Scorching heat and dangerous fire conditions are sweeping across eastern Australia, with some areas predicted to swelter as temperatures push into the mid-40s.
Hot, dry, windy conditions have been building across the nation since Christmas Eve, fuelling bushfires, including .
Birdsville, in south-west Queensland, recorded 47.2C on Boxing Day, the nation's highest temperature, while Moomba in South Australia hit 45.5C.
The extreme conditions have complicated firefighting efforts in the Grampians, where wind gusts reached 95km/h.
Sweltering temperatures and high winds have fuelled bushfires in the Grampians. Source: AAP / State Control Centre
However, the weather bureau said the change did not bring any relief for firefighters in the form of rain.
Bureau of Meteorology's (BoM) senior meteorologist Jonathan How said: "No rainfall was observed across the Grampians' northern fire sites with this system."
The potentially dangerous weather pattern has now shifted north-east, with Sydney facing extreme fire danger ratings on Friday.
Western Sydney is bracing for temperatures in the low 40s, while coastal areas expect high 30s.
"With that heat and also very dry winds coming through from inland areas, we are expecting extreme fire dangers for Sydney and Hunter as well as the north-western slopes of New South Wales," How said.
A total fire ban is in place for those areas.
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Queensland isn't being spared, with Brisbane set to peak at 37C on Saturday and the city's western suburbs potentially reaching 40C.
The BoM warns of "low to locally severe intensity heatwave conditions" stretching along Queensland's east coast.
A cool change is offering relief to southern states, with temperatures dropping 10-15 degrees in Victoria and SA later in the weekend.
Melbourne and Adelaide are expecting much milder conditions of about 22C on Friday.
The BoM is urging residents to stay updated on local fire authority advice and to check current conditions.
