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December is commencing on a volatile note across eastern Australia with flooding rain and powerful thunderstorms expected into the early week.
A potent storm clashing with warm and humid air will continue to cause thunderstorms to rumble across northeast New South Wales and Queensland through Monday.
Residents should prepare for disruptions to travel and outdoor activities. The strongest thunderstorms may be capable of causing damage.
The same storm system prompted officials to cancel the Taste of Melbourne sessions from Friday to Sunday.
Train service was affected in Victoria, while stretches of highway were closed for a time, according to the Australian Broadcasting Corporation (ABC).
The focus of heavy rain and thunderstorms will move into eastern Queensland and northeast New South Wales on Monday.
Drenching and locally severe thunderstorms are expected to fire in eastern Queensland and far northeast New South Wales on Monday. In addition to the risk for flash flooding and local damaging winds, the strongest thunderstorms can produce hail.
Anyone with outdoor plans in Brisbane, the Gold Coast, Biloela and Emerald is urged to monitor cell phones and weather radios and be prepared to seek shelter. As soon as thunder is heard, the risk of being struck by lightning is present.
The end of adverse weather across eastern Australia may not come with the close of Monday.
Heavy rain is also expected to fall in southeast New South Wales, mostly to the south of Sydney from Monday into Tuesday. Isolated rainfall totals of 50-100 mm (2-4 inches) may lead to flooding in areas such as Nowra ad Moruya.
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