000 FZNT25 KNHC 152116 OFFN04 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 516 PM EDT Sun Sep 15 2019 ...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 broad area of disorganized showers and thunderstorms over the central and eastern Gulf of Mexico is associated with an upper-level low and a weak surface trough. Some slight development of this system is possible during the next couple of days while it moves westward over the western Gulf of Mexico. The system is forecast to move inland along the northwestern Gulf coast by late Monday or Tuesday, and further development is not expected after that time. High pressure will gradually build over the Gulf Tue through Fri. .TONIGHT...W winds 10 to 15 kt, shifting to SW after midnight. Seas 3 ft. .MON...W winds 5 to 10 kt. Seas 2 ft or less. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 2 ft or less. .TUE...N winds 5 to 10 kt. Seas 2 ft or less. .TUE NIGHT...N winds 10 to 15 kt. Seas 2 ft or less. .WED...N to NE winds 10 to 15 kt. Seas 2 ft or less. .WED NIGHT...NE winds 15 to 20 kt. Seas 2 ft or less, building to 3 ft after midnight. .THU...NE to E winds 15 to 20 kt. Seas 3 to 4 ft. .THU NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .FRI...NE to E winds 15 to 20 kt. Seas 3 to 6 ft. Within 200 nm east of the coast of Florida .SYNOPSIS...Tropical Storm Humberto near 29.3N 78.0W 989 mb at 5 PM EDT moving N at 5 kt. Maximum sustained winds 60 kt gusts 75 kt. Humberto will strengthen to a hurricane near 29.8N 77.6W Mon morning, move to 30.1N 76.7W Mon afternoon, 30.4N 75.4W Tue morning, 30.7N 73.6W Tue afternoon, and 31.7N 68.9W Wed afternoon. Humberto will change little in intensity as it moves near 35.0N 62.0W Thu afternoon, and weaken to a tropical storm over 39.6N 56.1W Fri. The center of Humberto will continue to move away from the Bahamas and remain well offshore of the east coast of Florida through Wednesday. Additional strengthening is forecast through Wednesday, and Humberto is expected to become a hurricane by tonight. Northerly swell will reach the Atlantic passages into the Caribbean Sea late on Mon and subside Wed. ...HURRICANE WARNING... .TONIGHT...TROPICAL STORM CONDITIONS. SW winds 15 to 20 kt S of 27N, and W 55 to 65 kt N of 27N. Seas 3 to 19 ft in N to NE swell. Scattered showers and isolated tstms. Vsby 1 NM or less. .MON...TROPICAL STORM CONDITIONS EXPECTED. S of 27N,SW to W winds 15 to 20 kt. N of 27N,W winds 60 to 65 kt, becoming W to NW 40 to 45 kt in the afternoon. Seas 3 to 14 ft in NE swell. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W to NW winds 10 to 15 kt S of 27N, and NW 25 to 30 kt N of 27N. Seas 3 to 12 ft. .TUE...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 10 to 15 kt S of 27N, and NW to N 20 to 25 kt N of 27N. Seas 3 to 10 ft. .TUE NIGHT...N winds 10 to 15 kt S of 27N, and N 15 to 20 kt N of 27N. Seas 3 to 9 ft. .WED...N winds 10 to 15 kt S of 27N, and N to NE 20 to 25 kt N of 27N. Seas 3 to 8 ft. .WED NIGHT...N to NE winds 15 to 20 kt S of 27N, and NE 20 to 25 kt N of 27N. Seas 3 to 9 ft. .THU...NE winds 15 to 20 kt S of 27N, and NE 20 to 25 kt N of 27N. Seas 3 to 10 ft. .THU NIGHT...NE to E winds 15 to 20 kt S of 27N, and NE to E 20 to 25 kt N of 27N. Seas 3 to 10 ft. .FRI...NE to E winds 15 to 20 kt. Seas 3 to 10 ft.