Emergency crews have been sent to the north Queensland town of Cardwell, where cyclone-damaged homes have been swamped by flash floods.
Roads in and out of Cardwell are closed, and the Bruce Hiighway further north is cut around Tully and Ingham.
Police say they are frustrated some motorists are ignoring warnings to stay off the roads.
More than 200 millimetres of rain has fallen at Tully, Ingham and Cardwell, flooding homes and roads just a month after Cyclone Yasi caused widespread damage.
Euramo, south of Tully, received 500mm of rain in the past few days.
However, the weather bureau says the heavy rain is expected to weaken later today.
More volunteers
Emergency Management Queensland (EMQ) spokesman Wayne Coutts says 20 extra volunteers are on their way to help the cyclone-weary town.
He says they have only received one call about a flooded home, but believe more have been swamped.
"Our intelligence tells us there might be about 20 properties in that Cardwell area that have perhaps had water through them," he said.
"That's just going by some anecdotal sort of stuff, with some pictures that we've seen that people have sent us and the few [State Emergency Service] that are getting around in that area."
A cyclone evacuation centre was reopened for flood victims in Cardwell last night, but Inspector David Tucker says it was not used.
"That could be the fact that the first encouragement is for people to go with family," he said.
Premier Anna Bligh says her thoughts are with the people of Cardwell who are now dealing with flood damage a month after the cyclone.
Ms Bligh says she hopes crews will be able to access the town today to help with the clean-up and repair effort.
She says it has been a difficult few weeks for residents across the north.
"We are hoping to send teams of SES workers in there today," she said.
"Of course the highway's been cut off again. which makes the recovery effort even more difficult.
She says it is another blow for the community four weeks after being hit by Cyclone Yasi.
"I think the people in Cardwell have been through some terrible events in the last few weeks - I just hope their spirits are keeping high in the face of what Mother Nature is dishing up again," she said.
"I understand the majority of this has been flash-flooding so it will drop down reasonably quickly.
"But nevertheless, It's not much fun when you're trying to rebuild your life, having water come back through your home.
"For some people ... that may mean further damage, so that's something we'll have to get back and have a look at."
Ingham region
Meanwhile, Hinchinbrook Mayor Pino Giandomenico says the region is experiencing major flooding, but it is not having a significant impact on the town of Ingham.
The weather bureau issued a severe weather warning for more heavy rain today which could lead to flash flooding, including around the Herbert and Lower Burdekin.
Mr Giandomenico says the continued rain is creating headaches for residents and work crews.
"In Ingham, it's a major flood but it's not a catastrophic flood," he said.
"It's cut off all the roads - it's gone into the lower areas of the town.
"The biggest thing is that our roads are damaged and this is going to do a lot more damage to the roads."
Army help
The head of Queensland's flood recovery taskforce, Major General Mick Slater, says it is not the army's role to help with the clean-up long after the floods and cyclones.
Major General Slater is in Esk in the Brisbane Valley in south-east Queensland today, to discuss the local council's request for military assistance.
He says the army is usually only available when there is an immediate threat to life and property.
Major General Slater says it is also important that Defence personnel do not take jobs away from locals.
"Not everyone in these communities has been devastated and I would like to see that initial great community spirit that we saw everybody out and helping their neighbours continue a little bit longer, rather than sit back and say hey bring in the army," he said.
Insurance praise
The Australian insurance industry has received an unexpected pat on the back from north Queensland.
Cassowary Coast Mayor Bill Shannon says insurers have done a good job in the wake of Cyclone Yasi, although the response has not been as fast as it was after Cyclone Larry in 2006.
"I say that without being critical, in as much as everyone understands the whole insurance industry in Australia, and in Queensland in particular, is under a lot of pressure at the present time," he said.
- Reporting by Andree Withey, Penny Timms and Brad Ryan
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