Here’s how a complex low-pressure system sent temperatures plummeting

New South Wales, Victoria, Tasmania and South Australia are currently affected by a massive complex low pressure system, dropping temperatures and bringing rain, hail, wind and snow.

The complex low weather system currently swirling over south-eastern Australia.

While complex low pressure systems like this come along every year or so, some Australians may be feeling whiplash after a particularly warm autumn.

Typically, as Victoria and Tasmania head into winter we see cold fronts that move from west to east, generating rain and thunderstorms. This weather system started off like that, but developed into a complex low that will stay with us for the rest of the week.

Read the piece on The Conversation by a Senior Meteorologist, Australian Bureau of Meteorology, Adam Morgan - “Here’s how a complex low-pressure system sent temperatures plummeting.”