000 FZNT24 KNHC 081504 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 1104 AM EDT Fri Sep 8 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. GMZ001-090315- Synopsis for the Gulf of Mexico 1104 AM EDT Fri Sep 8 2017 .SYNOPSIS...Hurricane Katia centered near 21.0N 95.8W 975 mb at 11 AM EDT moving WSW at 4 kt. Maximum sustained winds 85 kt gusts 105 kt. Katia is forecast to move to near 20.6N 96.4W this evening, with maximum sustained wind of 85 kt gusts to 105 kt, and inland near 19.7N 97.4W by early on Tuesday, with maximum sustained winds 45 kt gusts to 55 kt. Katia will gradually weaken as it moves further inland through Tuesday night. Major Hurricane Irma is forecast to enter the eastern Straits of Florida Saturday afternoon, then turn northward across the Florida peninsula Saturday night and Sunday, bringing tropical storm force and possibly hurricane force winds to eastern portions of the Straits of Florida and Florida Bay in the far SE Gulf late Sat into Sun. $$ GMZ011-090315- NW Gulf including Stetson Bank- 1104 AM EDT Fri Sep 8 2017 .TODAY...NE to E winds 15 to 20 kt. Seas 7 to 8 ft. Scattered showers and isolated thunderstorms. .TONIGHT...NE to E winds 15 to 20 kt. Seas 6 to 8 ft. Scattered showers and isolated thunderstorms. .SAT...NE winds 15 to 20 kt. Seas 6 to 7 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...NE winds 15 to 20 kt. Seas 5 to 6 ft. Scattered showers and isolated thunderstorms. .SUN...NE winds 15 kt. Seas 5 to 6 ft. .SUN NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 6 ft. .MON...N to NE winds 15 kt. Seas 5 to 7 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NW to N winds 5 to 10 kt. Seas 3 to 5 ft. .TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft in the evening, subsiding to 2 ft or less. $$ GMZ013-090315- N Central Gulf including Flower Garden Banks Marine Sanctuary- 1104 AM EDT Fri Sep 8 2017 .TODAY...NE to E winds 15 to 20 kt. Seas 6 to 8 ft. Scattered showers and isolated thunderstorms. .TONIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. Scattered showers and isolated thunderstorms. .SAT...NE winds 15 to 20 kt. Seas 6 to 8 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...NE winds 20 to 25 kt. Seas 6 to 9 ft. Scattered showers and isolated thunderstorms. .SUN...N to NE winds 20 to 25 kt. Seas 7 to 10 ft. .SUN NIGHT...N to NE winds 20 to 25 kt. Seas 7 to 10 ft. .MON...N winds 15 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NW winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...W to NW winds 5 to 10 kt. Seas 2 to 3 ft. $$ GMZ015-090315- NE Gulf N of 25N E of 87W- 1104 AM EDT Fri Sep 8 2017 ...TROPICAL STORM WARNING... .TODAY...NE winds 15 to 20 kt. Seas 5 ft. .TONIGHT...NE winds 15 to 20 kt. Seas 5 to 6 ft. Scattered showers and isolated thunderstorms. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 20 to 25 kt. Seas 7 to 8 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...TROPICAL STORM CONDITIONS EXPECTED. S of 27N, N to NE winds 25 to 30 kt, increasing to 35 to 40 kt late. Elsewhere, NE winds 25 to 30 kt. Seas 10 to 11 ft. Scattered showers and isolated thunderstorms. .SUN...HURRICANE CONDITIONS POSSIBLE. S of 27N, N winds 40 to 50 kt. Elsewhere, NE winds 25 to 30 kt, becoming N to NE 35 to 40 kt in the afternoon. Seas 12 to 13 ft. .SUN NIGHT...HURRICANE CONDITIONS POSSIBLE. .MON...HURRICANE CONDITIONS POSSIBLE. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .TUE...SW to W winds 15 to 20 kt. Seas 5 to 6 ft. .TUE NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 4 ft. $$ GMZ017-090315- W Central Gulf from 22N to 26N W of 94W- 1104 AM EDT Fri Sep 8 2017 .TODAY...NE to E winds 15 to 20 kt. Seas 8 to 11 ft. Scattered showers and isolated thunderstorms. .TONIGHT...NE to E winds 10 to 15 kt. Seas 7 to 10 ft in mixed NE and SW swell. Scattered showers and isolated thunderstorms. .SAT...NE winds 15 to 20 kt. Seas 5 to 7 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...N to NE winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .SUN...N to NE winds 15 to 20 kt. Seas 4 to 5 ft. .SUN NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft. .MON...N winds 10 to 15 kt. Seas 5 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 4 to 6 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. $$ GMZ019-090315- Central Gulf from 22N to 26N between 87W and 94W- 1104 AM EDT Fri Sep 8 2017 .TODAY...NE to E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 15 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 9 ft. .SUN...N to NE winds 15 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 9 ft. .MON...N winds 10 to 15 kt. Seas 6 to 9 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NW winds 5 to 10 kt. Seas 4 to 6 ft. .TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. $$ GMZ021-090315- E Gulf from 22N to 25N E of 87W including Straits of Florida- 1104 AM EDT Fri Sep 8 2017 ...HURRICANE WARNING... .TODAY...NE winds 10 to 15 kt. Seas 4 to 5 ft. Scattered showers and isolated thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N to NE winds 20 to 25 kt. Seas 5 to 6 ft. Scattered showers and isolated thunderstorms. .SAT...TROPICAL STORM CONDITIONS EXPECTED. Straits of Florida, N to NE winds 40 to 45 kt, becoming N 55 to 65 kt in the afternoon. Elsewhere, N to NE winds 20 to 25 kt. Seas 7 to 9 ft. .SAT NIGHT...HURRICANE CONDITIONS EXPECTED. Straits of Florida, NW to N winds 85 to 105 kt. Seas 17 to 19 ft. Elsewhere, N winds 30 to 35 kt. Seas 10 to 12 ft. Scattered showers and isolated thunderstorms. VSBY 1 NM or less. .SUN...HURRICANE CONDITIONS POSSIBLE. Straits of Florida, NW to N winds 50 to 55 kt, becoming NW 30 to 35 kt in the afternoon. Seas 15 to 19 ft, subsiding to 10 to 14 ft in the afternoon. Elsewhere, NW to N winds 35 to 40 kt. Seas 12 to 13 ft. .SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .MON...NW winds 15 to 20 kt. Seas 8 to 10 ft. .MON NIGHT...NW winds 15 to 20 kt. Seas 6 to 7 ft. .TUE...SW to W winds 5 to 10 kt. Seas 5 ft. .TUE NIGHT...S to SW winds 5 kt. Seas 3 to 4 ft. $$ GMZ023-090315- SW Gulf S of 22N W of 94W- 1104 AM EDT Fri Sep 8 2017 ...HURRICANE WARNING... .TODAY...HURRICANE CONDITIONS. SW to W winds 65 to 75 kt. Seas 14 to 19 ft S of 21N W of 95W, and 16 to 20 ft elsewhere. Numerous showers and thunderstorms. VSBY 1 NM or less. .TONIGHT...HURRICANE CONDITIONS EXPECTED. S of 21N W of 95W, SW to W winds 65 to 75 kt, shifting to S to SW 60 to 70 kt late. Seas 19 to 22 ft. Elsewhere, SE winds 55 to 60 kt, becoming E 30 to 35 kt late. Seas 15 to 18 ft, subsiding to 9 to 12 ft late. Numerous showers and thunderstorms. VSBY 1 NM or less. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. S of 21N W of 95W, E winds 35 to 40 kt, becoming N 5 to 10 kt in the afternoon. Seas 10 to 14 ft, subsiding to 4 to 6 ft in the afternoon. Elsewhere, NE winds 15 to 20 kt. Seas 6 to 8 ft, subsiding to 4 to 5 ft in the afternoon. Numerous showers and thunderstorms. .SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .SUN...N winds 10 to 15 kt. Seas 4 to 5 ft. .SUN NIGHT...N winds 15 to 20 kt. Seas 4 to 5 ft. .MON...NW to N winds 15 to 20 kt. Seas 5 to 6 ft. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...NW winds 10 to 15 kt. Seas 5 to 6 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. $$ GMZ025-090315- E Bay of Campeche including Campeche Bank- 1104 AM EDT Fri Sep 8 2017 .TODAY...Within 60 nm of coast of Campeche, E to SE winds 5 to 10 kt, shifting to SW towards evening. Elsewhere, SE to S winds 10 to 15 kt. Seas 5 to 7 ft. Scattered showers and isolated thunderstorms. .TONIGHT...N to NE winds 5 to 10 kt. Seas 4 to 6 ft. .SAT...N to NE winds 5 to 10 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds 10 to 15 kt. Seas 2 ft or less Within 60 nm of coast of Campeche, and 3 to 5 ft elsewhere. Scattered showers and isolated thunderstorms. .SUN...N winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...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. $$ Forecaster Aguirre