417 FZNT24 KNHC 172118 OFFNT4 Offshore Waters Forecast for the Gulf of Mexico NWS National Hurricane Center Miami, FL 518 PM EDT Thu Aug 17 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. GMZ001-180930- Synopsis for the Gulf of Mexico 518 PM EDT Thu Aug 17 2023 .SYNOPSIS...A surface ridge over the Gulf waters will support mostly gentle to moderate winds and slight seas across the basin through Sat night. Looking ahead, a surface trough is expected to move across the Gulf from east to west Sun through early next week. The trough could form into a broad area of low pressure in the central or W Gulf by the beginning of next week. Some slow development of this system is possible thereafter as it moves westward and approaches the western Gulf of Mexico coastline by the middle of next week. $$ GMZ040-180930- NW Gulf including Stetson Bank- 518 PM EDT Thu Aug 17 2023 .TONIGHT...Variable winds less than 5 kt, becoming S 10 to 15 kt late. Seas 3 ft or less. .FRI...S to SW winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. .FRI NIGHT...SE to S winds 10 to 15 kt. Seas 3 ft or less. .SAT...S to SW winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. .SAT NIGHT...SE winds 10 kt. Seas 3 ft or less. .SUN...Variable winds less than 5 kt, becoming NE to E 10 kt in the afternoon. Seas 3 ft or less. .SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .MON...NE to E winds 10 to 15 kt. Seas 3 ft or less. .MON NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .TUE...NE to E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 5 to 7 ft in E swell. .TUE NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft in E swell. $$ GMZ041-180930- SW Louisiana Offshore Waters including Flower Garden Bank Marine Sanctuary- 518 PM EDT Thu Aug 17 2023 .TONIGHT...Variable winds less than 5 kt, becoming S 10 kt late. Seas 3 ft or less. .FRI...SW winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. .FRI NIGHT...Variable winds less than 5 kt, becoming S 10 kt late. Seas 3 ft or less. .SAT...W of 92W, SW winds 10 kt in the morning. Variable winds less than 5 kt in the afternoon. E of 92W, variable winds less than 5 kt in the morning. Seas 3 ft or less. .SAT NIGHT...Variable winds less than 5 kt, becoming SE to S 10 kt late. Seas 3 ft or less. .SUN...Variable winds less than 5 kt, becoming NE to E 10 kt in the afternoon. Seas 3 ft or less. .SUN NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .MON...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. .TUE...SE winds 20 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft. $$ GMZ056-180930- N Central Gulf Offshore Waters- 518 PM EDT Thu Aug 17 2023 .TONIGHT...Variable winds less than 5 kt, becoming SW 10 kt late. Seas 3 ft or less. .FRI...SW to W winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .FRI NIGHT...W of 89W, S winds 10 kt late. Variable winds less than 5 kt in the evening. E of 89W, variable less than 5 kt. Seas 3 ft or less. .SAT...Variable winds less than 5 kt. Seas 3 ft or less. .SAT NIGHT...E winds 10 kt. Seas 3 ft or less. .SUN...NE to E winds 10 to 15 kt. Seas 3 ft or less. .SUN NIGHT...E winds 15 kt. Seas 3 to 5 ft. .MON...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. .TUE...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ057-180930- NE Gulf N of 26N E of 87W- 518 PM EDT Thu Aug 17 2023 .TONIGHT...SW winds 10 kt. Seas 3 ft or less. .FRI...SW to W winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .FRI NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .SAT...Variable winds less than 5 kt. Seas 3 ft or less. .SAT NIGHT...E winds 10 kt. Seas 3 ft or less. .SUN...E winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .MON...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE to E winds 10 kt. Seas 3 to 5 ft. $$ GMZ058-180930- W Central Gulf from 22N to 26N W of 94W- 518 PM EDT Thu Aug 17 2023 .TONIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. .FRI...SE to S winds 10 kt. Seas 3 ft or less. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. .SAT...SE winds 10 kt. Seas 3 ft or less. .SAT NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .SUN...Variable winds less than 5 kt, becoming NE to E 10 kt in the afternoon. Seas 3 ft or less. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt, becoming N to NE 10 to 15 kt in the afternoon. Seas 3 ft or less. .MON NIGHT...NE winds 10 to 15 kt in the evening, becoming variable less than 5 kt. Seas 2 to 4 ft in NE to E swell. .TUE...W of 96W, N winds 10 kt. E of 96W, variable winds less than 5 kt, becoming SE 10 kt in the afternoon. Seas 2 to 4 ft in NE to E swell. .TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. $$ GMZ045-180930- W Central Gulf from 22N to 26N between 91W and 94W- 518 PM EDT Thu Aug 17 2023 .TONIGHT...S of 24N, E winds 10 kt. N of 24N, variable winds less than 5 kt, becoming SE to S 10 kt late. Seas 3 ft or less. .FRI...S of 24N, SE winds 10 to 15 kt. N of 24N, SE to S winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. .FRI NIGHT...