000 FZNT24 KNHC 172045 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 445 PM EDT Thu Sep 17 2020 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. GMZ001-180845- Synopsis for the Gulf of Mexico 445 PM EDT Thu Sep 17 2020 .SYNOPSIS...An area of low pressure over the southwestern Gulf will meander for the next day or so before moving slowly northward to northeastward on Fri and Sat, with potential for it to become a tropical depression or tropical storm within the next day or so. A Gale Warning is in effect for some sections of the central and western Gulf with this system. A weak front will move into the northern Gulf on Fri and reach the eastern Gulf by the weekend and become stationary. The gradient between the front and the area of low pressure is expected to lead to fresh to strong northeast to east winds and building seas over most of the central and western Gulf into early next week. $$ GMZ011-180845- NW Gulf including Stetson Bank- 445 PM EDT Thu Sep 17 2020 ...GALE CONDITIONS POSSIBLE S OF 27N E OF 95W SAT NIGHT THROUGH MON NIGHT... .TONIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .FRI...NE winds 15 to 20 kt. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...NE to E winds 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .SAT...NE winds 20 to 25 kt. Seas 6 to 9 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...S of 27N E of 95W, NE winds 25 to 35 kt. Seas 9 to 13 ft. Elsewhere, NE winds 20 to 25 kt. Seas 8 to 10 ft. .SUN...S of 27N E of 94W, NE winds 30 to 40 kt. Seas 10 to 15 ft. Elsewhere, NE to E winds 20 to 30 kt. Seas 8 to 10 ft. .SUN NIGHT...S of 27N E of 95W, NE winds 35 to 45 kt. Seas 10 to 18 ft. Elsewhere, NE to E winds 20 to 30 kt. Seas 8 to 11 ft. .MON...S of 27N E of 95W, NE winds 35 to 45 kt. Seas 10 to 18 ft. Elsewhere, NE to E winds 20 to 30 kt. Seas 8 to 12 ft. .MON NIGHT...S of 27N E of 95W, NE winds 35 to 45 kt. Seas 10 to 18 ft. Elsewhere, NE to E winds 20 to 30 kt. Seas 8 to 12 ft. .TUE...S of 27N E of 95W, E to SE winds 25 to 35 kt early, becoming SE 20 to 25 kt in the afternoon. Seas 9 to 13 ft, subsiding to 8 to 11 ft in the afternoon. .TUE NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft in E swell. $$ GMZ013-180845- N Central Gulf including Flower Garden Banks Marine Sanctuary- 445 PM EDT Thu Sep 17 2020 ...GALE WARNING S OF 28N... .TONIGHT...W of 90W, NE winds 10 to 15 kt. Elsewhere, W to NW winds 10 kt in the evening, becoming variable less than 5 kt. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .FRI...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. Numerous showers and scattered thunderstorms. .FRI NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. Scattered thunderstorms. .SAT...W of 90W, E winds 20 to 25 kt, except S of 28N increasing to 25 to 35 kt in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 6 to 8 ft in NE swell, building to 9 to 13 ft in NE to E swell in the afternoon. Numerous showers and scattered thunderstorms. .SAT NIGHT...S of 28N, E winds 30 to 40 kt. Seas 10 to 16 ft. N of 28N, NE to E winds 20 to 25 kt, except 25 to 30 kt W of 92W. Seas 8 to 12 ft. .SUN...S of 28N W of 92W, NE to E winds 35 to 45 kt. Seas 10 to 18 ft. Elsewhere, NE to E winds 20 to 25 kt, except 25 to 30 kt W of 92W. Seas 9 to 14 ft. .SUN NIGHT...S of 27N W of 93W, NE to E winds 35 to 45 kt. Seas 10 to 18 ft. Elsewhere, NE to E winds 20 to 25 kt, except 25 to 30 kt W of 92W. Seas 9 to 14 ft. .MON...E winds 20 to 25 kt, except E to SE 30 to 40 kt S of 27N W of 93W early, diminishing to 20 to 30 kt. Seas 8 to 11 ft, except 10 to 15 ft S of 27N W of 93W early, subsiding to 7 to 10 ft in NE to E swell. .MON NIGHT...E winds 20 to 25 kt. Seas 6 to 9 ft. .TUE...E to SE winds 20 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...SE winds 15 to 20 kt. Seas 6 to 8 ft. $$ GMZ015-180845- NE Gulf N of 25N E of 87W- 445 PM EDT Thu Sep 17 2020 .TONIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...W winds 10 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...NW to N winds 10 kt, shifting to NE late. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .SAT...Variable winds less than 5 kt S of 27N, and NE to E 10 to 15 kt elsewhere. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .SAT NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. .UN...