A blast of cold air from Antarctica is moving up the east coast today, bringing temperatures usually seen in the depths of winter.
It's seen ferocious winds lash South Australia overnight, while more flooding and severe winds are predicted in parts of New South Wales today.
Victorians can expect widespread rain and hail over the state later in the day, with a maximum temperature of 15 Centigrade forecast for the next two days, rising to just 18C on Friday — resembling a forecast Melburnians are more familiar with in June.
The Antarctic blast has seen snow falling in Victorian and NSW's alpine regions, and there's more expected over the coming days.
Rain is forecast for over much of New South Wales today, but it will ease off from tonight, although falls are still expected in the state's south east.
Flash flooding has hit the Riverina and central tablelands, with the Bureau of Meteorology warning rainfall over recent days will lead to major flooding at Gundagai similar to April 1989 levels, which would make it its worst flood in 33 years.
Cold and wet conditions will remain for South Australia, which was lashed with strong winds overnight.
Top End heat
It's a very different picture across northern Australia, where fires have burnt through thousands of hectares of savanna and grazing land.
A heatwave will stick around in the Northern Territory, according to the BOM.
Temperatures in the high 30s and low 40s are set to remain right across the top end until Wednesday.
