Black Rock Passage Swell ForecastAustraliaWAGascoyneBlack Rock Passage1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIBlack Rock Passage swell forecast issued today at 3:52 am. Next forecast at approx. 3:52 am. Wave Height Sea TemperatureGet WillyWeather+ to remove ads