000 FZNT24 KNHC 060927 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 527 AM EDT Wed Sep 6 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. GMZ001-062130- Synopsis for the Gulf of Mexico 527 AM EDT Wed Sep 6 2017 .SYNOPSIS...Newly upgraded Tropical Storm Katie near 22.1N 96.3W AT 0900Z moving E-SE at 2 kt. Maximum sustained winds 35 kt gusts 45 kt. Katia is forecast to gradually strengthen during the next few days, reaching near 21.6N 95.6W tonight, near 21.1N 95.6W Wed night as a 60 kt Tropical Storm, near 20.4N 96.7W Thu night, and then move SW and inland to near 19.2N 98.7W Fri night where it will gradually diminish. Hurricane Irma is expected to move between Cuba and the Bahamas Sat and through the Straits of Florida late Sat evening and night and possibly across or near portions of the SE and E Gulf Sun, where Hurricane Conditions are Possible. $$ GMZ011-062130- NW Gulf including Stetson Bank- 527 AM EDT Wed Sep 6 2017 .TODAY...N to NE winds 5 to 10 kt,increasing to 15 to 20 kt in the afternoon. Seas 2 ft or less, building to 3 to 5 ft in the afternoon. Scattered showers and isolated thunderstorms. .TONIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. Scattered showers and isolated thunderstorms. .THU...NE winds 20 to 25 kt. Seas 7 ft. Scattered showers and isolated thunderstorms. .THU NIGHT...NE winds 15 to 20 kt. Seas 6 to 7 ft. Scattered showers and isolated thunderstorms. .FRI...NE to E winds 20 to 25 kt. Seas 7 ft. .FRI NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 7 ft. .SAT...NE winds 15 to 20 kt. Seas 5 to 6 ft. .SAT NIGHT...NE winds 15 to 20 kt. Seas 5 ft. .SUN...NE winds 15 to 20 kt. Seas 5 ft. $$ GMZ013-062130- N Central Gulf including Flower Garden Banks Marine Sanctuary- 527 AM EDT Wed Sep 6 2017 .TODAY...W of 90W, NE winds 5 to 10 kt,increasing to 15 to 20 kt in the afternoon. Elsewhere, NE to E winds 5 to 10 kt, shifting to NW in the afternoon. Seas 2 ft or less. Scattered showers and isolated thunderstorms. .TONIGHT...N to NE winds 15 to 20 kt. Seas 4 to 5 ft W of 90W, and 2 ft or less elsewhere. .THU...NE to E winds 15 to 20 kt. Seas 5 to 6 ft. Scattered showers and isolated thunderstorms. .THU NIGHT...NE to E winds 15 to 20 kt. Seas 6 ft. Scattered showers and isolated thunderstorms. .FRI...NE to E winds 20 to 25 kt. Seas 6 ft. .FRI NIGHT...NE winds 15 to 20 kt. Seas 5 ft. .SAT...NE winds 15 to 20 kt. Seas 4 to 5 ft W of 90W, and 5 to 7 ft elsewhere. .SAT NIGHT...NE winds 20 to 25 kt. Seas 5 to 6 ft W of 90W, and 8 ft elsewhere. .SUN...NE winds 20 to 25 kt. Seas 7 ft W of 90W, and 9 to 10 ft elsewhere. $$ GMZ015-062130- NE Gulf N of 25N E of 87W- 527 AM EDT Wed Sep 6 2017 .TODAY...E winds 5 to 10 kt, shifting to SE to S in the afternoon. Seas 2 ft or less. Scattered showers and isolated thunderstorms. .TONIGHT...S of 27N, N to NE winds 5 to 10 kt. Elsewhere, NW winds 5 to 10 kt, becoming N 15 to 20 kt late. Seas 2 ft or less. Scattered showers and isolated thunderstorms. .THU...NE to E winds 5 to 10 kt S of 27N, and NE 15 to 20 kt elsewhere. Seas 3 to 4 ft. .THU NIGHT...NE winds 15 to 20 kt. Seas 4 ft. .FRI...NE winds 15 to 20 kt. Seas 4 ft. .FRI NIGHT...NE winds 20 to 25 kt. Seas 4 to 7 ft. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...HURRICANE CONDITIONS POSSIBLE. .SUN...HURRICANE CONDITIONS POSSIBLE. $$ GMZ017-062130- W Central Gulf from 22N to 26N W of 94W- 527 AM EDT Wed Sep 6 2017 ...TROPICAL STORM WARNING TONIGHT AND THU... .TODAY...TROPICAL STORM CONDITIONS EXPECTED. NE winds 30 to 35 kt. Seas 7 to 8 ft W of 96W, and 5 to 7 ft elsewhere. Scattered showers and isolated thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. NE winds 40 to 45 kt. Seas 8 ft. Scattered showers and isolated thunderstorms. .THU...TROPICAL STORM CONDITIONS EXPECTED. N to NE winds 25 to 30 kt W of 96W, and NE to E 35 to 40 kt elsewhere. Seas 8 ft. Scattered showers and isolated thunderstorms. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 25 to 30 kt. Seas 8 to 9 ft. Scattered showers and isolated thunderstorms. