000 FZNT24 KNHC 100843 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 443 AM EDT Sun Sep 10 2017 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. GMZ001-102045- Synopsis for the Gulf of Mexico 443 AM EDT Sun Sep 10 2017 .SYNOPSIS...Major Hurricane Irma in the Straits of Florida near 24.1N 81.5W, 928 mb at 5 AM EDT moving NW at 7 kt. Maximum sustained winds 115 kt gusts 140 kt. Irma will reach 25.4N 82.0W this afternoon, then continue northward along the W coast of Florida, reaching 27.8N 82.8W tonight, then inland to 30.5N 84.1W Mon afternoon, then weaken to a tropical storm inland near 32.7N 85.8W Mon night, before weakening further dissipating through mid week. $$ GMZ011-102045- NW Gulf including Stetson Bank- 443 AM EDT Sun Sep 10 2017 .TODAY...NE winds 15 kt. Seas 5 to 6 ft. .TONIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft. .MON...N to NE winds 15 kt. Seas 6 to 7 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NW to N winds 5 to 10 kt. Seas 3 to 5 ft. .TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft in the evening, becoming 2 ft or less. .WED...S to SW winds 5 to 10 kt. Seas 2 ft or less. .WED NIGHT...S winds 10 to 15 kt. Seas 2 ft or less. .THU...S winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less. $$ GMZ013-102045- N Central Gulf including Flower Garden Banks Marine Sanctuary- 443 AM EDT Sun Sep 10 2017 .TODAY...NE winds 20 to 25 kt. Seas 7 to 10 ft in NE to E swell. .TONIGHT...N to NE winds 20 to 25 kt. Seas 8 to 11 ft in NE to E swell. Scattered showers and isolated thunderstorms. .MON...N winds 20 to 25 kt. Seas 8 to 11 ft in NE to E swell. .MON NIGHT...NW to N winds 15 to 20 kt. Seas 6 to 8 ft. .TUE...NW winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 4 ft in the evening, becoming 2 ft or less. .WED...SW to W winds 5 to 10 kt. Seas 2 ft or less. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft or less. .THU...SW winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...W winds 5 to 10 kt, shifting to SE late. Seas 2 ft or less. $$ GMZ015-102045- NE Gulf N of 25N E of 87W- 443 AM EDT Sun Sep 10 2017 ...HURRICANE WARNING... .TODAY...HURRICANE CONDITIONS. S of 27N, N to NE winds 55 to 65 kt, becoming N 65 to 85 kt in the afternoon. Seas 18 ft, building to 24 ft in the afternoon. Elsewhere, NE winds 25 to 30 kt, becoming N to NE 35 to 40 kt in the afternoon. Seas 10 to 12 ft. Scattered showers and isolated thunderstorms. VSBY 1 NM or less. .TONIGHT...HURRICANE CONDITIONS EXPECTED. S of 27N, NW winds 55 to 75 kt. Seas 20 to 24 ft. Elsewhere, N winds 45 to 65 kt. Seas 18 to 20 ft. Numerous showers and isolated thunderstorms. VSBY 1 NM or less. .MON...TROPICAL STORM CONDITIONS EXPECTED. S of 27N, NW winds 40 to 45 kt, diminishing to 25 to 30 kt in the afternoon. Elsewhere, NW winds 60 to 70 kt, diminishing to 40 to 50 kt in the afternoon. Seas 14 to 17 ft. Scattered showers and isolated thunderstorms. .MON NIGHT...W to NW winds 15 to 20 kt S of 27N, and W to NW 20 to 30 kt elsewhere. Seas 7 to 10 ft in NW to N swell. .TUE...W winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 4 ft. .WED...S to SW winds 5 to 10 kt. Seas 3 ft in the morning, becoming 2 ft or less. .WED NIGHT...S to SW winds 5 to 10 kt. Seas 2 ft or less. .THU...SW winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...S winds 5 to 10 kt. Seas 2 ft or less. $$ GMZ017-102045- W Central Gulf from 22N to 26N W of 94W- 443 AM EDT Sun Sep 10 2017 .TODAY...N to NE winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft. .MON...N