The storm dropped an estimated 500,000 tonnes of hailstones in its path . Insured damages caused by the storm were over A$ 1.7 billion , with the total damage bill ( including uninsured damages ) estimated to be around A$ 2.3 billion . It was the costliest in Australian history in insured damages , surpassing the A$ 1.1 billion in insured damages caused by the 1989 Newcastle earthquake . Lightning also claimed one life during the storm , and the event caused approximately 50 injuries
1989 Newcastle earthquake
1989 Newcastle earthquake
1999 Sydney hailstorm