Extreme weather is triggering warnings across the country today. There are multiple fire emergencies in Victoria, while a strong heatwave will continue its grip both on the entire south-east of the country today. Further north, tropical north Queensland faces heavy rainfall and the threat of further floods, and even the risk of a cyclone.

A blistering heat trough threatens to push mercury beyond 40C across four states while Queensland battles flood warnings.

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Hello, it's Miriam at the Bureau, with your national weather forecast for tomorrow, Thursday the 25th of December, Christmas Day. And we'll also take

Tropical Cyclone Hayley threatens one state with destructive winds, while another battles a monsoon causing heavy rainfall and floods.

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