000 FZNT24 KNHC 232115 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 515 PM EDT Sun Aug 23 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. GMZ001-240915- Synopsis for the Gulf of Mexico 515 PM EDT Sun Aug 23 2020 .SYNOPSIS...Hurricane Marco near 25.8N 87.8W 991 mb at 5 PM EDT moving NNW at 11 kt. Maximum sustained winds are 65 kt with gusts 80 kt. Marco will move to 27.1N 88.6W Mon morning, 28.5N 89.7W Mon afternoon, then will move inland and weaken to a tropical storm near 29.3N 91.4W Tue morning. Marco will move further inland to 29.8N 93.2W Tue afternoon. Marco will dissipate Thu afternoon. Tropical Storm Laura near 19.5N 75.2W 1000 mb at 5 PM EDT moving WNW at 18 kt. Maximum sustained winds are 50 kt with gusts 60 kt. Laura will move to 20.6N 78.3W Mon morning, 21.8N 81.7W Mon afternoon as it approaches the southeast Gulf. Laura will move to 23.3N 84.9W Tue morning, 24.7N 87.7W Tue afternoon, strengthen to a hurricane near 26.1N 90.2W Wed morning, and reach 28.0N 92.5W Wed afternoon near the Louisiana and Texas border before going inland and weakening through Thu. Atlantic high pressure will build westward over the eastern Gulf in the wake of Laura. $$ GMZ011-240915- NW Gulf including Stetson Bank- 515 PM EDT Sun Aug 23 2020 .TONIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. Scattered showers and isolated tstms. .MON NIGHT...NE to E winds 10 kt. Seas 4 to 6 ft in E swell. .TUE...N winds 10 kt. Seas 3 to 5 ft. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N to NE winds 10 kt, shifting to NE to E late. Seas 2 to 4 ft. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...S winds 15 to 20 kt. Seas 6 to 9 ft in NE to E swell, subsiding to 4 to 6 ft in the afternoon. .THU NIGHT...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ013-240915- N Central Gulf including Flower Garden Banks Marine Sanctuary- 515 PM EDT Sun Aug 23 2020 ...HURRICANE WARNING... .TONIGHT...HURRICANE CONDITIONS EXPECTED. NE to E winds 15 to 20 kt W of 90W, and E 55 to 65 kt elsewhere. Seas 10 to 16 ft in E to SE swell. Scattered showers and isolated tstms. .MON...HURRICANE CONDITIONS EXPECTED. W of 90W, N to NE winds 30 to 35 kt. Elsewhere, S winds 55 to 65 kt, becoming SE to S 30 to 35 kt in the afternoon. Seas 10 to 16 ft in E swell, subsiding to 7 to 10 ft in E swell in the afternoon. Scattered showers and isolated tstms. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE to E winds 20 to 25 kt. Seas 5 to 7 ft. .TUE...TROPICAL STORM CONDITIONS EXPECTED. W of 90W, N to NE winds 10 to 15 kt. Elsewhere, E winds 20 to 25 kt, increasing to 30 to 35 kt in the afternoon. Seas 4 to 6 ft, building to 7 to 11 ft in NE to E swell in the afternoon. Scattered showers and isolated tstms. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. W of 90W, N to NE winds 30 to 35 kt, becoming NE 45 to 50 kt late. Elsewhere, E to SE winds 40 to 50 kt. Seas 13 to 20 ft in NE to E swell. Scattered showers and isolated tstms. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...TROPICAL STORM CONDITIONS POSSIBLE. .THU NIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ015-240915- NE Gulf N of 25N E of 87W- 515 PM EDT Sun Aug 23 2020 ...TROPICAL STORM WARNING... .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 25 to 30 kt. Seas 7 to 10 ft in S to SW swell. Scattered showers and isolated tstms. .MON...E to SE winds 20 to 25 kt S of 27N, and SE 15 to 20 kt elsewhere. Seas 5 to 7 ft. Scattered showers and isolated tstms. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to 30 kt S of 27N, and E to SE 20 to 25 kt elsewhere. Seas 5 to 7 ft, building to 8 to 12 ft in SW swell late. Scattered showers and isolated tstms. .TUE...TROPICAL STORM CONDITIONS EXPECTED. E to SE winds 35 to 45 kt S of 27N, and E to SE 25 to 30 kt elsewhere. Seas 11 to 17 ft in NE swell. Scattered showers and isolated tstms. