414 FZNT24 KNHC 210850 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 450 AM EDT Sun May 21 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. GMZ001-212100- Synopsis for the Gulf of Mexico 450 AM EDT Sun May 21 2023 .SYNOPSIS...Weak high pressure will dominate the Gulf of Mexico through early next week, inducing light to gentle winds and slight seas. A diurnal trough will move offshore each night W of the Yucatan Peninsula, with moderate N to NE winds ahead of it. A weak frontal trough will sink into the northern Gulf Wed and move southward, and gradually produce gentle to moderate N to NE winds across the entire basin. Popocatepetl Volcano in Mexico near 19N98.6W has produced 2 large eruptions overnight, moving ENE away from the volcano. Ash aloft has recently moved over water and may be reaching the surface from 19N to 22N between 96W and the Mexican coast. Visibilities may be restricted 3 to 5 nm across this area. Mariners should exercise caution. $$ GMZ040-212100- NW Gulf including Stetson Bank- 450 AM EDT Sun May 21 2023 .TODAY...N winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...N to NE winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .MON...S of 27N, variable winds less than 5 kt in the morning. Variable winds less than 5 kt in the afternoon. N of 27N, N to NE winds 10 kt in the morning. Seas 3 ft or less. Scattered showers and isolated tstms. .MON NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .WED...Variable winds less than 5 kt. Seas 3 ft or less. .WED NIGHT...E winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft or less. .THU...NE to E winds 10 kt. Seas 3 ft or less. .THU NIGHT...E winds 10 kt. Seas 3 ft or less. $$ GMZ041-212100- SW Louisiana Offshore Waters including Flower Garden Bank Marine Sanctuary- 450 AM EDT Sun May 21 2023 .TODAY...NW to N winds 10 kt. Seas 3 ft or less. .TONIGHT...N winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft or less. .MON...NW to N winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. .MON NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .WED...Variable winds less than 5 kt, becoming N to NE 10 kt in the afternoon. Seas 3 ft or less. .WED NIGHT...NE to E winds 10 kt. Seas 3 ft or less. .THU...NE winds 10 kt. Seas 3 ft or less. .THU NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ056-212100- N Central Gulf Offshore Waters- 450 AM EDT Sun May 21 2023 .TODAY...Variable winds less than 5 kt, becoming NW to N 10 kt in the afternoon. Seas 3 ft or less. .TONIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt. Seas 3 ft or less. .MON NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...Variable winds less than 5 kt, becoming NW 10 kt in the afternoon. Seas 3 ft or less. .TUE NIGHT...W of 89W, NW to N winds 10 kt in the evening, becoming variable less than 5 kt. E of 89W, N winds 10 to 15 kt. Seas 3 ft or less, building to 2 to 4 ft late. .WED...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. .WED NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds 15 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ057-212100- NE Gulf N of 26N E of 87W- 450 AM EDT Sun May 21 2023 .TODAY...N winds 10 kt. Seas 3 ft or less. .TONIGHT...NW to N winds 10 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt. Seas 3 ft or less. .MON NIGHT...NW to N winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...Variable winds less than 5 kt, becoming NW 10 kt in the afternoon. Seas 3 ft or less. .TUE NIGHT...NW to N winds 10 kt. Seas 3 ft or less, building to 2 to 4 ft late. .WED...NW to N winds 10 to 15 kt. Seas 2 to 4 ft. .WED NIGHT...N to NE winds 15 to 20 kt. Seas 4 to 6 ft. .THU...