521 FZNT25 KNHC 192021 OFFN04 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 421 PM EDT Thu Jul 19 2018 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... Southeast Gulf of Mexico .SYNOPSIS...Weak high pressure ridge across the Gulf along 25N will prevail throughout the week. Active convection is expected across the northern Gulf during the next few days. A surface trough will move off the Yucatan Peninsula into the Bay of Campeche each evening, accompanied by fresh nocturnal winds. .TONIGHT...SW to W winds 10 to 15 kt. Seas 2 ft or less. Scattered showers and isolated thunderstorms. .FRI...S to SW winds 10 to 15 kt. Seas 2 ft or less. Scattered showers and isolated thunderstorms. .FRI NIGHT...W winds 10 to 15 kt, shifting to S to SW late. Seas 2 ft or less. Scattered showers and isolated thunderstorms. .SAT...SW winds 10 to 15 kt. Seas 2 ft or less. Isolated thunderstorms. .SAT NIGHT...W winds 10 to 15 kt. Seas 2 ft or less. .SUN...W winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .SUN NIGHT...W winds 10 to 15 kt. Seas 3 ft. .MON...SW to W winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...S winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 4 ft. Within 200 nm east of the coast of Florida .SYNOPSIS...Strong high pressure across the central Atlantic extending SW to the NW Bahamas will remain in place through Sunday. Generally tranquil marine conditions will prevail across most of the region through the weekend. Squalls and a few thunderstorms will move westward across the SE waters tonight through Fri associated with a tropical wave. .TONIGHT...SE to S winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 to 4 ft N of 27N. Scattered showers and isolated thunderstorms. .FRI...SE to S winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 to 4 ft N of 27N. Scattered showers and isolated thunderstorms. .FRI NIGHT...SE to S winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. Scattered showers and isolated thunderstorms. .SAT...SE to S winds 10 to 15 kt S of 27N, and S to SW 10 to 15 kt N of 27N. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. Scattered showers and isolated thunderstorms. .SAT NIGHT...S winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 ft N of 27N. .SUN...S to SW winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 to 4 ft N of 27N. .SUN NIGHT...S winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 to 4 ft N of 27N. .MON...SE to S winds 15 to 20 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. .MON NIGHT...SE to S winds 15 to 20 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. .TUE...SE to S winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. .TUE NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N.