UPDATE: THE Queensland premier says homes in Bundaberg could be washed off their stumps and has urged remaining residents to get out.Campbell Newman will visit Bundaberg today.
Overnight, 14 helicopters rescued more than a thousand people in the city's north.
"Black Hawks were operating to midnight, using night vision equipment," Mr Newman told Sky News.
"There may still be people in there and we have to get them out."
The immediate focus was to rescue people stranded on islands created by floodwaters moving at more than 70km/h.
"We are concerned about houses being lifted off their stumps and swept away," the premier said.
"People cannot stay in north Bundaberg."
Mr Newman urged people to try to make contact with authorities or get up on their roofs so they could be seen.
He thanked emergency crews, council workers and helicopter pilots.
Mr Newman welcomed a lower than expected flood peak in Ipswich overnight.
"That bodes well for the predicted flood peak today in Brisbane, which is meant to happen before midday at 2.6 metres," he said.
"I'm just speculating here, but we might see a flood level no greater than that."
Mr Newman said there was a feeling of "tired resignation" among people evacuated from this year's floods who had also been flood victims in 2011.
"I know the people here have a lot of guts and don't give up," he said.