445 FZNT27 KNHC 182009 OFFN06 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 409 PM EDT Sat Aug 18 2018 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...A surface trough will develop along the Yucatan Peninsula during the late afternoons, then drift westward across the southwest Gulf waters during the overnight hours accompanied by a fresh east to southeast wind shift, with the trough dissipating along 96W during the late mornings. Otherwise, a ridge will dominate the Gulf waters accompanied by a gentle to moderate anticyclonic flow. Expect moderate to fresh winds across the northwest Gulf Sun evening into Mon. The ridge is forecasted to shift south and extend across the central waters during the middle of next week. Northwest Gulf of Mexico .TONIGHT...S winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft late. .SUN...S to SW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE to S winds 15 to 20 kt. Seas 3 to 5 ft. .MON...S winds 15 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...S to SW winds 5 to 10 kt. Seas 3 ft. .TUE NIGHT...SW winds 5 to 10 kt. Seas 2 ft or less. .WED...W winds 5 to 10 kt. Seas 2 ft or less. .WED NIGHT...NW winds 5 to 10 kt, shifting to SW to W late. Seas 2 ft or less. .THU...W to NW winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds 5 to 10 kt, shifting to SE late. Seas 2 ft or less. North Central and Northeast Gulf of Mexico .TONIGHT...S to SW winds 5 to 10 kt. Seas 2 ft or less. .SUN...S winds 5 to 10 kt. Seas 2 ft or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft or less. .MON...S winds 5 to 10 kt. Seas 2 ft or less. .MON NIGHT...S winds 5 to 10 kt. Seas 2 ft or less. .TUE...SW winds 5 to 10 kt. Seas 2 ft or less. .TUE NIGHT...SW to W winds 10 to 15 kt. Seas 2 ft or less. .WED...W winds 10 to 15 kt. Seas 2 ft or less. .WED NIGHT...W winds 5 to 10 kt. Seas 2 ft or less. .THU...W to NW winds 5 to 10 kt. Seas 2 ft or less. .THU NIGHT...NW winds 5 to 10 kt, shifting to S late. Seas 2 ft or less.