FZNT26 KNHC 181347 OFFN05 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 947 AM EDT Mon May 18 2026 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...High pressure centered over the central Atlantic will support fresh trade winds and 5 to 7 ft seas through the week. San Juan Atlantic Waters .THIS AFTERNOON...E winds 15 kt in the afternoon. Seas 6 to 7 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. Isolated showers. .TUE...E winds 15 to 20 kt. Seas 6 to 8 ft. Scattered showers. .TUE NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. Isolated showers. .WED...E winds 15 to 20 kt. Seas 6 to 7 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. .THU...E winds 15 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 15 kt. Seas 5 to 7 ft. .FRI...E winds 15 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. San Juan Caribbean Waters .THIS AFTERNOON...E winds 15 kt in the afternoon. Seas 5 to 6 ft. Scattered showers. .TONIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. Scattered showers. .TUE...E winds 15 to 20 kt. Seas 5 to 6 ft. Isolated showers. .TUE NIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. Scattered showers. .WED...E winds 15 to 20 kt. Seas 5 to 6 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. .THU...E winds 15 kt. Seas 5 to 6 ft. .THU NIGHT...E winds 15 kt. Seas 4 to 6 ft. .FRI...E winds 15 kt. Seas 4 to 5 ft. .FRI NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft.