000 FZNT26 KNHC 020929 OFFN05 NAVTEX Marine Forecast NWS National Hurricance Center Miami, FL 529 AM EDT Sat Sep 2 2017 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...Mainly gentle to moderate trades will prevail through Tue as a weak ridge remains centered across the W central Atlc. Moderate long period NNE swell will affect the area waters this afternoon through late Sun. Hurricane Irma will approach the waters of the Leeward Islands Tue night, reaching near 18.4N 59.3W, and continue WNW and reach near 21.0N 64.5W Wed night as a major hurricane. San Juan Atlantic Waters .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. Scattered showers and isolated thunderstorms. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft in N swell. Scattered showers and isolated thunderstorms. .SUN...E to SE winds 10 to 15 kt. Seas 5 to 6 ft. Scattered showers and isolated thunderstorms. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. Scattered showers and isolated thunderstorms. .MON...E winds 5 to 10 kt. Seas 4 to 5 ft in E swell. .MON NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 7 ft. .TUE...NE to E winds 10 to 15 kt. Seas 5 to 8 ft in E swell. .TUE NIGHT... HURRICANE CONDITIONS POSSIBLE. .WED... HURRICANE CONDITIONS POSSIBLE. San Juan Caribbean Waters .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .SUN...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 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 4 ft. .TUE NIGHT... HURRICANE CONDITIONS POSSIBLE. .WED... HURRICANE CONDITIONS POSSIBLE.