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Australians survive big week of rains, floods, heat and humidity, but there is light at the end of the tunnel

South-east Queensland and northern New South Wales will have to live with humid conditions until late in the week. (Supplied: Georgina Barbour)

It is all going on with the weather. 

Torrential rainfall and flooding in South Australia, the Northern Territory and Western Australia, horrible humidity in Queensland and even brown rot warnings for stone fruit growers in Victoria. 

For any Tasmanians feeling left out, it has certainly been relatively hot and humid. Locals have been out embracing the chilly ocean. 

Meanwhile, the January stats are out, and La Niña has certainly delivered.

Rain, rain and more rain

Tropical moisture has been shimmying down across the country over the past few weeks.

According to Jonathan How, senior forecaster with the Bureau of Meteorology, we're still in a La Nina pattern, so the waters to the north of the country are still very warm.

"That has basically manifested in very humid and wet conditions for pretty much all the country except for south-western WA," he said. 

Things are especially wet at the moment because the monsoon trough has set over the north of the country, bringing heavy rainfall to parts of Queensland.

But according to Mr How, in the last 24 hours, the heaviest falls have been over parts of Western Australia and South Australia. 

"That's due to a monsoon low which is currently over the Kimberley," Mr How said.

Flood waters approach Broome's historic Sun Pictures outdoor cinema. (Supplied: Lauren Hall)

"It's dragging a lot of moisture from the Indian Ocean right across usually pretty dry areas." 

In Broome, they have received a whopping 500 millimetres since 9am on Sunday. 

Not completely unheard of for the tropics, but still pretty impressive. 

Broome recorded 476.6mm in just one day back on January 30 in 1997.

There have been widespread falls of 50 to 100mm through the Kimberley, the southern Northern Territory and northern South Australia. 

Port Augusta in South Australia received 59mm overnight, with 51mm falling in just an hour as a storm moved through. 

The total hasn't broken any records, but rain that heavy is a once in a century kind of rainfall rate, according to Mr How.  

While over the border in New South Wales, Broken Hill received 61mm, with 41mm falling in the hour. 

A rainfall rate we would only expect around once every 25 to 50 years, according to Mr How.

Several cars had to be rescued from waters around Broome. (ABC Kimberley: Andrew Seabourne)

Light at the end of the tunnel

Not only is this rain leading to fresh flooding, but it is exacerbating the flooding situation in South Australia, where they are still recovering from when the remains of ex-tropical cyclone Tiffany made its way through a few weeks ago.

There is a light at the end of the tunnel, though, for those dealing with the nastier impacts.

 Mr How says the monsoon low will start to weaken off tomorrow.

"Then the monsoon trough itself will really start to break down, and we will return to kind of general monsoon break wet season pattern by the weekend," he said. 

Then a high is pushing across from the west, pushing the humidity and rain east ahead of it. 

The humidity and associated dry rot warnings are expected to calm over the south-east this evening as the high pushes through, bringing fresh southern air. 

"But before that, though, we do see heavy rainfall for Central Australia and pushing to the east coast from tomorrow," he said.

Horrifically humid in Queensland

Those in Queensland will have to suffer through a number of days of stiffing heat and humidity by the time the change makes it to them.

Right now, Queenslanders are really feeling it as the tropical moisture-laden air is making it feel much hotter than the temperature gauge would suggest. 

Why Australia’s suburbs are so hot?

"It really is very much the same air mass that the south-east country just kind of push north," Mr How said.

"It's very stale, very kind of muggy air which hasn't really been flushed out as yet."

Showers and potential storms over the next few days could temporarily cool things down for south-east Queensland, but we will have to wait until the cooler air from the south pushes through to get a real reprieve. 

But that is not expected until Thursday or, more likely, Friday, according to Mr How. 

So hang in there and take it easy, Queenslanders.

January stats bring no surprise

It's the first of February and the preliminary January stats are in.

With all of the flooding, it is going to come as no surprise that  South Australia had well above average rainfall in January. 

South-east Australia also saw above average rain, but the nation as a whole received slightly below average rainfall for the month of January. 

Despite this, rainfall storages in the east are still up compared to this time last year. 

The La Niña is now at its peak and is expected to hang around until early autumn, which is helping to drive a wetter than average outlook for the east coast, Top End and much of Queensland. 

Queensland is forecast to have above-average rainfall over the next three months. (Supplied: Bureau of Meteorology)

Mean temperatures for the country as a whole were 1.1 Centigrade degrees above the January average. This is down on last January but well below the blistering January of 2019. 

The south-west largely missed out on the muggy tropical conditions and got blasted with heat. 

Perth had six straight days at or above 40C in January, the longest patch over 40C in the whole of their 123 years of records.

This severe weather season is far from over yet. 

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