Stunning before and after video of the river highlights the devastating effects of Cyclone Jasper's flooding in northern Queensland

Shocking before and after videos of Barron Falls following record rainfall in Far North Queensland show the massive amount of floodwaters hitting the region.

Two videos of the Barron River waterfall outside Cairns were shared on social media on Wednesday, showing the falls on December 10 and 18.

Massive rainfall caused by ex-tropical Cyclone Jasper, which was classified as a Category 2 system when it made landfall north of Port Douglas on December 13, has caused major widespread flooding in northern Queensland.

One video showed the waterfall before the cyclone hit the state, with footage of a stream trickling down the rocky cliff, while a second video showed the devastating impact of the weather system with a torrent of water rushing down.

A final flood warning remains in effect for the Barron River and the Daintree and Mossman Rivers.

“River levels in the Barron River catchment continue to fall following significant flooding in recent days,” the Bureau of Meteorology said.

'River levels along the lower Barron River at Kamerunga Bridge and Cairns Airport are now expected to be below minor flood level.

'No significant rainfall has been recorded across the catchment area since late Sunday and no further significant rainfall is forecast across the catchment area in the coming days.'

Minor flood warnings are also in force for the Tully, Herbert and Murray rivers.

Fortunately, major weather warnings for the northern tropical coast and parts of the peninsula and Gulf country were lifted on Wednesday as the ex-cyclone moves towards the tip of the Cape.

However, the agency came under fire earlier this week for seriously underestimating how much rain would hit the region.

On Saturday the Bureau forecast that Cairns would receive a fall of between 30 and 130mm, but on Sunday alone a fall of 268mm was recorded.

Twelve locations in far north Queensland saw record amounts of rainfall, with some areas receiving a year's worth of rain in one day.

Mossman South, an hour northwest of Cairns, received 1,935mm of rain in five days, while Black Mountain near Cooktown recorded 2,189mm.

Douglas Shire Mayor Michael Kerr said the Office was “unaware of the situation”.

“If this is such a record, how could no one know this was going to happen? We need to have predictions that are closer to reality.'

Cyclone Jasper is now forecast to have less than a five percent chance of redeveloping as it passes through the Cape this week.

But the severe damage and weather it has caused in the far north since last week has delayed clean-up and rescue operations.

Major roads, including parts of the Captain Cook Highway from Palm Cove to Craiglie and Smithfield to Stratford and the Palmerston Highway from Millaa Millaa to Innisfail, remain blocked.

Evacuations are still underway to rescue residents trapped in Wujal Wujal. Another emergency flight is planned for Wednesday.

Deputy Police Chief Shane Chelepy said crews evacuated 97 people from the small community to Cooktown on Tuesday.

“We also had access to all the isolated communities across the cape. There are 36,” he told ABC News Breakfast.

“We have managed to get into 16 of those communities and we will continue that today.

“It was nice that we didn't see any serious injuries or serious concerns in those communities.”

Nine residents, including a seven-year-old child and several health workers, were rescued after being stranded on the roof of the Wujal Wujal Health Clinic.

“It now seems likely that we will have to evacuate the entire town of Wujal Wujal,” Queensland Premier Steven Miles told reporters on Monday.

“This rainfall is next level.”

Emergency services have carried out more than 370 rapid water rescues and received more than 1,000 calls for help since the flooding began last week.

At least nine people were forced to climb onto roofs in Bloomfield and Degarra, where an 85-year-old man was reported missing on Sunday.

Queensland Police said they are “extremely concerned” for the missing man's welfare and urged anyone with information to come forward.

'We were unable to locate that man. I am now very concerned for his well-being,” Commissioner Chelepy said.

“The vegetation was broken and torn through and where the male individual's house was located, it was washed away.”

Prime Minister Anthony Albanese said his government will provide “whatever it takes” to help residents.

“A number of people have been isolated and have had to be rescued from their terrible circumstances, so our thoughts go out to all the people in those communities,” he said.

The Royal Australian Navy, operating from HMAS Cairns naval base, is supporting evacuations with the Australian Defense Force deployed to the region.

Clean-up efforts have begun in Cairns, where regional council mayor Terry James said 1,400 homes have been damaged, some completely destroyed.

About 3,500 households are still without power.

Applications for the Australian Government Disaster Recovery Payment (AGDRP) and Disaster Recovery Allowance (DRA) open at 2pm on Wednesday.

Residents of the local government areas of Cairns, Cassowary Coast, Cook, Douglas, Hope Vale, Mareeba, Tablelands, Wujal Wujal and Yarrabah are eligible for financial support.

The AGDRP is a one-time payment of $1,000 for adults and $400 for children affected by the devastating floods.