Further storms are expected to hit central and southern Queensland, central and western New South Wales as well as the NSW South Coast, north-western Victoria, and northwest Tasmania.
Flood watches have been issued across these states, with authorities particularly concerned for central and western NSW with many river systems already in flood.
"Many communities that recently experienced flooding or are currently in flood will likely see rivers rise in the coming week," the Bureau said in a release.
"The ground remains saturated, and any additional rainfall will cause streams and rivers to rise."
Meantime, authorities are concerned about the safety of racegoers ahead of this weekend's Bathurst 1000 event, with more than 200,000 supercar enthusiasts expected to attend.
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