Sand Island Dike Light Swell ForecastUnited StatesORClatsop CountySand Island Dike Light1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIISand Island Dike Light swell forecast issued today at 3:48 pm. Next forecast at approx. 3:48 pm.Get WillyWeather+ to remove ads