Warnings issued as wild thunderstorms expected to sweep over South Australia, Victoria and NSW

Meteorologists say major population centres including Melbourne, Adelaide and Canberra should expect power outages and dangerous driving conditions

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Millions of Australians are bracing for power outages and dangerous driving conditions as wild thunderstorms sweep across three states.

Thunderstorms were developing over Adelaide and south-east South Australia on Sunday and were expected to track across large swathes of New South Wales and Victoria during the afternoon and evening.

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