre