000 FZNT24 KNHC 200839 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 439 AM EDT Sun Aug 20 2023 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. GMZ001-202045- Synopsis for the Gulf of Mexico 439 AM EDT Sun Aug 20 2023 .SYNOPSIS...A surface ridge over the Gulf waters will support mostly gentle to moderate winds and slight seas across the basin through tonight. Looking ahead, an area of disturbed weather located over the Straits of Florida and the southern Florida peninsula will move into the Gulf of Mexico later today, where a broad area of low pressure is expected to form early this week. Some slow development of this system could occur thereafter as it moves westward at about 15 to 20 kt, and a tropical depression could form as it approaches the western Gulf of Mexico coastline by Tuesday. This system has a low chance of development in 48 hours and a medium chance in 7 days. $$ GMZ040-202045- NW Gulf including Stetson Bank- 439 AM EDT Sun Aug 20 2023 .TODAY...Variable winds less than 5 kt, becoming NE 10 kt in the afternoon. Seas 3 ft or less. .TONIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .MON...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .MON NIGHT...NE to E winds 20 to 25 kt. Seas 4 to 6 ft, building to 7 to 10 ft in NE to E swell late. Scattered tstms. .TUE...SE winds 20 to 25 kt. Seas 7 to 11 ft in E swell. .TUE NIGHT...E to SE winds 15 to 20 kt. Seas 7 to 10 ft in E swell. .WED...E winds 10 kt. Seas 5 to 7 ft in E to SE swell. .WED NIGHT...NE to E winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 to 5 ft in E to SE swell. .THU...NE winds 10 kt. Seas 3 ft or less. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ041-202045- SW Louisiana Offshore Waters including Flower Garden Bank Marine Sanctuary- 439 AM EDT Sun Aug 20 2023 .TODAY...Variable winds less than 5 kt, becoming NE 10 to 15 kt in the afternoon. Seas 3 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .MON...NE to E winds 20 to 25 kt. Seas 5 to 7 ft. Scattered tstms. .MON NIGHT...E to SE winds 20 to 30 kt. Seas 7 to 11 ft in E swell. Scattered showers and isolated tstms. .TUE...E to SE winds 20 to 25 kt, diminishing to 15 kt in the afternoon. Seas 7 to 10 ft in E swell. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 6 to 8 ft in E to SE swell. .WED...NE winds 10 kt. Seas 4 to 6 ft in E to SE swell. .WED NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ056-202045- N Central Gulf Offshore Waters- 439 AM EDT Sun Aug 20 2023 .TODAY...NE to E winds 10 to 15 kt. Seas 3 ft or less. .TONIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated tstms. .MON...E to SE winds 20 to 25 kt. Seas 6 to 9 ft in E to SE swell. Scattered showers and isolated tstms. .MON NIGHT...W of 89W, E to SE winds 20 to 30 kt, diminishing to 15 to 20 kt late. E of 89W, E to SE winds 15 to 20 kt. Seas 7 to 11 ft in E to SE swell. .TUE...E winds 15 to 20 kt. Seas 6 to 8 ft W of 89W, and 4 to 6 ft E of 89W. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...E to SE winds 10 kt. Seas 2 to 4 ft. $$ GMZ057-202045- NE Gulf N of 26N E of 87W- 439 AM EDT Sun Aug 20 2023 .TODAY...E winds 15 to 20 kt. Seas 3 ft or less, building to 3 to 5 ft in the afternoon. Scattered showers and isolated tstms. .TONIGHT...E to SE winds 20 kt. Seas 5 to 7 ft. Scattered showers and isolated tstms. .MON...E to SE winds 15 to 20 kt. Seas 6 to 8 ft in SE swell. Scattered showers and isolated tstms. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft in SE swell. .TUE...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 kt. Seas 3 to 5 ft. .WED...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...E winds 10 kt. Seas 3 ft or less. $$ GMZ058-202045- W Central Gulf from 22N to 26N W of 94W- 439 AM EDT Sun Aug 20 2023 .TODAY...Variable winds less than 5 kt, becoming NE 10 kt in the afternoon. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON...Variable winds less than 5 kt, becoming N to NE 10 kt in the afternoon. Seas 3 ft or less. Scattered showers and isolated tstms. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .TUE...SW winds 10 to 15 kt, shifting to E in the afternoon. Seas 6 to 8 ft in NE swell. .TUE NIGHT...