977 FZNT27 KNHC 110259 OFFN06 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 1059 PM EDT Fri Sep 10 2021 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...The northern part of a tropical wave is interacting with a surface trough over the southwestern Gulf of Mexico. The merger of these features is producing a large but disorganized area of showers and thunderstorms over the Gulf of Mexico. Environmental conditions are expected to be conducive for gradual development over the weekend, and a tropical depression is likely to form on Sunday or Monday before the system moves near or onshore of the western Gulf of Mexico coast. Regardless of development, this disturbance is expected to produce heavy rain late this weekend across portions of the western Gulf coast, including coastal Texas and Louisiana through the middle of next week. Expect an increase in winds and seas along these regions with this system. Meanwhile, a frontal boundary over the northern Gulf will prevail through Sun supporting showers and thunderstorms across the region. Northwest Gulf of Mexico .OVERNIGHT...E winds 10 to 15 kt after midnight. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .SUN...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. Scattered tstms. .SUN NIGHT...SE winds 15 to 20 kt. Seas 5 to 7 ft. .MON...SE to S winds 15 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. .WED...S winds 5 to 10 kt. Seas 3 to 5 ft. .WED NIGHT...SE to S winds 5 to 10 kt. Seas 3 to 4 ft. North Central and Northeast Gulf of Mexico .OVERNIGHT...E winds 5 to 10 kt after midnight. Seas 2 ft or less. Scattered showers and isolated tstms. .SAT...E to SE winds 10 to 15 kt. Seas 2 ft or less. Scattered showers and isolated tstms. .SAT NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .SUN...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. .TUE...E to SE winds 5 to 10 kt. Seas 3 to 4 ft. .TUE NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft. .WED...E to SE winds 5 to 10 kt. Seas 3 ft. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less.