The premier of New South Wales state Barry O'Farrell declared a state of emergency.
The fires have killed one man, destroyed a total of 208 homes in New South Wales state and damaged another 122 since Thursday, the Rural Fire Service said.
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Patients are being left "belittled and bewildered" as medical staff try to deal with overstretched systems, the BMA will warn.
One tenant confronted the leader of Camden Council as tensions rise in evacuation of Chalcots estate.
The teenager, who cannot be named for legal reasons, is alleged to have attacked the girl in a Manchester park on Saturday evening.