Authorities are expecting the worst as 68 wildfires continue to burn in Australia - 22 of them out of control - and dangerous weather conditions forecast through Thursday.
"There will be a significant impact on populated areas should all these forecasts materialise as is being suggested," Shane Fitzsimmons, New South Wales Rural Fire Service Commissioner, told reporters.
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Temperatures are predicted to reach a high of 23C.
Hunt accused companies of "turning a blind eye" to a generation of children "exposed to harmful emotional side effects" of social media.
Top temperature 24C/75F.