000 FZNT27 KNHC 120909 OFFN06 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 509 AM EDT Sun Sep 12 2021 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...Showers and thunderstorms over the Bay of Campeche and southern Gulf of Mexico have been increasing during the past several hours near and east of a surface trough of low pressure. A tropical depression is expected to form later today or tonight while the system moves northwestward and then northward near the coast of northeastern Mexico. Additional development is possible through the middle of next week if the system remains over water, and interests along the western and northwestern Gulf coast should monitor the progress of this disturbance. Regardless of development, by late today, heavy rain is expected to reach portions of the Texas and Louisiana coasts and continue across those coasts through the middle of the week. Meanwhile, quiescent conditions are expected to prevail across the central and eastern Gulf through midweek. Northwest Gulf of Mexico .TODAY...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. Numerous showers and scattered tstms. .TONIGHT...SE winds 15 to 20 kt. Seas 5 to 7 ft. Scattered showers and isolated tstms. .MON...SE winds 20 to 25 kt. Seas 6 to 9 ft. Scattered tstms. .MON NIGHT...SE winds 20 to 25 kt. Seas 7 to 10 ft in SE to S swell. Numerous showers and scattered tstms. .TUE...SE to S winds 20 to 25 kt. Seas 7 to 10 ft in SE to S swell. .TUE NIGHT...SE to S winds 15 to 20 kt. Seas 6 to 8 ft. .WED...S winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. North Central and Northeast Gulf of Mexico .TODAY...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. Scattered showers and isolated tstms. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated tstms. .TUE...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SE to S winds 5 to 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .THU NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less.