000 FZNT26 KNHC 030241 OFFN05 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 1041 PM 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 local waters Wed, reaching near 19.9N 64.5W Wed evening, then near 22.5N 69.5W Thu evening. San Juan Atlantic Waters .OVERNIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .MON...E winds 5 to 10 kt. Seas 4 to 5 ft. .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 10 ft. .TUE NIGHT...HURRICANE CONDITIONS POSSIBLE. .WED...HURRICANE CONDITIONS POSSIBLE. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...HURRICANE CONDITIONS POSSIBLE. San Juan Caribbean Waters .OVERNIGHT...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. .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 5 to 10 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. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...TROPICAL STORM CONDITIONS POSSIBLE.