Entrance Channel (Humboldt Bay) Swell ForecastUnited StatesCAHumboldt CountyEntrance Channel (Humboldt Bay)1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIEntrance Channel (Humboldt Bay) swell forecast issued yesterday at 10:49 pm. Next forecast at approx. 10:49 pm.Get WillyWeather+ to remove ads