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. Scattered showers and isolated tstms. .SAT NIGHT...NE to E winds 10 kt. Seas 3 ft or less. .SUN...NE to E winds 10 kt. Seas 3 ft or less. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .MON...E winds 10 kt. Seas 2 to 4 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. .TUE...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ046-180930- Central Gulf from 22N to 26N between 87W and 91W- 518 PM EDT Thu Aug 17 2023 .TONIGHT...E to SE winds 10 to 15 kt S of 24N, and variable less than 5 kt N of 24N. Seas 3 ft or less, building to 3 ft or less in E to SE swell late. .FRI...S of 24N, SE winds 10 kt. N of 24N, S winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less in E to SE swell, subsiding to 3 ft or less in the afternoon. .FRI NIGHT...NE to E winds 10 to 15 kt S of 24N, and variable less than 5 kt N of 24N. Seas 3 ft or less, building to 3 ft or less in E to SE swell late. .SAT...E winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. .SAT NIGHT...NE to E winds 10 kt. Seas 3 ft or less. .SUN...NE to E winds 10 to 15 kt. Seas 3 ft or less. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .MON...SE winds 10 kt. Seas 3 to 5 ft. .MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 15 kt. Seas 3 to 5 ft. $$ GMZ047-180930- SE Gulf from 22N to 26N E of 87W including Straits of Florida- 518 PM EDT Thu Aug 17 2023 .TONIGHT...NE to E winds 10 kt S of 24N, and variable less than 5 kt N of 24N. Seas 3 ft or less. .FRI...NE to E winds 10 kt S of 24N, and variable less than 5 kt N of 24N. Seas 3 ft or less. .FRI NIGHT...N to NE winds 10 to 15 kt, shifting to NE to E late. Seas 3 ft or less. .SAT...NE to E winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. .SUN...E to SE winds 10 kt. Seas 2 to 4 ft. .SUN NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .MON...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 15 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. $$ GMZ048-180930- SW Gulf S of 22N W of 94W- 518 PM EDT Thu Aug 17 2023 .TONIGHT...E winds 10 kt. Seas 3 ft or less. .FRI...SE winds 10 kt. Seas 3 ft or less. .FRI NIGHT...E winds 10 kt. Seas 3 ft or less. .SAT...S of 21N W of 95W, E to SE winds 10 kt in the morning, becoming variable less than 5 kt. Elsewhere, E winds 10 kt. Seas 3 ft or less. .SAT NIGHT...E winds 10 kt. Seas 3 ft or less. .SUN...S of 21N W of 95W, variable winds less than 5 kt. Elsewhere, E winds 10 kt, shifting to N to NE in the afternoon. Seas 3 ft or less. .SUN NIGHT...N to NE winds 10 kt. Seas 3 ft or less. .MON...NW to N winds 10 kt. Seas 3 ft or less. .MON NIGHT...N to NE winds 10 kt, shifting to W to NW late. Seas 3 ft or less. .TUE...S of 21N W of 95W, NW to N winds 10 kt. Elsewhere, NW winds 10 kt in the morning, becoming variable less than 5 kt. Seas 3 ft or less. .TUE NIGHT...S of 21N W of 95W, NE to E winds 10 kt in the evening, becoming variable less than 5 kt. Elsewhere, E winds 10 kt. Seas 3 ft or less. $$ GMZ049-180930- Central Bay of Campeche- 518 PM EDT Thu Aug 17 2023 .TONIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .FRI...E to SE winds 10 to 15 kt. Seas 3 ft or less. .FRI NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .SAT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft. .SUN...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less. .MON...Variable winds less than 5 kt. Seas 3 ft or less in NE to E swell, subsiding to 3 ft or less in the afternoon. .MON NIGHT...NE winds 10 kt, shifting to E to SE late. Seas 3 ft or less. .TUE...S of 20N, variable winds less than 5 kt in the morning. Variable winds less than 5 kt in the afternoon. N of 20N, SE winds 10 kt in the morning. Seas 3 ft or less. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. $$ GMZ050-180930- E Bay of Campeche including Campeche Bank- 518 PM EDT Thu Aug 17 2023 .TONIGHT...N to NE winds 10 to 15 kt, shifting to E late. Seas 3 ft or less. .FRI...E to SE winds 10 to 15 kt. Seas 3 ft or less. .FRI NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...NE winds 15 to 20 kt W of 90W, and NE to E 10 to 15 kt E of 90W. Seas 2 to 4 ft. .SUN...W of 90W, E winds 10 to 15 kt, shifting to N to NE in the afternoon. E of 90W, variable winds less than 5 kt, becoming NE 10 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...NE winds 10 to 15 kt, shifting to E to SE late. Seas 3 ft or less. .MON...W of 90W, variable less than 5 kt. Winds SE winds 10 kt in the morning. E of 90W, NE to E winds in the afternoon. Seas 3 ft or less. .MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .TUE...W of 90W, SE winds 10 kt in the morning, becoming variable less than 5 kt. E of 90W, NE to E winds 10 to 15 kt. Seas 3 ft or less. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. $$ Forecaster Hagen