About 5000 homes remain without power as South Australians start cleaning up after days of fierce storms.
A brutal cold front has brought harsh conditions to the Adelaide Hills and the Fleurieu Peninsula, with wild winds ravaging the state's power network, blowing trees onto homes and sweeping away tin sheds.
The Bureau of Meteorology says the worst of the weather is over, but it is closely monitoring the situation.
The severe weather put huge pressure on emergency services including the SES, which logged 1700 calls for help since Saturday night - 1000 on Tuesday alone.
But there have only been three calls since midnight, with the cold front having moved into Victoria.
SES state duty officer Aaron Blasch says the number of trees brought down, particularly in the Mount Lofty ranges and on the Fleurieu Peninsula, was staggering.
The SES hasn't seen such a high number of calls for help for years.
"... and 80 per cent of those calls were for trees down and that, in itself, is quite a spectacular number as well," Mr Blasch told ABC radio.
SA Power Networks says downed trees played havoc with the power network, particularly in the Adelaide Hills but also across large parts of metropolitan Adelaide.
A total of 120,000 customers were cut off during the severe weather, but that's since been reduced to about 5000.
"I think this will be similar to, if not worse, than the one we had in the eastern foothills in 2014, which was probably the worst storm damage we've seen in living memory," SA Power Networks Paul Roberts has told the ABC.
He said 120,000 customers is a lot out of 850,000.
Adelaide had its coldest day in two years with a top of 11C on Tuesday, bringing a light dusting of snow to the Adelaide Hills and leaving black ice across some roads.
The mercury is expected to climb a little higher in the capital on Wednesday, with a top temperature of 13C forecast.
But the bureau continues to warn sheep farmers in the Mount Lofty Ranges, and in other parts of the state, that they could lose stock to the cold conditions.
A gale warning remains current for the Lower South East Coast, and a strong wind warning is current for the Central Coast, South Central Coast and Upper South East Coast.
Snow for Canberra and Tasmania
Canberra has woken up to a light flutter of snow this morning, as strong winds deliver a wintry chill.
Forecasters say the wind chill made the temperature feel more like minus 7C, thanks to northwesterly winds.
Canberra's expected to receive one to two centimetres of snow until mid-morning, when the weather warms up to a maximum of 7C.
Blizzards are also possible for the Snowy Mountains in areas above 1700m, the bureau has warned.
Up to 70cm of fresh snow has fallen at Thredbo ski resort overnight while Canberra, Oberon and the Mt Victoria regions also received a light dusting.
"We had a strong cold front move across the state overnight and that brought a very cold air mass," BOM's Elenka Duma told AAP on Wednesday.
Low-level snowfall across Tasmania has reached beaches near Hobart where rough overnight weather has left
thousands of properties without power.
The southern capital is forecast to reach a maximum of just 8C on Wednesday as TasNetworks crews continue working to restore electricity supply to an estimated 7000 customers across the state.
"Our crews stopped working at 1am because it wasn't safe to do so because of the winds," a spokeswoman told ABC radio.
Chill for NSW and Victoria
Sydneysiders have woken to a chilly blast of winter and ice-cold winds after a powerful cold front moved across the southern part of the state overnight.
The Bureau of Meteorology has issued a severe weather warning as damaging winds of up to 90km/h buffet the state, and has warned of possible blizzards for the Snowy Mountains on Wednesday.
While morning temperatures in Sydney were at 10C, the bureau says the wind-chill factor makes it feel a lot colder, with temperatures as low as 1C at Observatory Hill in the city, and minus 1C at Sydney Airport.
Sydneysiders commuting into work on Wednesday morning copped a blast in the face, with the wind chill factor sending temperatures plummeting from 10 degrees to what felt like 1 degrees at Observatory Hill in the city, and - 1 degrees at Sydney Airport.
"In terms of the weather, we're expecting generally sunny conditions, but it's going to be cold and feel a lot colder with the wind factor," Ms Duma told AAP.
Social media is full of chatter about the "insidious cold wind".
"Sydney, we need to talk about this wind. It's just not on," one Twitter user complained.
Meanwhile the National Parks Service of NSW is recommending people consider postponing country travel until conditions improve.
The bureau says the winds will gradually ease off by Wednesday night, but cool temperatures will linger until the end of the week with warm conditions to return by the weekend.
The bitter cold is set to continue for Victoria but destructive winds will dissipate.
The Bureau of Meteorology predicts this morning will experience the worst of the weather, with temperatures close to zero expected across Victoria and strong winds and thunderstorms hitting coastal areas.
The cold front is set to head east this afternoon, with conditions easing.
