Jacob Island Swell ForecastUnited StatesAKLake and Peninsula BoroughJacob Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIJacob Island swell forecast issued today at 3:47 am. Next forecast at approx. 3:47 am.Get an account to remove ads