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft in E swell. .WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ045-202045- W Central Gulf from 22N to 26N between 91W and 94W- 439 AM EDT Sun Aug 20 2023 .TODAY...NE winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .MON...S of 24N, E to SE winds 10 kt in the morning, becoming variable less than 5 kt. N of 24N, NE to E winds 10 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .MON NIGHT...NE winds 10 to 15 kt, shifting to E to SE 15 to 20 kt late. Seas 3 to 5 ft, building to 6 to 8 ft in NE swell late. Scattered showers and isolated tstms. .TUE...E to SE winds 15 to 20 kt. Seas 6 to 8 ft in NE to E swell. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft in NE to E swell. .WED...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ046-202045- Central Gulf from 22N to 26N between 87W and 91W- 439 AM EDT Sun Aug 20 2023 .TODAY...NE to E winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .MON...SE winds 10 to 15 kt S of 24N, and SE 15 to 20 kt N of 24N. Seas 5 to 7 ft in NE to E swell. Scattered tstms. .MON NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft in NE to E swell. Scattered showers and isolated tstms. .TUE...E winds 15 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE to E winds 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ047-202045- SE Gulf from 22N to 26N E of 87W including Straits of Florida- 439 AM EDT Sun Aug 20 2023 .TODAY...E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...E to SE winds 20 to 25 kt. Seas 4 to 6 ft. Scattered showers and isolated tstms. .MON...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. Scattered showers and isolated tstms. .MON NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .TUE...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .WED...NE to E winds 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ048-202045- SW Gulf S of 22N W of 94W- 439 AM EDT Sun Aug 20 2023 .TODAY...S of 21N W of 95W, E to SE winds 10 kt in the morning, becoming variable less than 5 kt. Elsewhere, NE to E winds 10 kt. Seas 3 ft or less. .TONIGHT...S of 21N W of 95W, N to NE winds 10 kt in the evening, becoming variable less than 5 kt. Elsewhere, N to NE winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON...NW to N winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...NW to N winds 10 kt. Seas 3 ft or less. .TUE NIGHT...S of 21N W of 95W, NE winds 10 kt in the evening, becoming variable less than 5 kt. Elsewhere, NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 kt. Seas 3 to 5 ft. .WED NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NW to N winds 15 to 20 kt S of 21N W of 95W, and N 10 kt elsewhere. Seas 3 to 5 ft. .THU NIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ049-202045- Central Bay of Campeche- 439 AM EDT Sun Aug 20 2023 .TODAY...NE winds 10 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON...S of 20N, NW to N winds 10 kt in the afternoon. Variable winds less than 5 kt in the morning. N of 20N, variable less than 5 kt. Seas 3 ft or less. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...Variable winds less than 5 kt S of 20N, and E 10 kt N of 20N. S of 20N, seas 3 ft or less. N of 20N, seas 3 ft or less, building to 3 to 5 ft in the afternoon. .TUE NIGHT...NE winds 10 to 15 kt. S of 20N, seas 3 ft or less, building to 2 to 4 ft late. N of 20N, seas 3 to 5 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds 10 kt. Seas 3 to 5 ft. .THU NIGHT...NE to E winds 10 kt, shifting to SE late. Seas 2 to 4 ft. $$ GMZ050-202045- E Bay of Campeche including Campeche Bank- 439 AM EDT Sun Aug 20 2023 .TODAY...NE to E winds 10 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...N to NE winds 10 to 15 kt, shifting to E late. Seas 3 ft or less. .MON...SE to S winds 10 kt. Seas 3 ft or less. .MON NIGHT...W of 90W, N winds 10 kt, shifting to E late. E of 90W, E winds 15 to 20 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE...E to SE winds 10 to 15 kt, shifting to NE in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. $$ Forecaster ERA