Parts of Australia will face catastrophic fire conditions on Friday, as heatwaves hit most of the country, creating the most 'significant' conditions since the Black Summer bushfires. Severe to extreme heatwaves have been declared in every state and territory in Australia, except for Queensland, with high temperatures forecast for days. The state of Victoria has declared a total fire ban for Friday with northern areas shutting 450 schools and childcare centres as well as parks, as the fire danger level for the region will be set at 'catastrophic' - the highest level.

One meteorologist told the BBC that the combination of heatwaves and an elevated fire danger pose a risk not seen in years. On Thursday, firefighters battled several fires in Victoria and New South Wales (NSW), with a dozen planes carrying water called in to tackle a large blaze near Wodonga city, according to the ABC. Melbourne experienced its hottest day in six years on Wednesday with a high of 40.9C (105.6F), while some coastal towns in Western Australia hit 49C.

In NSW, the heatwave is expected to peak on Saturday with Sydney facing a high of 42C while areas of South Australia and Western Australia will see temperatures over 40C in the coming days. Friday will be the 'real peak of the current burst of heat,' Angus Hines from Bureau of Meteorology told the BBC. He added that winds will strengthen across Victoria coupled with possible thunderstorms with little rain and dry lightning strikes, raising the fire danger to catastrophic levels for the northern parts of Victoria.

Authorities warned that a catastrophic fire danger rating means potential blazes can be 'unpredictable and uncontrollable.' They urge the community to play their role alongside emergency services to protect lives and property. 'Prepare now and enact your bushfire survival plan. If you are in an area of forecast catastrophic fire danger, leave early to an area with a lower fire risk.' Australia's fire danger ratings scale has four levels, with catastrophic being the highest level, followed by extreme, high and low.