000 FZNT25 KNHC 281501 OFFN04 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 1101 AM EDT Sat Oct 28 2017 ...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...A cold front from near the Florida/Alabama border to the Bay of Campeche will sweep across the Gulf this weekend with fresh to strong northerly winds behind it, except gale force offshore of Veracruz through late tonight. Tropical Depression Eighteen is forecast to strengthen to a tropical storm this evening over western Cuba near 23.0N 81.8W quickly moving NE across the Straits of Florida ahead of the cold front, then continue NE near the NW Bahamas near 26.6N 78.5W Sun morning. Winds and seas will diminish across the Gulf through Sun night with more tranquil marine conditions through early next week. ...TROPICAL STORM WARNING... .THIS AFTERNOON...E winds 20 to 25 kt. Seas 3 to 6 ft. Scattered thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 30 to 35 kt. Seas 4 to 7 ft. .SUN...NW to N winds 25 to 30 kt. Seas 6 to 9 ft. Scattered showers and isolated thunderstorms. .SUN NIGHT...NW to N winds 20 to 25 kt. Seas 6 to 9 ft. .MON...N to NE winds 10 to 15 kt. Seas 3 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 3 ft. .WED...E winds 15 to 20 kt. Seas 3 to 4 ft. Within 200 nm east of the coast of Florida .SYNOPSIS...A trough over the Bahamas will support scattered thunderstorms today. Tropical Depression Eighteen is in the NW Caribbean near 23.0N 81.8W 1005 mb at 1500 UTC moving NNE at 19 kt. Maximum sustained winds 30 kt gust to 40 kt. The depression is forecast to strengthen to a tropical storm this evening over western Cuba near 23.0N 81.8W quickly moving NE across the Straits of Florida ahead of the cold front, then continue NE near the NW Bahamas near 26.6N 78.5W Sun morning ahead of a cold front moving from the Gulf of Mexico. The tropical storm will move N of the area near 31.5N 74.0W by Sun evening before becoming an extratropical low ahead of the front. The front will follow in the wake of the tropical storm, reaching from Bermuda to the Windward Passage by Mon afternoon, then stalling and weakening through mid week. ...TROPICAL STORM WARNING... .THIS AFTERNOON...TROPICAL STORM CONDITIONS POSSIBLE. E to SE winds 20 to 25 kt S of 27N, and E to SE 10 to 15 kt N of 27N. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. SE winds 30 to 35 kt S of 27N, and SE 20 to 25 kt N of 27N. Seas 3 to 5 ft, building to 3 to 9 ft late. Scattered thunderstorms. .SUN...TROPICAL STORM CONDITIONS EXPECTED. S of 27N, W winds 35 to 40 kt, becoming W to NW 25 to 30 kt in the afternoon. N of 27N, SE winds 35 to 40 kt, shifting to W to NW in the afternoon. Seas 3 to 11 ft S of 27N, and 4 to 14 ft N of 27N. Scattered showers and isolated thunderstorms. .SUN NIGHT...NW to N winds 20 to 25 kt S of 27N, and NW 25 to 30 kt N of 27N. Seas 3 to 6 ft S of 27N, and 3 to 13 ft N of 27N. .MON...NW to N winds 15 to 20 kt. Seas 3 to 10 ft. .MON NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 6 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.