Main roads within the centre and north of the state have been lower off, and half a metre extra of rain is anticipated.
Previously 24 hours, 400mm has fallen west of Mackay, and a extreme climate warning stays in place from Ayr to Mackay.
Emergency warnings are additionally in place alongside the Pioneer River, which is anticipated to peak in Mackay at 7am AEST.
Low-lying streets within the metropolis CBD are anticipated to go underwater.
The Bruce Freeway, in the meantime, stays lower by floodwaters in a number of spots, inflicting provide complications for supermarkets.
There have been naked cabinets on the Mackay CBD Coles yesterday with bread, fruit, greens and meat all briefly provide.
Motorists stay stranded on the street close to Proserpine, with dozens informed they might be caught till Thursday because of the flooding.
Police have carried out meals drops for the stranded drivers.
There have additionally been a number of rescues of vehicles from floodwaters.
No person has drowned, however there was one loss of life recorded after a person died at Nebo in a single car crash late on Monday night time.
He is believed to have misplaced management of his automotive within the moist situations.
Pub goes underwater in WA outback flood catastrophe