Gale-force winds have swept through Melbourne overnight, with residents in south-eastern suburbs buffeted most.
Winds of up to 90km/h were felt across the east, including Frankston and St Kilda, Openair Cinemas was forced to cancel a screening for safety reasons.
And this morning some flights were delayed as winds whipped through airports in at least two states.
The State Emergency Service had 48 calls for help from midnight from suburbs as far apart as North Balwyn, Berwick and Carrum Downs, mostly for fallen trees.
An SES spokesman said that more calls for help were likely as residents woke and were able to assess their properties.
Bureau of Meteorology senior forecaster Phil King said the gusty conditions were part of the front that was driving temperatures down.
Plane passengers heading to Sydney are facing delays, with the harbour city’s airport seeing wind gusts of up to 56km/h.
The blustery, westerly winds mean flights, mostly domestic, will be delayed.
A Melbourne Airport spokeswoman said passengers were advised to check with their airlines for the most up-to-date information.
Mr King said 20 millimetres of snow fell at Mt Baw Baw overnight, but snow bunnies will have to act quickly because the cool conditions won't last. Beach weather will return, albeit briefly, this week.
The mercury is tipped to soar to 37 degrees on Saturday - ahead of yet another change, bringing showers and a top of 20 degrees on Sunday.