Isle Au Haut - Merchants Cove Swell ForecastUnited StatesMEKnox CountyIsle Au Haut - Merchants Cove1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIIsle Au Haut - Merchants Cove swell forecast issued yesterday at 7:47 pm. Next forecast at approx. 7:47 pm.Get an account to remove ads