The Bureau of Meteorology says Queensland has seen the worst of the latest storms, with two lives claimed in the heavy rains.
South-east Queensland was hit with huge falls, a month after a severe flooding disaster, but forecaster Felim Hannify said the wet weather had eased, as the heavy rainfall headed into northern New South Wales.
"We've still got some lingering [showers] this evening but they'll contract southward overnight and into tomorrow, so a lot less showers tomorrow," Mr Hannify said.
"The low pressure system is really winding itself up off New South Wales, so that will pull everything south over the next day or two."
Mr Hannify said more rainfall was possible across the already-drenched Gold Coast region this evening and into tomorrow.
"But much lighter in nature and nothing of the intensity we saw … overnight," he said.
Mr Hannify said flood watches and warnings remained current for several catchments in the south-east corner, with riverine flooding yet to peak at several locations.
Major flooding may occur along the Logan river at Beaudesert, south of Brisbane, on Tuesday evening, with the river currently at 7.52 metres and approaching a major flood level of 8.3 metres.
"We're still seeing the rivers responding to that overnight rainfall," Mr Hannify said.
"It doesn't take much – even 20 millimetres of rainfall from a passing shower can create river responses in some of the catchments and that just shows you how saturated everything is."
Mr Hannify said parts of southern Queensland could also see further isolated rainfall this evening.
"For Dalby, a bit of reprieve but further south we still expect some showers, particularly this evening, we could get some isolated heavy showers across southern parts of the Darling Downs, the Granite Belt, the Scenic Rim, and around Warwick as well," he said.
Body recovered this morning
Emergency services have found the body of a man washed away in floodwater at North Branch in Queensland's Southern Downs yesterday.
Just after 6:00am on Monday, emergency services were called to reports two vehicles had become stuck in floodwaters at a crossing with Spring Creek near Stirling Road.
A woman, the sole occupant of one of the vehicles, was assisted to safety by members of the public.
Police said initial investigations suggest a man in his 40s got out of the other vehicle and was swept away in the floodwater.
Police, swiftwater rescue crews and the RACQ Lifeflight Rescue helicopter conducted an extensive search of the area.
His body was located this morning.
It is the second flood-related death from this weather event, after a man died yesterday when his vehicle was trapped in floodwaters, also on the Darling Downs.
A man in his 40s, who was operating a pet transport service, was found dead after his car was washed off the road in Kingsthorpe near Toowoomba.
Emergency services have carried out 14 water-related rescues in south-east Queensland during the weather event, with people being told not to ignore warnings.
Multiple locations on the Gold Coast have recorded over 200 millimetres of rain since 9:00am yesterday, with the Tallebudgera Valley receiving as much as 340mm of rain.
SES have received 214 calls so far and volunteers are continuing to provide assistance.
Roads damaged, beaches closed
A landslip caused severe damage to one road in the Gold Coast hinterland.
Beechmont Road was closed between Nerang-Murwillumbah Road and Binna Burra Road after one section of the road surface collapsed.
All beaches on the Gold Coast are closed.
Chief lifeguard Chris Maynard said dirty and powerful swells have been battering the coast.
"There's a lot of run off, a lot of surges in that condition so please take care, please stay well off the beachfront and maybe stay up on the footpath."
Flooding begins to recede in Dalby
Water is receding in Dalby on the Western Downs, after floods cut the town in two yesterday.
Major flood levels at Dalby peaked early this morning at about 3.6 metres, below the highest peak recorded in 2011.
Western Downs Mayor Paul McVeigh said trapped travellers have been able to shelter at two evacuation centres.
"I've just been out to the evacuation centre at the showgrounds and we've got 15 in the centre there," he said.
"That impact has been reasonably significant, especially those that have been impacted by water going above their floorboards."
Emergency crews worked through the night to move people to higher ground and rescue motorists who had driven across flooded roads.
Mr Grant said river warnings for the Condamine River are likely to remain in place for at least a week as water from heavy downpours makes its way downstream.
Queensland Premier Annastacia Palaszczuk said four houses in Dalby were inundated overnight and the occupants were taken to an evacuation centre.
She said another 2,000 homes could have had water through their yards.
Four schools are still closed and many roads around south-east Queensland remain "treacherous" and some "impassable".
"It saddens me that the message is still not getting through — if it's flooded, forget it, " Ms Palaszczuk said.
"These [emergency] teams risk their lives to save others and always will, though we owe it to them to minimise that risk by staying out of harm's way."
Palaszczuk urges federal government to agree to funding
Ms Palaszczuk said she hopes the federal government agrees to fund half of the state's $771 million resilience package, which will make Queensland homes more flood-resilient or, in many cases, buy them back so their occupants can rebuild elsewhere.
"Coming so soon after the devastating floods of late February, there would be many families who heard the heavy rain on their roof overnight and feared a repeat," she said.
"I urge the Prime Minister to look at Queensland. We've never seen so much rain."
Ms Palaszczuk said the state had provided emergency grants to 84,000 people "in the most desperate need".
"The package we've asked for would provide permanent relief to these families.
"This resilience package is essential, it is necessary and it deserves to be funded here in Queensland."
Deputy Premier Steven Miles said out of more than16,500 assessments undertaken on homes and commercial buildings, nearly half were impacted by the flood disaster in the last month.
Over 1,800 homes and business were assessed as severely damaged and more than 6,000 had moderate or minor levels of damage.
Many properties have suffered costly water damage from flooding and roof leaks during the heavy sustained rainfall.
"While some properties will be repaired quickly, others may not be habitable for months, if not longer," Mr Miles said.
Mr Miles said the $771 million resilience package is the "largest ever" disaster recovery package in the state's history.
"The current proposal has been with the PM for over a week and the clock is ticking," he said.
Dam waters released
Seqwater said flood releases began at Wivenhoe Dam, 80 kilometres north of Brisbane, late yesterday.
Somerset Dam, which feeds into Wivenhoe Dam, began releasing water yesterday morning.
The bulk water supply authority said "small" operational releases had also started at North Pine Dam, north of Brisbane.
Queensland Fire and Rescue Service Operations Commander Cheryl-Lee Fitzgerald urged people to stay abreast of warnings and remain extremely cautious of flooded areas.
"As we've seen … the situation can change very quickly so stay up to date, know the risks and if there are risks don't travel if you don't need to."
Heavy rain is expected to continue across northern New South Wales today and tomorrow.
