000 FZNT27 KNHC 062056 OFFN06 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 456 PM EDT Wed Sep 6 2017 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...Hurricane Katia near 21.7N 95.1W 992 mb at 5 PM EDT moving SE at 3 kt. Maximum sustained winds 65 kt gusts 80 kt. Katia is forecast to move to near 21.5N 94.7W late tonight, then to near 21.3N 94.7W Thu afternoon, then to near 21.1N 95.0W late Thu night, then near 20.9N 95.9W Fri afternoon, then will make landfall, weakening to a post-tropical cyclone near 19.5N 98.0W Sat afternoon, dissipating by Sun afternoon. Major Hurricane Irma is forecast to move between Cuba and the Bahamas Sat, then turn northward across the Florida peninsula, possibly bringing tropical storm force winds to eastern portions of the Straits of Florida and Florida Bay in the far SE Gulf late Sat into Sun. Northwest Gulf of Mexico .TONIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. .THU...NE winds 20 to 25 kt. Seas 3 to 6 ft. Scattered showers and isolated thunderstorms. .THU NIGHT...NE winds 15 to 20 kt. Seas 3 to 6 ft. .FRI...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .FRI NIGHT...NE winds 15 to 20 kt. Seas 3 to 6 ft. .SAT...NE winds 15 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 15 to 20 kt. Seas 3 to 6 ft. .SUN...N to NE winds 15 to 20 kt. Seas 3 to 7 ft. .SUN NIGHT...N to NE winds 20 to 25 kt. Seas 4 to 8 ft. .MON...N to NE winds 15 to 20 kt. Seas 4 to 8 ft. North Central and Northeast Gulf of Mexico ...HURRICANE CONDITIONS POSSIBLE SUN NIGHT AND MON... .TONIGHT...N winds 15 to 20 kt. Seas 2 ft or less, building to 3 ft after midnight. .THU...NE winds 15 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. .FRI...NE winds 15 to 20 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. .SAT...NE winds 20 to 25 kt. Seas 4 to 7 ft. .SAT NIGHT...NE winds 20 to 25 kt. Seas 4 to 9 ft. .SUN...TROPICAL STORM CONDITIONS POSSIBLE. .SUN NIGHT...HURRICANE CONDITIONS POSSIBLE. .MON...HURRICANE CONDITIONS POSSIBLE.