Residents are on evacuation alert in several rural Queensland towns cut off by floods, as torrential rain continues.
The ABC reports the statewide damage bill is more than $A600 million and many people believe the worst is still to come.
The weather bureau says the areas at greatest risk in the next 24 hours are in the south of the state at Chinchilla, Dalby, Warwick, and further north at Theodore and Rockhampton in central Queensland.
Floodwaters have risen rapidly at Dalby on the Western Darling Downs, and homes and businesses in Chinchilla further west, have water at roof level.
Much of the town of Theodore is flooded. The Dawson River has passed the 1956 record there of 14.07 metres.
The State Emergency Service says it received 1800 calls across the state on Monday.
The ABC reports the flooding is also affecting northern New South Wales, where several areas are cut off by floodwaters.
The Roads and Traffic Authority warns motorists to expect delays on the Pacific Highway.