Thunder Hole Swell ForecastUnited StatesMEHancock CountyThunder Hole1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIThunder Hole swell forecast issued today at 1:46 am. Next forecast at approx. 1:46 am.Get WillyWeather+ to remove ads