MacKerricher State Park Swell ForecastUnited StatesCAMendocino CountyMacKerricher State Park1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIMacKerricher State Park swell forecast issued yesterday at 9:50 pm. Next forecast at approx. 9:50 pm.Get WillyWeather+ to remove ads