winds 10 to 15 kt. Seas 6 to 8 ft in NE to E swell. .MON NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NW to N winds 5 to 10 kt. Seas 4 to 6 ft in NE to E swell. .TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. .WED...S to SW winds 5 to 10 kt. Seas 3 to 4 ft. .WED NIGHT...SE to S winds 10 to 15 kt. Seas 2 ft or less. .THU...SE to S winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...SE to S winds 10 to 15 kt. Seas 2 ft or less. $$ GMZ019-102045- Central Gulf from 22N to 26N between 87W and 94W- 443 AM EDT Sun Sep 10 2017 .TODAY...N to NE winds 15 to 20 kt. Seas 7 to 10 ft in NE to E swell. .TONIGHT...N winds 15 to 20 kt. Seas 7 to 10 ft in NE to E swell. .MON...N winds 15 to 20 kt. Seas 7 to 10 ft in NE swell. .MON NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft in NE swell. .TUE...NW winds 5 to 10 kt. Seas 4 to 6 ft in N to NE swell. .TUE NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 5 ft. .WED...SW winds 5 to 10 kt. Seas 3 ft in the morning, becoming 2 ft or less. .WED NIGHT...S winds 5 to 10 kt. Seas 2 ft or less. .THU...S to SW winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...SW to W winds less than 5 kt, shifting to E to SE late. Seas 2 ft or less. $$ GMZ021-102045- E Gulf from 22N to 25N E of 87W including Straits of Florida- 443 AM EDT Sun Sep 10 2017 ...HURRICANE WARNING... TODAY...HURRICANE CONDITIONS EXPECTED. Straits of Florida, NW winds 55 to 65 kt, diminishing to 40 to 45 kt in the afternoon. Seas 27 ft, subsiding to 19 ft in the afternoon. Elsewhere, NW to N winds 45 to 55 kt. Seas 19 to 20 ft. Scattered showers and isolated thunderstorms. .TONIGHT...Straits of Florida, NW winds 25 to 30 kt, diminishing to 15 to 20 kt late. Elsewhere, NW to N winds 45 to 50 kt, becoming NW 30 to 35 kt late. Seas 12 to 14 ft Straits of Florida, and 15 to 18 ft elsewhere. Scattered showers. .MON...NW winds 15 to 20 kt. Seas 8 to 11 ft in N swell. .MON NIGHT...NW winds 10 to 15 kt. Seas 6 to 9 ft in N swell. .TUE...SW to W winds 5 kt. Seas 4 to 6 ft in NW to N swell. .TUE NIGHT...S to SW winds less than 5 kt. Seas 3 to 4 ft in NW to N swell. .WED...S to SW winds 5 to 10 kt. Seas 3 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 ft or less. .THU...S to SW winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft or less. $$ GMZ023-102045- SW Gulf S of 22N W of 94W- 443 AM EDT Sun Sep 10 2017 .TODAY...N winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers. .MON...NW to N winds 10 to 15 kt. Seas 5 to 7 ft. Scattered showers. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NW to N winds 5 to 10 kt. Seas 4 to 6 ft in NE swell. .TUE NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft in NE swell. .WED...S to SW winds 5 to 10 kt. Seas 3 to 4 ft. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 ft. .THU...SE winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less. $$ GMZ025-102045- E Bay of Campeche including Campeche Bank- 443 AM EDT Sun Sep 10 2017 .TODAY...N winds 5 to 10 kt Within 60 nm of coast of Campeche, and N 10 to 15 kt elsewhere. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .MON...N winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NW winds 5 to 10 kt. Seas 3 to 5 ft. .TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. .WED...SW winds less than 5 kt. Seas 3 to 4 ft in N to NE swell in the morning, becoming 2 ft or less. .WED NIGHT...E winds less than 5 kt. Seas 2 ft or less. .THU...SE winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 ft or less. $$ Forecaster Christensen