An intense weather system moving across eastern parts of Australia is breaking rain records and putting communities on high alert.
Severe weather warnings remain in place for heavy rain in parts of southern Queensland and north-east New South Wales.
A warning for damaging winds and heavy rain is current in South Australia.
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The Bureau of Meteorology (BoM) has issued warnings of heavy rainfall and potential thunderstorms, with the potential for flooding and damaging winds.
Bureau of Meteorology hazard preparedness and response east manager Jane Golding urged residents in Queensland, New South Wales, Victoria and Canberra to be prepared for severe weather.
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"Many areas are expecting significant rainfall, with some places in Queensland and New South Wales likely to see daily rainfall totals of 150 millimetres or more," she said.
"We may see this rainfall over river catchments that are already quite wet as well, so we're encouraging people to 'know your weather, know your risk', and make sure you're staying up to date with the current forecasts and warnings."
Storms and rain are becoming widespread across central Australia and extending to the eastern seaboard as the day progresses.
The BoM said storms are expected to continue into the weekend.
A low-pressure system is expected to become a focus for southern NSW, the Australian Capital Territory and Victoria.
Alice Springs in the Northern Territory recorded its wettest November day in 20 years today as the town's airport reported more than 100 millimetres of rain, according to the Bureau of Meteorology.
This has led to multiple road closures near the swollen Todd River and the rescue of a man who became stranded in the waterway.
Meanwhile, the city of Rockhampton in central Queensland received more than 300mm overnight and into Wednesday.
New South Wales and ACT
The BoM has warned residents, particularly in northern and central New South Wales, to brace for widespread heavy rainfall, damaging winds, large hailstones and possible flooding.
A severe thunderstorm warning remains in place for people in the Central Tablelands, Central West Slopes and Plains, and parts of the Hunter, Metropolitan, North West Slopes and Plains, South West Slopes, Lower Western and Upper Western Forecast Districts.
A flood watch is current for the New South Wales catchments in the Northern and Central Tablelands, North West Slopes and Plains, Riverina and parts of the Mid North Coast.
A flood watch has also been issued for rivers surrounding Canberra.
Queensland
Heavy rains have brought flash flooding to parts of Queensland's Darling Downs region, with the town of Dalby bracing for more wet weather.
Torrents of water flooded roads and swept through the town, with the rain predicted to get worse tomorrow.
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The Bureau of Meteorology has issued warnings of intense rainfall for the rest of south-east Queensland, with more flash flooding likely.
The town of Goondiwindi in particular has been warned to brace for floods.
https://twitter.com/BOM_Qld/status/1458299412300632066
There's a high chance of showers in Brisbane, with the possibility these will develop into thunderstorms.
The city will see a low of 21C and a high of 28C.
Victoria
The BoM's hazard and preparedness response manager for Victoria, Diana Eadie, said parts of the state could expect heavy rain, potential flooding and the possibility of strong winds.
"Heavy rain over river catchments in eastern Victoria also brings a real risk of flooding," Ms Eadie said.
"We are also urging Victorians to be prepared for gusty south-easterly winds, particularly across the southern and mountain areas of the state.
Cloud-cover is expected to increase in Melbourne during the afternoon.
There's a slight chance of a shower developing from late afternoon, increasing to a medium chance at night.
The city will have a low of 11C and a high of 15C.
Western Australia
Perth will be mostly sunny after yesterday's deluge.
A minimum of 11C and a high of 23C is expected.
Northern Territory
Darwin has a high chance of showers with the chance of a thunderstorm.
The city will have a low of 27C and a high of 34C.
South Australia
Adelaide will see possible showers with a medium chance of rain around the northern suburbs.
A minimum of 11C and a high of 20C is expected.
Tasmania
It will be a cloudy day in Hobart with a very high chance of showers.
There's a possibility of an afternoon or early evening thunderstorm.
Temperatures will hit a low of 10C and a high of 14C.