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 25 to 30 kt. Seas 11 to 17 ft in E to SE swell, subsiding to 8 to 12 ft in S swell late. .WED...E to SE winds 15 to 20 kt. Seas 6 to 8 ft in S to SW swell. .WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...SE winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...SE to S winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ017-240915- W Central Gulf from 22N to 26N W of 94W- 515 PM EDT Sun Aug 23 2020 .TONIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. .MON...Variable winds less than 5 kt, becoming N 10 kt in the afternoon. Seas 3 to 5 ft. Scattered showers and isolated tstms. .MON NIGHT...NE winds 10 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE...N to NE winds 10 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE NIGHT...N to NE winds 10 kt in the evening, becoming variable less than 5 kt. Seas 2 to 4 ft. .WED...TROPICAL STORM CONDITIONS POSSIBLE. W to NW winds 10 kt. Seas 6 to 8 ft in NE to E swell. .WED NIGHT...SE winds 10 to 15 kt. Seas 7 to 10 ft in NE to E swell. .THU...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in NE to E swell. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ019-240915- Central Gulf from 22N to 26N between 87W and 94W- 515 PM EDT Sun Aug 23 2020 ...HURRICANE WARNING... .TONIGHT...HURRICANE CONDITIONS. S of 24N, NE winds 10 kt. Elsewhere, N to NE winds 55 to 65 kt, becoming NE to E 15 to 20 kt late. Seas 6 to 9 ft in NE to E swell. .MON...E winds 10 kt. Seas 4 to 6 ft in NE to E swell. Scattered showers and isolated tstms. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to 20 kt. Seas 3 to 5 ft. .TUE...TROPICAL STORM CONDITIONS EXPECTED. S of 24N, N to NE winds 40 to 45 kt, becoming NW 30 to 35 kt in the afternoon. Elsewhere, NE winds 40 to 45 kt, becoming N 50 to 55 kt in the afternoon. Seas 4 to 6 ft, building to 10 to 16 ft in NE to E swell in the afternoon. Scattered showers and isolated tstms. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. S of 24N, NW winds 20 to 25 kt, shifting to S to SW 15 to 20 kt late. Elsewhere, NW to N winds 45 to 50 kt, shifting to W late. Seas 12 to 18 ft in NE to E swell. Scattered showers and isolated tstms. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 10 to 15 kt. Seas 6 to 8 ft in NW to N swell. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE winds 15 to 20 kt. Seas 3 to 5 ft. $$ GMZ021-240915- E Gulf from 22N to 25N E of 87W including Straits of Florida- 515 PM EDT Sun Aug 23 2020 ...TROPICAL STORM WARNING... .TONIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated tstms. .MON...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 30 to 35 kt Straits of Florida, and NE to E 15 to 20 kt elsewhere. Seas 3 to 5 ft. Scattered showers and isolated tstms. .MON NIGHT...TROPICAL STORM CONDITIONS EXPECTED. NE winds 40 to 50 kt. Seas 7 to 10 ft, building to 12 to 19 ft late. Scattered showers and isolated tstms. .TUE...TROPICAL STORM CONDITIONS EXPECTED. Straits of Florida, SE to S winds 25 to 30 kt, becoming SE 15 to 20 kt in the afternoon. Elsewhere, SE to S winds 45 to 55 kt. Seas 14 to 21 ft in E swell. Scattered showers and isolated tstms. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 10 to 15 kt Straits of Florida, and SE 20 to 25 kt elsewhere. Seas 8 to 12 ft, subsiding to 5 to 7 ft late. Scattered showers and isolated tstms. .WED...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E to SE 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 10 to 15 kt. Seas 2 to 4 ft. .FRI...SE winds 15 to 20 kt. Seas 3 to 5 ft. $$ GMZ023-240915- SW Gulf S of 22N W of 94W- 515 PM EDT Sun Aug 23 2020 .TONIGHT...N to NE winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON...NW to N winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON NIGHT...N winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...NW to N winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE NIGHT...N to NE winds 10 kt in the evening, becoming variable less than 5 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .WED...Variable winds less than 5 kt. Seas 3 to 5 ft in NE swell. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ025-240915- E Bay of Campeche including Campeche Bank- 515 PM EDT Sun Aug 23 2020 .TONIGHT...N to NE winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON...E to SE winds 10 kt, shifting to W to NW in the afternoon. Seas 3 ft or less. Scattered showers and isolated tstms. .MON NIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE...SE winds 10 kt, shifting to NW in the afternoon. Seas 2 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE to E winds 10 kt within 60 nm of coast of Campeche, and E 15 to 20 kt elsewhere. Seas 2 to 4 ft. $$ Forecaster Christensen