Great Spruce Island Swell ForecastUnited StatesMEWashington CountyGreat Spruce Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIGreat Spruce Island swell forecast issued yesterday at 7:46 pm. Next forecast at approx. 7:46 pm.Get an account to remove ads