Great Spoon Island Swell ForecastUnited StatesMEKnox CountyGreat Spoon Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIGreat Spoon Island swell forecast issued today at 7:45 am. Next forecast at approx. 7:45 am. Wave Height Sea TemperatureGet WillyWeather+ to remove ads