000 FZNT26 KNHC 040240 OFFN05 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 1040 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 17.4N 59.6W Tuesday evening, near 19.3N 65.0W Wednesday evening, near 21.2N 70.2W Thursday evening, then near 22.8N 74.5W Fri evening. San Juan Atlantic Waters .OVERNIGHT...E winds 5 to 10 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...TROPICAL STORM CONDITIONS POSSIBLE. San Juan Caribbean Waters .OVERNIGHT...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 10 to 15 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...HURRICANE CONDITIONS POSSIBLE. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .FRI...SE winds 20 to 25 kt. Seas 4 to 5 ft.