A special report from the Bureau of Meteorology reveals that the New South Wales coast experienced its wettest week ever during last month’s floods with 81,000GL of rain falling in the state. Flooding reached record heights on the Mid North Coast and the Hawkesbury-Nepean catchment experienced its most significant flooding for more than 30 years. Several locations received more than 300mm of rain in a day with the highest total 405.5mm at the end of March near Port Macquarie.
Heavy rainfall extended from central Australia to northern inland NSW, bringing significant flooding on some inland rivers in northern NSW. The floodwater moved slowly downstream with the Murray-Darling Basin catchments experiencing some of their largest one-day increases in water storage levels since 1993.