1961 Western Australian bushfires

In early 1961, a series of bushfires burned in the south-west region of Western Australia. The devastating fires burned large areas of forest in and around Dwellingup from 20 to 24 January, at Pemberton and in the Shannon River region between 11 and 15 February, and in the Augusta-Margaret River area in early March. There were also major fires which burned in the Darling Scarp around Kalamunda. The towns of Dwellingup and Karridale were largely destroyed by the fires, as were a number of smaller railway and mill settlements. There was no loss of human life.

Whilst the 1960 rainy season over the affected region had not been excessively dry, rainfall had been below average over the region affected by the fires ever since August of that year - thus the forests were perhaps even drier than they would normally be by January. However, the underlying cause of the Dwellingup fires lay far to the north in the Pilbara, where a tropical cyclone had formed on 15 January northeast of Darwin had followed a trajectory along the north west Western Australian coast and intensified north east of Onslow and then moved steadily southwards, hitting that town on 24–25 January while having a central pressure of 920 hPa. Hurricane-force winds demolished several buildings and storm surge inundated the town with 1.8 metres water. With a strong high pressure system to the east of the cyclone remaining almost stationary for some days, hot north-easterly winds developed and became so intense that by the 20th maximum temperatures throughout the south west were uniformly above 40 °C (104 °F) and remained at that level for the following five days. During this period, as the cyclone moved slowly along the coast it drenched Onslow and the neighbouring district, but only dry thunderstorms occurred in the south-west, which started fires that spread extremely rapidly in the hot, windy conditions.

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