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...NE to E winds 20 to 25 kt. Seas 6 to 8 ft. .MON...NE to E winds 20 to 25 kt. Seas 6 to 9 ft. .MON NIGHT...NE to E winds 20 to 25 kt. Seas 6 to 9 ft. .TUE...E winds 15 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft. $$ GMZ017-180845- W Central Gulf from 22N to 26N W of 94W- 445 PM EDT Thu Sep 17 2020 ...GALE WARNING S OF 25N E OF 95W... .TONIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .FRI...S of 25N E of 95W N to NE winds 30 to 35 kt. Seas 8 to 12 ft. Elsewhere, NW to N winds 20 to 25 kt. Seas 6 to 8 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...N to NE winds 20 to 25 kt. Seas 6 to 9 ft. Scattered showers and thunderstorms. .SAT...N winds 20 to 25 kt. Seas 6 to 9 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...N winds 20 to 25 kt. Seas 6 to 9 ft in NE swell. .SUN...NW winds 20 to 25 kt. Seas 7 to 10 ft in NE swell. .SUN NIGHT...N winds 15 to 20 kt, shifting to SW to W late. Seas 7 to 10 ft in N to NE swell. .MON...SW to W winds 15 to 20 kt. Seas 7 to 10 ft in N to NE swell. .MON NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 9 ft in NE to E swell. .TUE...SW to W winds 15 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft in NE to E swell. $$ GMZ019-180845- Central Gulf from 22N to 26N between 87W and 94W- 445 PM EDT Thu Sep 17 2020 ...GALE WARNING N OF 24N W OF 91W... .TONIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .FRI...SE to S winds 15 to 20 kt. Seas 2 to 4 ft. Scattered thunderstorms. .FRI NIGHT...N of 24N W of 92W, E to SE winds 25 to 35 kt. Seas 9 to 13 ft. Elsewhere, SE winds 15 to 20 kt except E to SE 25 to 30 kt W of 92W. Seas 4 to 6 ft, except 8 to 11 ft W of 92W. Scattered to numerous showers and thunderstorms. .SAT...N of 24N W of 91W, SE to S winds 20 to 25 kt, except 30 to 40 kt N of 24N W of 92W. Seas 6 to 8 ft. except 9 to 14 ft N of 24N W of 92W. Scattered to numerous showers and thunderstorms. .SAT NIGHT...SE winds 15 to 20 kt, except 25 to 35 kt N of 25N W of 92W. Seas 6 to 8 ft, except 9 to 13 ft N of 25N W of 92W. .SUN...SE winds 15 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft. .MON...SE winds 15 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. .TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft in NE swell. .TUE NIGHT...E to SE winds 10 kt. Seas 4 to 6 ft in NE swell. $$ GMZ021-180845- E Gulf from 22N to 25N E of 87W including Straits of Florida- 445 PM EDT Thu Sep 17 2020 .TONIGHT...S winds 10 kt. Seas 2 to 4 ft. Isolated showers and thunderstorms. .FRI...S winds 10 kt. Seas 3 ft or less. Isolated showers and thunderstorms. .FRI NIGHT...E winds 10 kt. Seas 3 ft or less. Isolated showers and thunderstorms. .SAT...SE winds 10 kt. Seas 3 ft or less. Isolated showers and thunderstorms. .SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. .SUN...NE to E winds 10 kt. Seas 3 ft or less. .SUN NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft. .MON...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 15 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. $$ GMZ023-180845- SW Gulf S of 22N W of 94W- 445 PM EDT Thu Sep 17 2020 .TONIGHT...W to NW winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .FRI...W to NW winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...NW winds 15 to 20 kt. Seas 6 to 8 ft. Scattered showers and isolated thunderstorms. .SAT...NW winds 20 to 25 kt. Seas 6 to 8 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...NW winds 20 to 25 kt. Seas 6 to 8 ft. .SUN...NW winds 20 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...NW winds 15 to 20 kt. Seas 6 to 8 ft. .MON...W to NW winds 10 to 15 kt. Seas 6 to 8 ft in N to NE swell. .MON NIGHT...W winds 10 kt. Seas 4 to 6 ft in N to NE swell. .TUE...W winds 10 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt, shifting to SE to S late. Seas 2 to 4 ft. $$ GMZ025-180845- E Bay of Campeche including Campeche Bank- 445 PM EDT Thu Sep 17 2020 .TONIGHT...NW to N winds 10 kt, shifting to SE to S late. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .FRI...S winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated thunderstorms. .FRI NIGHT...SW to W winds 10 kt, shifting to S late. Seas 2 to 4 ft. Scattered showers and isolated thunderstorms. .SAT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .SAT NIGHT...S to SW winds 10 to 15 kt. Seas 2 to 4 ft. .SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 10 kt, shifting to S to SW late. Seas 3 to 5 ft. .MON...SW winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N winds 10 kt, shifting to SE to S late. Seas 3 to 4 ft. .TUE...S winds 10 kt, shifting to W in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...N winds 10 kt, shifting to E late. Seas 2 to 4 ft. $$ Forecaster Aguirre