UPDATE: CAMPBELL Newman says Queensland will need a lot of Federal Government help to recover from its unfolding flood disaster.

Mr Newman is meeting with the state's disaster managers as cities along the central coast flood, and the southeast corner braces for cyclonic winds and flooding rain.

Before the meeting in Brisbane, he said he was saddened to see the damage tornadoes had done to homes in the Bundaberg region.

He spent the morning with residents of Bargara, where homes were severely damaged by a tornado yesterday.

"What's been hit has been really smashed bad," he told the Seven Network.

He said he toured one family's home and the damage was terrible.

"All their possessions are totally soaked in water, the roof is half ripped off, their caravan smashed, their car smashed and debris all over their yard," Mr Newman said.

He said he was very aware of the flood crisis unfolding in Bundaberg, where a flood could be bigger than the one of 2010-11 and where whole suburbs had been evacuated.

He said some of the properties that went under two years ago would go under again, and that was a heart-breaking prospect for those affected.

He said this afternoon's disaster management meeting would also focus on the impacts for the southeast corner.

"This afternoon the big one is what is going to happen in the Bremer River, Lockyer Creek and the dams," he said.

"That's something I intend to give the community some advice on this afternoon."

He said the meeting would also discuss what help would be sought from the federal government.

"Clearly now we are getting to a situation where we have big impacts. We're going to need a lot of support, particularly with the clean up."

Deputy Prime Minister Wayne Swan will hold a press conference this afternoon to outline what federal assistance will be offered.

Southeast Queensland remains on alert after six tornadoes damaged homes and businesses in the Bundaberg region in the past 24 hours.

And hundreds of homes are at risk of flooding in the central Queensland cities of Gladstone and Bundaberg.

Floods are also expected at Gympie and Maryborough.

Brisbane, the Gold and Sunshine coasts, and northern NSW are also on flood watch as the low pressure system that was Cyclone Oswald tracks south.

Premier Campbell Newman inspected tornado damage at Bargara, near Bundaberg, on Sunday and said emergency services were being stretched by simultaneously unfolding emergencies.

He said the army would likely be called in to help authorities, with the Brisbane-based 7th Brigade on standby to provide support.

"The challenge now is that we've got multiple events going on," he told reporters.

"Let's not forget Gladstone and the needs of that community. We also have Maryborough and Gympie that will see a large flood as well in the next few days and we also have to be very mindful of what might happen in southeast Queensland."

Mr Newman said authorities had to be very careful about where they deployed already stretched resources.

"The places that have the biggest need, particularly I'm talking about rescuing people, preserving public safety ... that's where the initial resourcing effort always has to go," he said.