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 9:46 am. Next forecast at approx. 9:46 am.Get WillyWeather+ to remove ads