Cyclones are a tropical weather phenomenon. They are usually encountered in Australia between November and April, and they mostly take place in the north of the country. The Western Australian and Northern Territory coasts, as well as the Queensland coast, are the usual places that cyclones occur.
About six cyclones happen in Australia every year. By far the most famous cyclone in Australia is Cyclone Tracy, which hit Darwin in the Northern Territory on Christmas Day. Forty-nine people died as a result, and over 600 people were injured. Darwin had to be evacuated because over eighty per cent of the city was destroyed. But Tracy is not the worst cyclone to ever visit Australia. In 1899, Cyclone Mahina killed over 400 people when it destroyed an entire pearl-fishing fleet at Bathurst Bay in Queensland.