FZNT24 KNHC 210821 OFFNT4 Offshore Waters Forecast for the Gulf of America NWS National Hurricane Center Miami, FL 421 AM EDT Wed May 21 2025 Offshore Waters Forecast for the Gulf of America 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. GMZ001-212030- Synopsis for the Gulf of America 421 AM EDT Wed May 21 2025 .SYNOPSIS...A weak ridge extends from the Atlantic just E of the Bahamas W-NW into the eastern Gulf tonight. The resultant pressure gradient between this ridge and lower pressures over Mexico will maintain moderate winds across the basin ahead of an approaching cold front. The weak cold front will sink southeastward into the northern Gulf coastal waters today, stall, then lift north and dissipate through Wed night. Another weak front will sink into the NE Gulf Thu through Thu night then dissipate. High pressure is expected to move into the NE Gulf Fri through this weekend and dominate the basin. Winds will freshen in the western Gulf starting Sat night. E winds will pulse fresh to locally strong along and just north of the Yucatan Peninsula each afternoon and evening through the period as a trough develops daily and drifts westward at night. Smoke from agricultural fires in southeastern Mexico are expected to maintain hazy sky conditions across the Bay of Campeche and western Gulf through the period. $$ GMZ040-212030- NW Gulf of America including Stetson Bank- 421 AM EDT Wed May 21 2025 .TODAY...E to SE winds 10 kt. Seas 3 to 5 ft. .TONIGHT...E to SE winds 10 kt. Seas 2 to 4 ft. .THU...SE winds 10 kt. Seas 2 to 4 ft. .THU NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .FRI...SE winds 10 to 15 kt. Seas 3 ft or less. .FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...SE to S winds 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...SE to S winds 15 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...SE to S winds 15 to 20 kt. Seas 4 to 6 ft. $$ GMZ041-212030- SW Louisiana Offshore Waters including Flower Garden Bank Marine Sanctuary- 421 AM EDT Wed May 21 2025 .TODAY...SE winds 10 kt. Seas 3 to 5 ft. .TONIGHT...E to SE winds 10 kt. Seas 2 to 4 ft. .THU...SE winds 10 kt. Seas 2 to 4 ft. .THU NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .FRI...SE winds 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 2 to 4 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 15 kt. Seas 4 to 6 ft. $$ GMZ056-212030- N Central Gulf of America Offshore Waters- 421 AM EDT Wed May 21 2025 .TODAY...W of 89W, SE to S winds 10 kt in the morning, becoming variable less than 5 kt. E of 89W, SW winds 10 kt. Seas 3 to 5 ft. .TONIGHT...W of 89W, SE winds 10 kt late. Variable winds less than 5 kt in the evening. E of 89W, variable less than 5 kt. Seas 2 to 4 ft. .THU...W of 89W, variable winds less than 5 kt. E of 89W, variable winds less than 5 kt, becoming E to SE 10 kt in the afternoon. Seas 3 ft or less. .THU NIGHT...SE winds 10 kt. Seas 3 ft or less. .FRI...W of 89W, SE winds 10 kt in the afternoon. Variable winds less than 5 kt in the morning. E of 89W, variable less than 5 kt. Seas 3 ft or less. .FRI NIGHT...W of 89W, E to SE winds 10 kt. E of 89W, variable winds less than 5 kt, becoming SE to S 10 kt late. Seas 3 ft or less. .SAT...W of 89W, SE winds 10 kt. E of 89W, variable winds less than 5 kt, becoming SE 10 kt in the afternoon. Seas 3 ft or less. .SAT NIGHT...SE winds 10 kt. Seas 2 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ057-212030- NE Gulf of America N of 26N E of 87W- 421 AM EDT Wed May 21 2025 .TODAY...SW winds 10 kt. Seas 3 ft or less. .TONIGHT...Variable winds less than 5 kt W of 85W, and W to NW 10 kt E of 85W. Seas 3 ft or less. .THU...NE winds 10 kt. Seas 3 ft or less. .THU NIGHT...W of 85W, S winds 10 kt late. Variable winds less than 5 kt in the evening. E of 85W, variable less than 5 kt. Seas 3 ft or less. .FRI...Variable winds less than 5 kt. Seas 3 ft or less in S swell, subsiding to 3 ft or less in the afternoon. .FRI NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .SAT...Variable winds less than 5 kt, becoming NE to E 10 kt in the afternoon. Seas 3 ft or less. .SAT NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .SUN...E to SE winds 10 kt. Seas 3 ft or less. .SUN NIGHT...SE winds 10 kt. Seas 3 ft or less. $$ GMZ058-212030- W Central Gulf of America from 22N to 26N W of 94W- 421 AM EDT Wed May 21 2025 .TODAY...E winds 10 kt. Seas 4 to 6 ft in E swell. