000 FZNT24 KNHC 100257 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 1057 PM EDT Sat Sep 9 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. GMZ001-101500- Synopsis for the Gulf of Mexico 1057 PM EDT Sat Sep 9 2017 .SYNOPSIS...Major Hurricane Irma near 23.5N 81.0W along the coast of Cuba, 933 mb at 11 PM EDT moving NW at 5 kt into the Straits of Florida. Maximum sustained winds 105 kt gusts 130 kt. Irma will reach 24.7N 81.7W early Sun, then continue northward along the W coast of Florida, reaching 26.8N 82.4W Sun evening, 29.5N 83.4W Mon morning, then weaken to a tropical storm inland near 32.2N 85.0W Mon evening, before weakening further near 37.0N 88.5W by Tue evening and dissipating by mid week. $$ GMZ011-101500- NW Gulf including Stetson Bank- 1057 PM EDT Sat Sep 9 2017 .OVERNIGHT...NE winds 15 to 20 kt. Seas 5 ft. .SUN...NE winds 15 kt. Seas 5 to 6 ft. .SUN NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft. .MON...N to NE winds 15 kt. Seas 6 to 8 ft in E swell. .MON NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft in E swell. .TUE...NW to N winds 5 to 10 kt. Seas 4 to 6 ft in NE to E swell. .TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft. .WED...S to SW winds 5 to 10 kt. Seas 2 ft or less. .WED NIGHT...S winds 10 to 15 kt. Seas 2 ft or less. .THU...S winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less. $$ GMZ013-101500- N Central Gulf including Flower Garden Banks Marine Sanctuary- 1057 PM EDT Sat Sep 9 2017 .OVERNIGHT...NE winds 15 to 20 kt. Seas 6 to 9 ft. .SUN...NE winds 20 to 25 kt. Seas 7 to 10 ft in NE to E swell. .SUN NIGHT...N to NE winds 20 to 25 kt. Seas 8 to 13 ft in NE to E swell. Scattered showers and isolated thunderstorms. .MON...N winds 20 to 25 kt. Seas 8 to 13 ft in NE to E swell. .MON NIGHT...NW to N winds 15 to 20 kt. Seas 7 to 10 ft in NE swell. .TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 4 ft. .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. $$ GMZ015-101500- NE Gulf N of 25N E of 87W- 1057 PM EDT Sat Sep 9 2017 ...HURRICANE WARNING... .OVERNIGHT...TROPICAL STORM CONDITIONS. N to NE winds 35 to 45 kt S of 27N, and NE 20 to 25 kt elsewhere. Seas 11 to 12 ft. Scattered showers and isolated thunderstorms. .SUN...HURRICANE CONDITIONS EXPECTED. S of 27N, N winds 60 to 80 kt. Seas 16 to 21 ft. Elsewhere, N to NE winds 35 to 45 kt. Seas 11 to 13 ft. Scattered showers and isolated thunderstorms. VSBY 1 NM or less. .SUN NIGHT...TROPICAL STORM CONDITIONS EXPECTED. S of 27N, NW to N winds 60 to 70 kt, becoming NW 45 to 55 kt late. Elsewhere, N winds 45 to 60 kt. Seas 22 to 23 ft S of 27N, and 17 to 19 ft elsewhere. Numerous showers and isolated thunderstorms. .MON...TROPICAL STORM CONDITIONS EXPECTED. S of 27N, NW winds 30 to 35 kt. Elsewhere, NW winds 50 to 60 kt, diminishing to 35 to 40 kt in the afternoon. Seas 16 to 18 ft. Scattered showers and isolated thunderstorms. .MON NIGHT...W to NW winds 20 to 25 kt. Seas 9 to 14 ft in NW to N swell. .TUE...W winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. .WED...S to SW winds 5 to 10 kt. Seas 3 ft. .WED NIGHT...S to SW winds 5 to 10 kt. Seas 3 ft. .THU...SW winds 5 to 10 kt. Seas 3 ft in the morning, becoming 2 ft or less. .THU NIGHT...S winds 5 to 10 kt. Seas 2 ft or less. $$ GMZ017-101500- W Central Gulf from 22N to 26N W of 94W- 1057 PM EDT Sat Sep 9 2017 .OVERNIGHT...N to NE winds 15 to 20 kt. Seas 4 to 5 ft. Scattered showers and isolated thunderstorms. .SUN...