000 FZNT27 KNHC 202150 OFFN06 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 550 PM EDT Sun Aug 20 2023 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...Moderate to fresh winds prevail over the eastern Gulf associated with a surface trough off the west coast of Florida. Showers and thunderstorms have increased this afternoon in association with with this trough. Additional development of this system is possible 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 medium chance of development in 48 hours and 7 days. Regardless of development, rough seas can be expected in the central and western Gulf on Mon through Tue. Northwest Gulf of Mexico .TONIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...NE to E winds 20 to 25 kt. Seas 4 to 6 ft. Scattered showers and isolated tstms. .MON NIGHT...E winds 20 to 25 kt. Seas 6 to 9 ft. Numerous showers and scattered tstms. .TUE...E to SE winds 20 to 25 kt. Seas 6 to 9 ft. Scattered showers and isolated tstms. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. .THU...NE to E winds 5 to 10 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 3 ft. .FRI...NE winds 5 to 10 kt. Seas 3 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas 3 ft. North Central and Northeast Gulf of Mexico .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 8 ft. Scattered showers and isolated tstms. .MON NIGHT...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.