Twenty million Australians will shiver all week when an Arctic storm brings damaging winds, frigid temperatures, torrential rain, flooding and huge piles of snow.
The east and south of the country will bear the brunt of the wild weather, with parts of NSW expected to experience the heaviest amount of snow in six years.
Harmful wind warnings have been issued off the coast of Victoria and South Australia, stretching from Falls Creek near the NSW border to Port Lincoln, west of Adelaide.
Major flood warnings have also been issued for the Gippsland region of Victoria and parts of the Northeast.
Blizzards will hit New South Wales and can be seen as a ‘major winter storm’ across the country from Tuesday into northern Queensland.
Australians are in for a miserable week with predicted cold temperatures and large amounts of snow
Most of Australia is waking up to the cold on Wednesday with NSW and the ACT seeing temperatures up to 10C below average
The wild weather is being brought on by a powerful cold front pushing up from the Southern Ocean on Monday, with high winds giving way to rain, thunderstorms and small hail, the Bureau of Meteorology said.
For NSW and the ACT, temperatures in areas such as the Northern Plateaus will drop as much as 10C below average in the coming days.
Heavy snowfall of approximately 20cm is expected in the Northern Tablelands, Central Tablelands and Southern Ranges from Wednesday and Thursday.
Forecasters have warned that as much as 100cm of snow could fall in the Alpine regions of Victoria and New South Wales over the next 10 days.
Snow is likely to fall as low as 800m and can fall as far as 500m, including areas in NSW such as Oberon, Orange, Armidale and the Blue Mountains.
Melburnians face a cold and miserable week with heavy rain forecast and temperatures to reach a maximum of just 16C. reach
In the photo: a cold front moves over the east coast of Australia on Monday. From Tuesday it will be freezing temperatures in the country
Heavy rainfall is also expected in northern NSW and southeastern Queensland – at least a month of rain in just two days each year.
BoM senior meteorologist Sarah Scully told Daily Mail Australia that the heaviest rainfall appears to be concentrated in eastern Victoria and the coastal areas of southern NSW and adjacent inland areas.
“Potential precipitation totals could exceed 100mm, with Wednesday and Thursday being the wettest days,” she said.
Snow can also be seen in South Australia’s Flinders Ranges, while thunderstorms with a chance of hail will also sweep across the state.
A severe weather warning has been issued in Victoria for damaging winds around the southwest coast and western mountain ranges.
Flooding is expected in the northeast of the state and in the Gippsland region during Wednesday and Thursday.
In northern Queensland, locals living in the south east of the state can experience wind gusts of up to 110 km/h, with snow also on the way for the Queensland-NSW border.
Pictured: A woman enjoying the snow at Perisher, in southwestern New South Wales. The region is getting more snow this week
Meanwhile, on the other side of the country, Western Australia has a wet and miserable week ahead.
From Wednesday, heavy rains of up to 100 meters are possible for coastal areas along the west coast, including suburbs such as Denham and Mardie.
More isolated waterfalls of up to 65mm are expected to flow between Exmouth and Karratha on Thursday.
For the capitals, Sydney has a rainy end to the week with temperatures reaching a maximum of 14C on Thursday.
Melbourne will also be hit by heavy rain for the rest of the week, with the mercury only rising to a maximum of 16C.
The maximum temperature in Hobart will reach just 11C this Wednesday and Brisbane will reach 18C.
In Adelaide it will hit 14C on Wednesday and people in Canberra will be shivering all day with temperatures of 9C.
Residents of Perth will see storms develop on Thursday with scattered rain on Friday and Saturday, while people in Darwin will experience low temperatures of just 22C and sunshine.
WEATHER FORECAST IN YOUR CITY
Wednesday: 9C, Max: 16C
Thursday: 7C, Max 14C
Friday: 7C, Max: 17C
Saturday: 9C, Max: 19C
Sunday: 10C; Maximum: 20C
Wednesday: 7C, Max: 13C
Thursday: 9C, Max: 15C
Friday: 10C, Max: 15C
Saturday: 11C, Max: 15C
Sunday: 9C; Maximum: 15C
Wednesday: 13C, Max: 18C
Thursday: 8C, Max: 18C
Friday: 8C, Max: 19C
Saturday: 8C, Max: 20C
Sunday: 8C; Maximum: 21C
Wednesday: 22C, Max: 32C
Thursday: 20C, Max: 31C
Friday: 18C, Max: 30C
Saturday: 18C, Max: 31C
Sunday: 19C; Maximum: 31C
Wednesday: 9C, Max: 11C
Thursday: 8C, Max: 13C
Friday: 9C, Max: 14C
Saturday: 11C, Max: 15C
Sunday: 11C; Maximum: 14C
Wednesday: 10C, Max: 18C
Thursday: 12C, Max: 22C
Friday: 11C, Max: 22C
Saturday: 9C, Max: 20C
Sunday: 9C; Maximum: 19C
Wednesday: 8C, Max: 14C
Thursday: 9C, Max: 16C
Friday: 8C, Max: 16C
Saturday: 9C, Max: 18C
Sunday: 11C; Maximum: 19C
Wednesday: 1C, Max: 9C
Thursday: -1C, Max: 10C
Friday: 2C, Max: 14C
Saturday: 1C, Max: 13C
Sunday: 2C; Maximum: 15C
Source: Bureau of Meteorology Australia