000 FZNT24 KNHC 071457 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 1057 AM EDT Thu Sep 7 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. GMZ001-080300- Synopsis for the Gulf of Mexico 1057 AM EDT Thu Sep 7 2017 .SYNOPSIS...Hurricane Katia is near 21.6N 94.6W 980 mb at 11 AM EDT and is stationary. Maximum sustained winds 70 kt gusts 85 kt. Katia is forecast to strengthen as it makes a slow SW drift, reaching 21.4N 95.0W this evening, 21.2N 95.5W Fri morning, then 20.7N 96.5W Fri evening before making landfall Fri night on the coast of Veracruz where it will weaken to a tropical storm inland near 19.9N 97.9W and dissipate on Sun. Major Hurricane Irma Hurricane Irma is forecast to enter the eastern Straits of Florida Sat afternoon, then turn northward across the Florida peninsula Sat night and Sun, bringing tropical storm force winds to eastern portions of the Straits of Florida and Florida Bay in the far SE Gulf late Sat into Sun. $$ GMZ011-080300- NW Gulf including Stetson Bank- 1057 AM EDT Thu Sep 7 2017 .TODAY...NE winds 20 to 25 kt. Seas 6 to 7 ft. Scattered showers and isolated thunderstorms. .TONIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. Scattered showers and isolated thunderstorms. .FRI...NE to E winds 15 to 20 kt. Seas 6 to 7 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 7 ft. Scattered showers and isolated thunderstorms. .SAT...NE winds 15 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 15 to 20 kt. Seas 5 to 6 ft. .SUN...NE winds 15 kt. Seas 5 to 6 ft. .SUN NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft. .MON...N to NE winds 15 kt. Seas 6 to 7 ft. .MON NIGHT...N to NE winds 10 to 15 kt. Seas 5 to 7 ft. $$ GMZ013-080300- N Central Gulf including Flower Garden Banks Marine Sanctuary- 1057 AM EDT Thu Sep 7 2017 .TODAY...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .TONIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .FRI...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...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...NE winds 20 to 25 kt. Seas 6 to 9 ft. .SUN...NE winds 20 to 25 kt. Seas 7 to 10 ft in S to SW swell. .SUN NIGHT...N to NE winds 20 to 25 kt. Seas 8 to 11 ft in NE swell. .MON...N winds 15 to 20 kt. Seas 7 to 10 ft in N to NE swell. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 6 to 8 ft in NE swell. $$ GMZ015-080300- NE Gulf N of 25N E of 87W- 1057 AM EDT Thu Sep 7 2017 .TODAY...NE winds 10 to 15 kt. Seas 3 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE winds 15 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 20 to 25 kt. Seas 8 to 9 ft. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...HURRICANE CONDITIONS POSSIBLE. .SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .MON...NW winds 20 to 30 kt. Seas 8 to 13 ft in N swell. .MON NIGHT...NW winds 20 to 25 kt. Seas 6 to 9 ft. $$ GMZ017-080300- W Central Gulf from 22N to 26N W of 94W- 1057 AM EDT Thu Sep 7 2017 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. W of 96W, N to NE winds 20 to 25 kt. Seas 8 ft. Elsewhere, NE to E winds 40 to 45 kt. Seas 11 ft. Scattered showers and isolated thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. N to NE winds 20 to 25 kt W of 96W, and NE to E 30 to 40 kt elsewhere. Seas 10 ft. Scattered showers and isolated thunderstorms. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 25 to 30 kt. Seas 9 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE to E winds 15 to 20 kt. Seas 7 to 8 ft. Scattered showers and isolated thunderstorms. .SAT...NE winds 15 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...N to NE winds 15 to 20 kt. Seas 4 to 6 ft. .SUN...N to NE winds 15 to 20 kt. Seas 4 to 6 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. $$ GMZ019-080300- Central Gulf from 22N to 26N between 87W and 94W- 1057 AM EDT Thu Sep 7 2017 .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 25 to 30 kt S of 24N, and E 15 to 20 kt elsewhere. Seas 5 ft. Scattered showers and isolated thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE to E winds 25 to 30 kt S of 24N, and NE to E 10 to 15 kt elsewhere. Seas 5 to 6 ft. Scattered showers and isolated thunderstorms. .FRI...