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft. .MON...N winds 10 to 15 kt. Seas 6 to 9 ft in NE to E swell. .MON NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft in NE to E swell. .TUE...NW to N winds 5 to 10 kt. Seas 5 to 7 ft in NE to E 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 5 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 3 ft. .THU NIGHT...SE to S winds 10 to 15 kt. Seas 2 ft or less. $$ GMZ019-101500- Central Gulf from 22N to 26N between 87W and 94W- 1057 PM EDT Sat Sep 9 2017 .OVERNIGHT...N to NE winds 15 to 20 kt. Seas 6 to 9 ft. .SUN...N to NE winds 15 to 20 kt. Seas 7 to 10 ft in NE to E swell. .SUN NIGHT...N winds 15 to 20 kt. Seas 8 to 11 ft in NE to E swell. .MON...N winds 15 to 20 kt. Seas 8 to 11 ft in NE swell. .MON NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft in NE swell. .TUE...NW winds 5 to 10 kt. Seas 5 to 7 ft in N to NE swell. .TUE NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 5 ft. .WED...SW winds 5 to 10 kt. Seas 3 to 4 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 ft or less. .THU...S to SW winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...SW winds less than 5 kt, shifting to E late. Seas 2 ft or less. $$ GMZ021-101500- E Gulf from 22N to 25N E of 87W including Straits of Florida- 1057 PM EDT Sat Sep 9 2017 ...HURRICANE WARNING... .OVERNIGHT...HURRICANE CONDITIONS. Straits of Florida, NW to N winds 75 to 95 kt. Seas 33 ft. Elsewhere, N winds 35 to 40 kt. Seas 15 to 18 ft. Scattered showers and isolated thunderstorms. VSBY 1 NM or less. .SUN...TROPICAL STORM CONDITIONS EXPECTED. Straits of Florida, NW winds 50 to 60 kt, diminishing to 35 to 40 kt in the afternoon. Seas 26 ft, subsiding to 19 ft in the afternoon. Elsewhere, NW to N winds 45 to 50 kt. Seas 19 to 21 ft. Scattered showers and isolated thunderstorms. .SUN NIGHT...TROPICAL STORM CONDITIONS EXPECTED. Straits of Florida, NW winds 25 to 30 kt, becoming W to NW 15 to 20 kt late. Elsewhere, NW to N winds 40 to 45 kt, becoming NW 25 to 30 kt late. Seas 15 to 16 ft. Scattered showers. .MON...W to NW winds 15 to 20 kt. Seas 9 to 14 ft in N swell. .MON NIGHT...NW winds 10 to 15 kt. Seas 7 to 10 ft in N swell. .TUE...SW to W winds 5 kt. Seas 5 to 7 ft in NW to N swell. .TUE NIGHT...S to SW winds less than 5 kt. Seas 3 to 5 ft in NW to N swell. .WED...S to SW winds 5 to 10 kt. Seas 3 to 4 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 3 ft in the evening, becoming 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. $$ GMZ023-101500- SW Gulf S of 22N W of 94W- 1057 PM EDT Sat Sep 9 2017 .OVERNIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers. .SUN...N winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers. .MON...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Scattered showers. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NW to N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft in NE swell. .WED...S to SW winds 5 to 10 kt. Seas 3 to 5 ft. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less. $$ GMZ025-101500- E Bay of Campeche including Campeche Bank- 1057 PM EDT Sat Sep 9 2017 .OVERNIGHT...N to NE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .SUN...N winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .SUN NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .MON...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 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. .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