Premier Annastacia Palaszczuk is asking Queenslanders to dig deep and donate to flood-affected families, announcing the state government will start the Queensland flood appeal with $2.1 million.
Ms Palaszczuk said the Australian Red Cross, Lifeline, The Salvation Army and St Vincent de Paul would each receive $500,000.
BHP is donating $2 million and Suncorp is donating $1 million across the Queensland and New South Wales disaster, with $200,000 going towards the government's flood appeal.
It came as the Bureau of Meteorology issued a severe thunderstorm warning for heavy rain and damaging winds for the Gympie, Cherbourg, Sunshine Coast, Somerset, South Burnett, Wide Bay, Darling Downs and Granite Belt regions.
As the extent of the damage starts to come to light, Ms Palaszczuk has revealed 26,686 hardship grant applications had been submitted so far.
There have been 9,643 payments made totalling $4.2 million and benefiting 23,000 people.
On Saturday, the state and federal governments announced a financial support package of $558.5 million for small businesses, farmers, not-for-profit organisations and sporting and community clubs devastated by the flood emergency.
Ms Palaszczuk said there had also been more than 10,000 calls to the community safety hotline.
Suncorp Insurance said 15,000 claims had been made in Queensland alone.
It said the five most affected suburbs were Rocklea, Deagon, Brighton, Windsor and The Gap.
Logan Mayor Darren Power said 90 homes were lost in his region, and 50 businesses inundated.
"Logan dodged a bullet. Had it not stopped raining on Sunday night, it would've been a lot worse," he said.
More wild weather
Severe thunderstorms hit the southern Queensland coast on Sunday evening, bringing heavy rainfall and large hailstones.
Hail as big as 9 centimetres was recorded in Beaudesert as storms moved through the area towards the coast late Sunday afternoon.
Steve Hadley from the Bureau of Meteorology (BOM) said that storm was "quite an organised supercell storm", but it quickly diminished in ferocity as it moved east.
The severe weather warning stretched from Rockhampton to the Gold Coast, with fears heavy rainfall could cause flooding in creeks and rivers already swollen by earlier rain.
Police Commissioner Katarina Carroll urged people to be careful on the roads.
"It is still quite saturated," she said.
"We will expect flash flooding so please be patient, please keep off flooded waters."
Authorities said the disaster response had moved into the recovery phase.
The Mud Army 2.0 has been stood down after Saturday's major effort.
The defence force will take over on Monday, with 135 personnel already assisting across Ipswich, the Lockyer Valley, Gympie and Brisbane.
There were clean-up efforts happening in some areas of the Redlands and Moreton Bay on Sunday.
Some communities in Gympie are still isolated but they are being looked after and the roads to those communities are expected to open on Monday.
There are 140 people left in evacuation centres.
Ms Palaszczuk said only 3,000 people were still without power.
"So that [restoring electricity] has been a huge mammoth effort as well," she said.
She said fewer than a dozen state schools would remain closed tomorrow, with the list to be available on the state government website.
Council rebate available in Brisbane
It comes as Lord Mayor Adrian Schrinner announced up to 28,000 residents and business owners affected by flooding in Brisbane would receive a $250 rebate for their next rates bill, as part of a recovery package from the Brisbane City Council.
Mr Schrinner said although the clean-up and recovery were still underway, the financial toll on many residents and business owners was expected to continue for quite some time.
"[From what] I've seen so far, we will have more flood waste and debris to collect than there was in 2011 as well. So the task in terms of that kerbside collection is significantly more than what it was in 2011."
He said all Brisbane residential rates notices for the April quarter would also be postponed a month, ensuring bills did not arrive until the end of next month.
Public transport system returns
Minister for Transport Mark Bailey said "most" rail services, and 90 per cent of bus services would be operational on Monday.
Mr Bailey said the government still had "concerns" over stations throughout Logan, which would remain closed.
The Beenleigh station has opened, but buses will continue to replace trains from Beenleigh to Kuraby.
The Shorncliffe and Cleveland lines will be running.
Mr Bailey said everything was being done to restore stations past Ipswich on the Rosewood line.
Some roads remain closed as repair works continue.
"We're opening as much as we can, as well as making sure it's safe … we'll continue to see gradual improvements [to road conditions] during the week," he said.
