815 FZNT24 KNHC 210804 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 404 AM EDT Tue Aug 21 2018 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. GMZ001-212015- Synopsis for the Gulf of Mexico 404 AM EDT Tue Aug 21 2018 .SYNOPSIS...A surface trough will develop along the western Yucatan Peninsula during the late afternoons, then drift westward across the southwest gulf waters during the overnight hours accompanied by a fresh east to southeast wind shift with the trough dissipating along 96W during the late mornings. An east to west ridge will extend across the gulf waters between 26N and 27N with a surface high developing along the ridge near 27N93W today. The high will meander over the northwest gulf through late Thu, as a weak trough moves southeast into the northeastern gulf waters where it will stall on Thu, and then drift west and dissipate on Fri, with anticyclonic flow across the entire gulf waters late in the week. $$ GMZ011-212015- NW Gulf including Stetson Bank- 404 AM EDT Tue Aug 21 2018 .TODAY...S winds 5 to 10 kt. Seas 3 ft or less. .TONIGHT...SE to S winds 5 to 10 kt. Seas 3 ft or less. .WED...SW winds 5 to 10 kt, shifting to N late in the afternoon. Seas 3 ft or less. .WED NIGHT...S winds 5 to 10 kt. Seas 3 ft or less. .THU...SW winds 5 to 10 kt, shifting to N to NE in the afternoon. Seas 3 ft or less. .THU NIGHT...SE winds 5 to 10 kt. Seas 3 ft or less. .FRI...SE to S winds 5 to 10 kt. Seas 3 ft or less. .FRI NIGHT...SE winds 5 to 10 kt. Seas 3 ft or less. .SAT...SE winds 5 to 10 kt. Seas 3 ft or less. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ013-212015- N Central Gulf including Flower Garden Banks Marine Sanctuary- 404 AM EDT Tue Aug 21 2018 .TODAY...SW to W winds 5 to 10 kt. Seas 3 ft or less. .TONIGHT...W to NW winds 5 to 10 kt, shifting to S to SW late. Seas 3 ft or less. .WED...NW winds 5 to 10 kt. Seas 3 ft or less. .WED NIGHT...W to NW winds less than 5 kt. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .THU...NW winds 5 kt. Seas 3 ft or less. .THU NIGHT...N to NE winds 5 kt, shifting to E to SE less than 5 kt late. Seas 3 ft or less. .FRI...E to SE winds less than 5 kt. Seas 3 ft or less. .FRI NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .SAT...SE winds 5 to 10 kt. Seas 3 ft or less. .SAT NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft or less. $$ GMZ015-212015- NE Gulf N of 25N E of 87W- 404 AM EDT Tue Aug 21 2018 .TODAY...SE winds 5 to 10 kt. Seas 3 ft or less. .TONIGHT...S winds less than 5 kt, shifting to N late in the evening, then, shifting to S late. Seas 3 ft or less. .WED...SW winds 5 to 10 kt, shifting to NW in the late morning and afternoon. Seas 3 ft or less. .WED NIGHT...W to NW winds 5 to 10 kt. Seas 3 ft or less. .THU...NW winds less than 5 kt. Seas 3 ft or less. .THU NIGHT...NW to N winds less than 5 kt, shifting to SE late. Seas 3 ft or less. .FRI...SE winds less than 5 kt. Seas 3 ft or less. .FRI NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .SAT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .SAT NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft or less. $$ GMZ017-212015- W Central Gulf from 22N to 26N W of 94W- 404 AM EDT Tue Aug 21 2018 .TODAY...SE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .TONIGHT...SE winds 5 to 10 kt. Seas 3 ft or less. .WED...E to SE winds 5 to 10 kt. Seas 3 ft or less. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 ft or less. .THU...E to SE winds 5 to 10 kt. Seas 3 ft or less. .THU NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .FRI...SE winds 5 to 10 kt. Seas 3 ft or less. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. .SAT...SE winds 10 to 15 kt. Seas 3 ft or less. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ019-212015- Central Gulf from 22N to 26N between 87W and 94W- 404 AM EDT Tue Aug 21 2018 .TODAY...E winds 10 to 15 kt. Seas 2 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .WED...NE winds 5 to 10 kt. Seas 3 ft or less. .WED NIGHT...E winds 5 to 10 kt. Seas 3 ft or less. .THU...NE winds 5 to 10 kt. Seas 3 ft or less. .THU NIGHT...E winds 5 to 10 kt. Seas 3 ft or less. .FRI...E to SE winds 5 to 10 kt. Seas 3 ft or less. .FRI NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .SAT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ021-212015- E Gulf from 22N to 25N E of 87W including Straits of Florida- 404 AM EDT Tue Aug 21 2018 .TODAY...E winds 5 to 10 kt. Seas 3 ft or less. .TONIGHT...E winds 5 to 10 kt. Seas 3 ft or less. .WED...NE to E winds 5 to 10 kt. Seas 3 ft or less. .WED NIGHT...NE to E winds 5 to 10 kt. Seas 3 ft or less. .THU...NE to E winds 5 to 10 kt. Seas 3 ft or less. .THU NIGHT...NE to E winds 5 to 10 kt. Seas 3 ft or less. .FRI...E winds 5 to 10 kt. Seas 3 ft or less. .FRI NIGHT...E winds 5 to 10 kt. Seas 3 ft or less. .SAT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .SAT NIGHT...E winds 5 to 10 kt. Seas 3 ft or less. $$ GMZ023-212015- SW Gulf S of 22N W of 94W- 404 AM EDT Tue Aug 21 2018 .TODAY...E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .TONIGHT...E winds 5 to 10 kt. Seas 3 ft or less. .WED...N to NE winds 5 to 10 kt. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .WED NIGHT...NE to E winds 5 to 10 kt. Seas 3 ft or less. .THU...N to NE winds less than 5 kt. Seas 3 ft or less. .THU NIGHT...E winds 5 to 10 kt. Seas 3 ft or less. .FRI...E to SE winds 5 to 10 kt. Seas 3 ft or less. .FRI NIGHT...E winds 5 to 10 kt. Seas 3 ft or less. .SAT...E to SE winds 5 to 10 kt. Seas 3 ft or less. .SAT NIGHT...E winds 5 to 10 kt. Seas 3 ft or less. $$ GMZ025-212015- E Bay of Campeche including Campeche Bank- 404 AM EDT Tue Aug 21 2018 .TODAY...E winds 10 to 15 kt. Seas 2 to 4 ft. .TONIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. .THU...E winds 5 to 10 kt. Seas 3 ft or less. .THU NIGHT...NE to E winds 5 to 10 kt. Seas 3 ft or less. .FRI...E to SE winds 5 to 10 kt. Seas 3 ft or less. .FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. .SAT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. $$ Forecaster Nelson