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E to SE winds 10 kt. Seas 2 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...E to SE winds 10 kt. Seas 2 to 4 ft. .FRI NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...SE winds 15 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 15 to 20 kt. Seas 4 to 6 ft. $$ GMZ045-212030- W Central Gulf of America from 22N to 26N between 91W and 94W- 421 AM EDT Wed May 21 2025 .TODAY...E to SE winds 10 to 15 kt. Seas 4 to 6 ft in E to SE swell. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E to SE 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. .FRI...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...SE winds 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E to SE winds 15 kt. Seas 4 to 6 ft. $$ GMZ046-212030- Central Gulf of America from 22N to 26N between 87W and 91W- 421 AM EDT Wed May 21 2025 .TODAY...SE winds 10 to 15 kt. Seas 4 to 6 ft in SE swell. .TONIGHT...E winds 15 to 20 kt S of 24N, and E to SE 10 to 15 kt N of 24N. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 15 to 20 kt S of 24N, and E to SE 10 to 15 kt N of 24N. Seas 3 to 5 ft. .FRI...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. $$ GMZ047-212030- SE Gulf of America from 22N to 26N E of 87W including Straits of Florida- 421 AM EDT Wed May 21 2025 .TODAY...S of 24N, E to SE winds 10 kt. N of 24N, SE to S winds 10 kt in the morning, becoming variable less than 5 kt. Seas 2 to 4 ft. .TONIGHT...S of 24N, E winds 10 kt. N of 24N, variable winds less than 5 kt, becoming E 10 kt late. Seas 2 to 4 ft. .THU...E winds 10 kt. Seas 3 ft or less. .THU NIGHT...E winds 10 kt. Seas 3 ft or less. .FRI...E winds 10 kt S of 24N, and variable less than 5 kt N of 24N. Seas 3 ft or less. .FRI NIGHT...NE to E winds 10 kt. Seas 3 ft or less. .SAT...E winds 10 kt. Seas 3 ft or less. .SAT NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. $$ GMZ048-212030- SW Gulf of America S of 22N W of 94W- 421 AM EDT Wed May 21 2025 .TODAY...S of 21N W of 95W, variable winds less than 5 kt, becoming N 10 kt in the afternoon. Elsewhere, E winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 to 5 ft. .TONIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...NE winds 10 kt in the morning, becoming variable less than 5 kt. Seas 2 to 4 ft. .THU NIGHT...S of 21N W of 95W, NE winds 10 to 15 kt in the evening, becoming variable less than 5 kt. Elsewhere, NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .FRI...Variable winds less than 5 kt S of 21N W of 95W, and NE 10 kt elsewhere. Seas 2 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ049-212030- Central Bay of Campeche- 421 AM EDT Wed May 21 2025 .TODAY...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. .FRI...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .FRI NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .SAT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ050-212030- E Bay of Campeche including Campeche Bank- 421 AM EDT Wed May 21 2025 .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 2 to 4 ft. .FRI NIGHT...E winds 15 to 20 kt. Seas 2 to 4 ft. .SAT...E to SE winds 10 to 15 kt, shifting to NE in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...E to SE winds 10 to 15 kt, shifting to NE in the afternoon. Seas 3 to 5 ft. .SUN NIGHT...NE to E winds 15 to 20 kt, shifting to E to SE late. Seas 4 to 6 ft. $$ Forecaster Stripling