000 FZNT26 KNHC 160945 OFFN05 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 545 AM EDT Mon Aug 16 2021 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...Tropical Depression Grace near 17.4N 70.2W 1010 mb at 5 AM EDT moving W at 13 kt. Maximum sustained winds 30 kt gusts 40 kt. Grace will move to near 17.9N 72.2W this afternoon, to near 18.6N 74.8W late tonight, then strengthen to a tropical storm near 19.3N 77.4W Tue afternoon with maximum sustained winds 35 kt gusts 45 kt. Grace will move to near 20.1N 80.2W late Tue night, to near 20.8N 83.3W Wed afternoon and to the Yucatan Channel late Wed night. Marine conditions are expected to slowly improve overnight into Mon. San Juan Atlantic Waters .TODAY...E to SE winds 15 to 20 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .TONIGHT...E to SE winds 15 to 20 kt. Seas 4 to 5 ft. Scattered showers and isolated thunderstorms. .TUE...E winds 15 to 20 kt. Seas 4 to 5 ft. Scattered showers and isolated thunderstorms. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .THU...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 15 to 20 kt. Seas 5 to 7 ft. San Juan Caribbean Waters .TODAY...SE winds 25 to 30 kt, becoming E to SE 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Numerous showers and thunderstorms. .TONIGHT...E to SE winds 15 to 20 kt. Seas 3 to 4 ft. Scattered showers and isolated thunderstorms. .TUE...E winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .TUE NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers and isolated thunderstorms. .WED...E winds 15 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .THU...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 15 to 20 kt. Seas 5 to 6 ft.