FZNT26 KNHC 212014 OFFN05 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 414 PM EDT Sat Mar 21 2026 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...The Atlantic ridge extending into the NE Caribbean will shift eastward allowing a frontal boundary to reach the island by Sun morning. Under this weather pattern, the southerly winds will veer to the N and NE on Sun, and to the NE and E starting on Mon as high pressure builds over the western Atlantic in the wake of the front. Moderate to locally fresh winds and moderate seas will prevail through the forecast period. Periods of unsettled weather are also expected on Sun with the front. San Juan Atlantic Waters .TONIGHT...SW to W winds 15 to 20 kt, shifting to NW 10 to 15 kt after midnight. Seas 5 to 7 ft. Scattered showers. .SUN...N winds 15 to 20 kt. Seas 6 to 8 ft. Scattered showers. .SUN NIGHT...N to NE winds 10 to 15 kt. Seas 6 to 8 ft in N swell. .MON...NE winds 10 to 15 kt. Seas 6 to 7 ft in N swell. .MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...NE to E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 5 to 6 ft. .WED...E winds 15 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 5 to 6 ft. San Juan Caribbean Waters .TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers. .SUN...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. Scattered showers. .SUN NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. .MON...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. Scattered showers. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft. .THU...E winds 15 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft.