A four-year-old Melbourne boy is clinging to life after a tree crashed onto his family's car amid wild winds of more than 100km/h.
His mother, named by media as Angie Suryadi, died when the tree came down on the car at Fernshaw on Friday, as storms lashed the state.
Oliver, four, was taken to the Royal Children's Hospital in a critical condition, and is understood to be in an induced coma.
His five-year-old brother, Johnathon, was also taken to hospital before being discharged on Saturday.
Their dad, 41-year-old Arnold Adiatiasvara, remains at the Alfred hospital in a stable condition.
"The whole family are just (a) beautiful family," Lifo Wijaya, from the family's Australia for Christ Church at Rowville, told Nine News on Saturday.
"We believe in miracles so we really appreciate people praying for this family."
Hundreds of people called the State Emergency Service for help during Friday's storms, mostly for fallen trees, as the damaging cold front swept the state.
Rough seas also swept away part of Frankston's pier in Melbourne's southeast before it washed up on a nearby beach.
Winds eased on Saturday but conditions remained gusty across much of the state, with the State Emergency Service receiving 166 calls for help in 24 hours.
Wilsons Promontory recorded winds of 119km/h, Gabo Island 98km/h and Port Phillip Bay 83km/h.
Snow fell down to about 500m, with reports of snow at locations including Mount Dandenong and Mount Macedon.
Conditions are expected to remain icy on Sunday as another cold front moves across the state.
Melbourne is forecast to reach a top of just 12C, with maximum temperatures over alpine as low as -3C.
A severe weather warning remains in place for the far east of the state.
Australian Associated Press