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .SAT...NE winds 15 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 9 ft. .SUN...N to NE winds 15 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...N to NE winds 15 to 20 kt. Seas 7 to 10 ft in N to NE swell. .MON...N winds 10 to 15 kt. Seas 7 to 10 ft in N to NE swell. .MON NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. $$ GMZ021-080300- E Gulf from 22N to 25N E of 87W including Straits of Florida- 1057 AM EDT Thu Sep 7 2017 ...TROPICAL STORM WARNING... .TODAY...NE to E winds 5 to 10 kt. Seas 2 ft or less. .TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .FRI...NE winds 10 to 15 kt. Seas 2 ft or less, becoming 3 to 4 ft in the afternoon. Scattered showers and isolated thunderstorms. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N to NE winds 20 to 25 kt increasing to 30 to 40 kt E of 82W late. Seas 4 to 6 ft building to 5 to 8 ft. .SAT...HURRICANE CONDITIONS POSSIBLE. N winds 30 to 40 kt Straits of Florida, and N to NE 20 to 25 kt elsewhere. Seas 7 to 9 ft. .SAT NIGHT...HURRICANE CONDITIONS POSSIBLE. .SUN...HURRICANE CONDITIONS POSSIBLE. .SUN NIGHT...NW winds 20 to 25 kt. Seas 8 to 13 ft in NE swell. .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 8 ft in N swell. $$ GMZ023-080300- SW Gulf S of 22N W of 94W- 1057 AM EDT Thu Sep 7 2017 ...HURRICANE WARNING... .TODAY...TROPICAL STORM CONDITIONS. S of 21N W of 95W, W to NW winds 25 to 30 kt. Seas 11 ft. Elsewhere, W to NW winds 60 to 70 kt. Seas 16 to 17 ft. Scattered thunderstorms. .TONIGHT...HURRICANE CONDITIONS EXPECTED. S of 21N W of 95W, W to NW winds 25 to 30 kt,increasing to 35 to 40 kt late. Elsewhere, W to NW winds 60 to 70 kt. Seas 12 to 14 ft S of 21N W of 95W, and 18 to 19 ft elsewhere. Scattered showers and isolated thunderstorms. .FRI...HURRICANE CONDITIONS EXPECTED. S of 21N W of 95W, W winds 55 to 70 kt. Elsewhere, SW to W winds 60 to 70 kt, shifting to S in the afternoon. Seas 18 ft. Showers and isolated thunderstorms. .FRI NIGHT...HURRICANE CONDITIONS EXPECTED. S of 21N W of 95W, SW winds 55 to 70 kt. Seas 15 to 19 ft. Elsewhere, E to SE winds 60 to 65 kt, becoming E 35 to 40 kt late. Seas 15 ft, subsiding to 10 ft late. Scattered thunderstorms. .SAT...E winds 15 to 20 kt, becoming N to NE 5 to 10 kt in the afternoon. Seas 4 to 6 ft in N to NE swell. .SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...N winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft. .MON...NW to N winds 15 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft. $$ GMZ025-080300- E Bay of Campeche including Campeche Bank- 1057 AM EDT Thu Sep 7 2017 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. Within 60 nm of coast of Campeche, E to SE winds 10 to 15 kt, shifting to S 5 to 10 kt in the afternoon. Elsewhere, SE winds 45 to 50 kt, shifting to SE to S 35 to 40 kt in the afternoon. Seas 5 ft Within 60 nm of coast of Campeche, and 9 ft elsewhere. Scattered thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Campeche, NW winds 5 to 10 kt, shifting to N to NE late. Elsewhere, W to NW winds 25 to 30 kt, shifting to NE late. Seas 5 ft Within 60 nm of coast of Campeche, and 10 ft elsewhere. Scattered showers and isolated thunderstorms. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Campeche, E winds 5 to 10 kt, shifting to SE to S in the afternoon. Elsewhere, SE winds 20 to 25 kt. Seas 5 ft Within 60 nm of coast of Campeche, and 8 to 9 ft elsewhere. Scattered showers and isolated thunderstorms. .FRI NIGHT...N to NE winds 5 to 10 kt. Seas 4 to 6 ft in W swell. Scattered showers and isolated thunderstorms. .SAT...NE winds 5 to 10 kt. Seas 3 to 5 ft. .SAT NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 4 ft. .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...NW to N winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. $$ Forecaster Christensen