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to 20 kt. Seas 7 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...NE winds 15 to 20 kt. Seas 5 to 6 ft. .SAT NIGHT...NE winds 15 to 20 kt. Seas 5 ft. .SUN...N to NE winds 15 to 20 kt. Seas 5 ft. $$ GMZ019-062130- Central Gulf from 22N to 26N between 87W and 94W- 527 AM EDT Wed Sep 6 2017 .TODAY...E to SE winds 10 to 15 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. Scattered showers and isolated thunderstorms. .TONIGHT...NE to E winds 10 to 15 kt. Seas 3 ft. Scattered showers and isolated thunderstorms. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 15 to 20 kt. Seas 4 ft. Scattered showers and isolated thunderstorms. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE to E winds 10 to 15 kt. Seas 4 to 5 ft. Scattered showers and isolated thunderstorms. .FRI...NE to E winds 10 to 15 kt. Seas 5 ft. .FRI NIGHT...NE winds 15 to 20 kt. Seas 5 ft. .SAT...NE winds 15 to 20 kt. Seas 5 ft. .SAT NIGHT...N to NE winds 20 to 25 kt. Seas 6 to 8 ft. .SUN...N to NE winds 20 to 25 kt. Seas 8 to 9 ft. $$ GMZ021-062130- E Gulf from 22N to 25N E of 87W including Straits of Florida- 527 AM EDT Wed Sep 6 2017 .TODAY...E to SE winds 5 to 10 kt. Seas 2 ft or less. .TONIGHT...N to NE winds 5 to 10 kt. Seas 2 ft or less. Scattered showers and isolated thunderstorms. .THU...NE to E winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft late. Scattered showers and isolated thunderstorms. .FRI...NE winds 15 to 20 kt. Seas 4 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...HURRICANE CONDITIONS POSSIBLE. .SAT NIGHT...HURRICANE CONDITIONS POSSIBLE. .SUN...HURRICANE CONDITIONS POSSIBLE. $$ GMZ023-062130- SW Gulf S of 22N W of 94W- 527 AM EDT Wed Sep 6 2017 ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS EXPECTED. NW winds 20 to 25 kt S of 21N W of 95W, and SW to W 30 to 35 kt elsewhere. S of 21N W of 95W, seas 3 ft, building to 5 ft in the afternoon. Elsewhere, seas 5 ft, building to 8 ft in the afternoon. Scattered showers and isolated thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. S of 21N W of 95W, NW winds 25 to 30 kt. Seas 7 to 8 ft. Elsewhere, W to NW winds 40 to 50 kt. Seas 10 to 11 ft. Scattered showers and isolated thunderstorms. .THU...TROPICAL STORM CONDITIONS EXPECTED. S of 21N W of 95W, W to NW winds 35 to 45 kt. Seas 8 to 9 ft. Elsewhere, W to NW winds 45 to 50 kt. Seas 13 to 14 ft. Scattered thunderstorms. .THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. W to NW winds 45 to 55 kt. Seas 10 to 11 ft S of 21N W of 95W, and 14 ft elsewhere. Scattered showers and isolated thunderstorms. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. W to NW winds 50 to 55 kt. Seas 14 to 15 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...N winds 10 to 15 kt. Seas 4 to 5 ft. .SUN...N winds 15 to 20 kt. Seas 4 to 5 ft. $$ GMZ025-062130- E Bay of Campeche including Campeche Bank- 527 AM EDT Wed Sep 6 2017 .TODAY...SE to S winds 10 to 15 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. Scattered showers and isolated thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NW to N winds 10 to 15 kt, shifting to NE late. Within 60 nm of coast of Campeche, seas 2 ft or less. Elsewhere, seas 3 ft, building to 5 ft late. Scattered showers and isolated thunderstorms. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 10 to 15 kt, shifting to S 15 to 20 kt in the afternoon. Seas 3 to 4 ft Within 60 nm of coast of Campeche, and 6 ft elsewhere. Scattered showers and isolated thunderstorms. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NW to N winds 15 to 20 kt, shifting to NE 10 to 15 kt late. Seas 4 ft Within 60 nm of coast of Campeche, and 7 ft elsewhere. Scattered showers and isolated thunderstorms. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Campeche, E winds 10 to 15 kt, shifting to S 5 to 10 kt in the afternoon. Elsewhere, E to SE winds 15 to 20 kt. Seas 6 ft. .FRI NIGHT...N winds 10 to 15 kt Within 60 nm of coast of Campeche, and N to NE 15 to 20 kt elsewhere. Seas 6 ft. .SAT...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...N to NE winds 10 to 15 kt. Seas 4 ft. .SUN...N winds 10 to 15 kt. Seas 4 ft. $$ Forecaster Stripling