Most of the east coast of Queensland, and the coast of New South Wales from the Illawarra northwards, experienced very heavy rainfall during the period from 22 to 29 January 2013, as a result of the former tropical cyclone Oswald tracking southwards along a track just inland from the Queensland coast. This rainfall resulted in severe flooding in many areas within 200 kilometres of the east coast, most notably in the Burnett catchment in Queensland and the Clarence catchment in northern New South Wales, both of which reached record flood peaks.
Oswald formed in the Gulf of Carpentaria on 21 January, and made landfall that night near Kowanyama, on the west coast of Cape York Peninsula, as a category 1 system. It rapidly weakened after landfall and was downgraded to a tropical low on the morning of 22 January. The low then moved near the east coast, being centred off Cooktown on 23 January and then tracked slowly to the south-southeast just inland from the coast. It was centred near Townsville on the 24th, became slow-moving in the St. Lawrence- Rockhampton area on the 25th and 26th, and then resumed a southwards track to be centred near Dalby on the 28th. It then accelerated southwards and moved offshore near Sydney on the 29th before moving out to sea. >> More