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ058-212100- W Central Gulf from 22N to 26N W of 94W- 450 AM EDT Sun May 21 2023 .TODAY...N to NE winds 10 kt. Seas 3 ft or less. .TONIGHT...NE to E winds 10 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt. Seas 3 ft or less. .MON NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt, becoming SE 10 kt in the afternoon. Seas 3 ft or less. .TUE NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .WED...E to SE winds 10 kt. Seas 3 ft or less. .WED NIGHT...E winds 10 kt. Seas 3 ft or less. .THU...E winds 10 kt. Seas 3 ft or less. .THU NIGHT...E winds 10 kt. Seas 3 ft or less. $$ GMZ045-212100- W Central Gulf from 22N to 26N between 91W and 94W- 450 AM EDT Sun May 21 2023 .TODAY...N to NE winds 10 kt. Seas 3 ft or less. .TONIGHT...NE winds 10 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt. Seas 3 ft or less. .MON NIGHT...NE winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...NE winds 10 kt. Seas 3 ft or less. .WED...NE winds 10 kt. Seas 3 ft or less. .WED NIGHT...NE winds 10 kt. Seas 3 ft or less. .THU...NE winds 10 kt. Seas 3 ft or less. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ046-212100- Central Gulf from 22N to 26N between 87W and 91W- 450 AM EDT Sun May 21 2023 .TODAY...N to NE winds 10 kt. Seas 3 ft or less. .TONIGHT...NE winds 10 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt. Seas 3 ft or less. .MON NIGHT...NE winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...N to NE winds 10 kt. Seas 3 ft or less. .WED...Variable winds less than 5 kt, becoming N 10 kt in the afternoon. Seas 3 ft or less. .WED NIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. .THU...N to NE winds 10 kt. Seas 2 to 4 ft. .THU NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ047-212100- SE Gulf from 22N to 26N E of 87W including Straits of Florida- 450 AM EDT Sun May 21 2023 .TODAY...N to NE winds 10 kt. Seas 3 ft or less. .TONIGHT...N to NE winds 10 kt. Seas 3 ft or less. .MON...N to NE winds 10 kt. Seas 3 ft or less. .MON NIGHT...N to NE winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...N to NE winds 10 kt. Seas 3 ft or less. .WED...Variable winds less than 5 kt, becoming NW 10 kt in the afternoon. Seas 3 ft or less. .WED NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. .THU...NW winds 10 kt. Seas 2 to 4 ft. .THU NIGHT...N winds 10 kt. Seas 2 to 4 ft. $$ GMZ048-212100- SW Gulf S of 22N W of 94W- 450 AM EDT Sun May 21 2023 .TODAY...N winds 10 to 15 kt. Seas 2 to 4 ft. Haze and volcanic ash. .TONIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. .MON...N winds 10 kt. Seas 3 ft or less. .MON NIGHT...NE to E winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...NE to E winds 10 kt. Seas 3 ft or less. .WED...Variable winds less than 5 kt, becoming NE to E 10 kt in the afternoon. Seas 3 ft or less. .WED NIGHT...NE to E winds 10 kt. Seas 3 ft or less. .THU...NE to E winds 10 kt. Seas 3 ft or less. .THU NIGHT...NE to E winds 10 kt. Seas 3 ft or less. $$ GMZ049-212100- Central Bay of Campeche- 450 AM EDT Sun May 21 2023 .TODAY...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. Haze. .TONIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft. .MON...N to NE winds 10 kt. Seas 3 ft or less. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. .TUE...NE to E winds 10 kt. Seas 3 ft or less. .TUE NIGHT...NE winds 10 kt. Seas 3 ft or less. .WED...NE winds 10 kt. Seas 3 ft or less. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. .THU...NE winds 10 kt. Seas 3 ft or less. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ050-212100- E Bay of Campeche including Campeche Bank- 450 AM EDT Sun May 21 2023 .TODAY...NE winds 10 kt. Seas 2 to 4 ft. Haze. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. .MON...NE to E winds 10 kt, shifting to N to NE in the afternoon. Seas 3 ft or less. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. .TUE...E winds 10 kt, shifting to N in the afternoon. Seas 3 ft or less. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. .WED...W of 90W, NE to E winds 10 kt, shifting to N in the afternoon. E of 90W, variable winds less than 5 kt, becoming N 10 kt in the afternoon. Seas 3 ft or less. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. .THU...NE to E winds 10 kt, shifting to N in the afternoon. Seas 3 ft or less. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. $$ Forecaster Stripling