000 FZNT27 KNHC 102017 OFFN06 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 417 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 portion of a tropical wave is forecast to move into the Bay of Campeche and merge with a pre-existing surface trough by Sunday. Environmental conditions are expected to be conducive to support gradual development, and a tropical depression is likely to form on Sunday or Monday before the system moves onshore along the western Gulf of Mexico coast. Regardless of development, heavy rains are likely to reach portions of the western Gulf coast late this weekend. Meanwhile, a frontal boundary over the northern Gulf will prevail through Sun supporting showers and thunderstorms across the region. Northwest Gulf of Mexico .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 ft. Scattered showers and isolated tstms. .SAT NIGHT...E to SE winds 15 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 showers and isolated 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 .TONIGHT...NE to E winds 5 to 10 kt. 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.