Melbourne was hit by a torrent of torrential rains, which caused chaos for commuters and left behind people with knee-deep flood water.
It was predicted that a month of rain would fall in parts of Melbourne and Victoria on Thursday.
The wet weather arrived in the south of the country, so far north Queensland and the Northern Territory prepared for Cyclone Owen to intensify to a category four.
Going barefoot was the best way for soaked pedestrians to explore South Melbourne on Thursday morning
At the other end of Australia Cyclone Owen is gaining strength and is expected to reach the coast on Friday
Dozens of vehicles are stuck in floods on the Hume Freeway (photo) near Wangaratta in the center of Victoria
The rain was very heavy in Victoria on Thursday morning; Coldstream recorded 18 mm of rain between 6:00 and 7:00, Keilor 12 mm and both Laverton and Altona 11 mm.
A number of warnings were issued by emergency services and transport networks for motorists and commuters to remain safe.
Rain now descends in bucket loads across most of Melbourne! Please be extra careful in / around our train stations & on our platforms, paths, ramps and stairs, & # 39; Metro Trains tweeted.
Victoria State Emergency Service added: "Heavy rain showers today with local flash overflows make driving conditions dangerous for all suburbs. Drive in conditions and maintain a greater distance between you and the vehicle in front. And remember: if it is flooded, forget it! & # 39;
Near Wangaratta in the center of Victoria, dozens of vehicles were stranded in high water on the Hume Freeway, which was closed in both directions at Barnawartha between Wangaratta and Chiltern.
Parts of South Melbourne are battered with flash overflows. On the photo is a motorist who tries his luck on the road
Most parts of Melbourne received 15-25 mm of rain on Thursday morning at 10 am, the Bureau of Meteorology told Daily Mail Australia
Melbourne motorists ignore warnings from authorities not to drive through flooded roads, which contributes to chaos
The average December rainfall for Melbourne is 60 mm, and some parts of the city were expected to reach only on Thursday.
& # 39; The bulk of Melbourne has received 15-25 mm to 10 hours & # 39; in the morning, with another forecast of 10-25 mm for the remainder of the day, & # 39; predicts Bureau of Meteorology predictor Peter Newham Daily Mail Australia on Thursday.
& # 39; There is a heavy weather warning on the spot, with more rain on the way to Friday. & # 39;
The rain will soften against insulated showers by Saturday.
More rain is on its way to Melbourne on Thursday afternoon, which will continue on Friday before it relaxes on Saturday
Parts of Melbourne (photo) get the average monthly rainfall of December of 60 mm per day on Thursday
It is caused by a trough of air mass movement from the north, and with a low-pressure system that comes through, it generates large amounts of precipitation, "said Newham against Daily Mail Australia.
Regional areas such as Horsham, Bendigo, Shepparton, Seymour, Maryborough, Ballarat, Geelong and Wodonga were steeped.
Meanwhile, at the top of Australia, Severe Tropical Owen strengthened to a category three off the coast of the Northern Territory with favorable conditions for an intensification into a category four.
Rain is already falling almost in the greater part of Melbourne, & # 39; Metro Trains tweeted
A warning for severe weather remains in place for Melbourne and most parts of Victoria on Thursday afternoon
Laura Boekel of the Meteorology Office said the cyclone was expected to make a U-turn in the Gulf of Carpentaria on Thursday before it reached the Northern Territory.
& # 39; The confidence we have during the turn is very high, but if it gets a little slower or faster, it will affect the coastline in different ways, & # 39; she said.
This may mean that people are moved to emergency shelters, schools and government buildings are closed and evacuations are being carried out.
There was a cyclone warning from Groote Eylandt in the Northern Territory to Burketown in Queensland.
Cyclone Owen continues to build strength as he returns to the Queensland side of the Gulf of Carpentaria
Other communities, including Borroloola and Numbulwar, were advised to activate cyclone plans.
Residents between the border between Queensland and Northern Territory were warned to prepare for stormy winds of up to 224 km / h, with people on Mornington Island, 470 km north of Mount Isa, evacuating as a precaution.
It was expected that destructive winds with gusts of up to 130 km / h would develop along the coast near the Northern Territory and the Queensland border on Thursday.
It was expected that gases up to 90 km / h would hit Townsville in Queensland and heavy rainfall would lead to flash overflows.
