A deep, polar low is predicted to sweep across Southeast Australia over the next few days, resulting in a cold, wet and windy hazard. Heavy rains are expected in some areas, while Melbourne can experience its coldest April day in 60 years.
In the southern Indian Ocean, a cold front forms, driven by a deep polar hollow.
Up to 30 cm of snow is expected in the alpine regions of Canberra, Victoria, New South Wales and Tasmania on April 30.
In addition to rain and snow, hail is also expected in the southeastern states, including Victoria.