000 FZNT26 KNHC 032056 OFFN05 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 456 PM EDT Sun Sep 3 2017 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS..Building NE to E swells will propagate W across the tropical waters S of 22N through Mon ahead of tropical storm force and greater conditions that will shift W across the tropical waters S of 21N through mid week in association with Hurricane Irma. Irma is forecast to reach a position near 17.3N 58.2W Tuesday afternoon, near 19.1N 63.5W Wednesday afternoon, move near 21.2N 68.8W by Thursday afternoon, then near 23.0N 73.5W Fri afternoon. San Juan Atlantic Waters .TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. Scattered showers and isolated thunderstorms. .MON...E winds 5 to 10 kt. Seas 4 to 6 ft. .MON NIGHT...NE to E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NE to E winds 10 to 15 kt. Seas 5 to 9 ft. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. NE to E winds 20 to 25 kt, increasing to 30 to 35 kt late. Seas 6 to 15 ft. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...HURRICANE CONDITIONS POSSIBLE. .THU NIGHT...HURRICANE CONDITIONS POSSIBLE. .FRI...SE winds 25 to 30 kt. Seas 5 to 11 ft. San Juan Caribbean Waters .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 5 to 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...NE to E winds 15 to 20 kt. Seas 3 to 6 ft. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. NE winds 20 to 25 kt, increasing to 30 to 35 kt late. Seas 3 to 10 ft. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...TROPICAL STORM CONDITIONS POSSIBLE. .THU NIGHT...SE to S winds 25 to 30 kt. Seas 4 to 7 ft. .FRI...SE winds 25 to 30 kt, diminishing to 15 to 20 kt in the afternoon. Seas 4 to 5 ft.