The city of Queensland would receive between 120 mm and 200 mm of rain on Saturday.
A low pressure system on Thursday in the north of Victoria and the south of New South Wales.
What is really interesting is how the two systems are connected by the upper trough, & # 39; told BOM's extreme weather system manager, James Taylor, to the ABC.
& # 39; It will be the upper trough that develops the low upper southeastern Victoria that pulls Tropical Cyclone Owen more to the east and probably south-east during the weekend.
"That creates a potential threat to large parts of Queensland's eastern coast, particularly by sudden floods," Taylor said.
He said that the trench drew moisture from the tropics and Cyclone Owen on Thursday and Friday.
South Queensland will experience intense weather due to a zombie cyclone in the north of the country
The system can draw moisture to the south, creating a large bundle of clouds with heavy thunderstorms along a large part of the east of Australia.
Heavy rainfall related to the cloud band seems likely to affect Victoria on Thursday and then Friday to the south.
Southeastern Southeast Australia and the north and east of Tasmania may also be affected by heavy rainfall over the next few days, Taylor said.
Severe thunderstorms in the cloud zone were predicted for the east of New South Wales, although the associated heavy rainfall was probably sporadic in nature.
The heavy thunderstorms this week to the east coast were expected to be the worst that the coastline had seen in nine months.
Predictors warned that it is the most intense weather event since March and meteorologist Rob Sharpe said the worst of this Thursday will be felt.
Cyclone Owen, which was redeveloped into a category one system on Tuesday, ripped out trees during his path of destruction
Residents in the north of Queensland have also been warned that Cyclone Owen has to redefine itself into a category three system
Cyclone Owen (photo) pulls back on his journey through the Gulf of Carpentaria
Elsewhere in Australia Canberra can storm between Thursday and Saturday and expect more than 55 mm of rain.
Broken Hill is expected to reach a peak of 38C before the cold front and the low pressure system on Thursday lowered the temperature to 25C.
It was also predicted that Brisbane would get up to 100 mm of rain during the week.
Owen was previously a Zombie Cyclone & # 39; because it was brought back to life because it collected power over hot water in the Gulf of Carpentaria.
Category-three cyclones can break down roofs of houses, destroy devastating properties and trees and flatten high-voltage lines.
There was a considerable risk of falling trees and debris and the local population was encouraged to plan alternative accommodation.
The Bureau of Meteorology (BOM) warned of highly destructive & # 39; wind by the time the cyclone hits the capacity, with & # 39; serious and comprehensive & # 39; damage is a very real possibility.
Heavy rainfall and flash nuisance experienced in the coastal areas and adjacent areas inland between Port Douglas and Ingham
& # 39; Little calm after the storm & # 39 ;, a comment next to this photo of Four Mile Beach in the Port of Queensland, Port Douglas
Heavy rainfall hit Port Douglas on Tuesday, with more ferocious weather on the east coast of Australia this week
Queensland & # 39; s Palm Cove got a short delay before the ex-tropical cyclone Owen redeveloped into a category one system
THE WEATHER FORECAST OF AUSTRALIA
Thursday: Min 20, Max 26, Storm Thursday: Min 21, Max 23, Storm
Friday: Min 21, Max 28, Rain Friday: Min 18, Max 22, Rain
Saturday: Min 21, Max 27, Rain Saturday: Min 15, Max 25, Storm
Thursday: min. 20, max. 31, sunny Thursday: min. 14, max. 29, rain
Friday: Min 22, Max 30, Storm Friday: Min 12, Max 20, Rain
Saturday: Min 22, Max 29, Storm Saturday: Min 15, Max 24, Regen
Thursday: Min 28, Max 34, Rain Thursday: Min 16, Max 33, Sunny
Friday: Min. 27, Max. 33, Storm Friday: Min. 21, Max. 38, Sunny
Saturday: Min 26, Max 33, Storm Saturday: Min 21, Max 32, cloudy
Thursday: Min 17, Max 26, Storm Thursday: Min 15, Max 23, Rain
Friday: Min 16, Max 26, Rain Friday: Min 16, Max 22, Cloud
Saturday: minus 15, max. 28, rain Saturday: minus 15, max. 20, rain
Source: Bureau of Meteorology