A mass of hot air from central Australia is sweeping towards Adelaide, Melbourne and Sydney. Picture: Sky News
A mass of hot air from central Australia is sweeping towards Adelaide, Melbourne and Sydney. Picture: Sky News

Spring scorcher about to really kick in

GET ready folks, it's going to be an absolute scorcher for many of us as the hottest November highs in years are tipped for today and tomorrow.

Weather watchers have warned a burst of hot desert air pushing into the south and southeastern capitals will likely now lead to even higher maximum temperatures than originally forecast just days ago.

Experts have now issued fire warnings across the country as gusty conditions combine with temperatures which are tipped to be 10C above average for many of us.

Halloween was pleasant for many of us, but everything begins to change today as hot air that had been plaguing inland Queensland starts making its presence felt a lot further south, via a sojourn into the desert.

Adelaide could top out at 36C today while parts of Sydney could exceed 38C on Friday. Inland areas of South Australia, NSW and Queensland could be even hotter, exceeding 40C.

However, Sky News Weather channel meteorologist Tom Saunders said there is a big shift on the way for southeastern Australia early next week.

He said severe storms, showers and gusty winds could be triggered by a massive band of wet weather which could drench Melbourne, Sydney, Adelaide and Hobart on Monday and Tuesday.

So fans of the heat should make the most of the heatwave kicking in today.

"We're expecting the hottest temperatures since early 2018 (on Thursday and Friday) and some of highest maximum November temperatures for up to three years," Mr Saunders said.

NSW Ambulance chiefs have urged people to take extra care and avoid the heat, especially children and the elderly, as the first heatwave of the season hits the state.

A mass of hot air from Central Australia is seeping towards Adelaide, Melbourne and Sydney. Picture: Sky News
A mass of hot air from Central Australia is seeping towards Adelaide, Melbourne and Sydney. Picture: Sky News

"A mass of hot air in the upper atmosphere has been sitting over the interior. Over the next couple of days that (heat) drifts further south to the South Australian and Victorian coastlines and by Friday will make it all the way to the east coast to send temperatures more than 10C above average in some parts," Mr Saunders said.

In Adelaide expect 36C on Thursday, 39C in Port Augusta and 41C heading north towards the Territory and into Uluru. Melbourne's CBD will peak at 33C, the suburbs will be a degree or two warmer with Mildura on 39C.

Fire danger warnings are likely, Mr Saunders said.

"Winds will average 40km/h so that could mean severe fire danger in the Mallee and some parts of South Australia and fires will be fast moving and difficult to control."

Then, on Friday, it's the turn of NSW. It'll be 35C for Newcastle, the Sydney CBD should see 37C with 39C in Penrith in the western suburbs.

It'll be even hotter inland with Hay expecting 40C. Canberra will be a little lower peaking at 32C.

The Bureau of Meteorology has issued a low intensity heatwave warning for much of the NSW coast including Sydney for Thursday to Saturday. If Sydney does get to 37C it will be its hottest November day for three years.

"Heat can kill which is why it's so important to stay hydrated and look out for the elderly the young and pets," NSW Ambulance chief superintendent Alan Morrison said.

Paramedics treated nearly 4500 people for dehydration between December 2017 and March 2018, and hundreds more for heat exhaustion.

Other capitals should escape the worst of the heat blast. Brisbane will hover around 29C, heading into the low-thirties on the weekend. Perth will be solidly in the mid-twenties while Hobart's maximum for the coming seven days will be 24C on a rainy Saturday as it manages to dodge the hot weather. Up in the tropics, Darwin will be 35C and stormy.

Its job done, the heat will then head off to sea with temperatures plummeting - just in time for the weekend.

"A cooler westerly change will drop temperatures. It will be much cooler but still hot further north."

Adelaide could see the mercury plunge from 36C on Thursday to 21C on Saturday. A similar fall of 15C could occur in Melbourne.

Sydney will go from 37C on Friday to 29C on Saturday. Still beach weather for the Harbour City but look out for the odd shower on the weekend.

Storms continue in central parts of Queensland but the risk of severe weather in those areas is now receding.