According to the Bureau of Meteorology, the temperature in Newcastle is expected to reach a top of 40 degrees on Thursday.

There is also a 40 per cent chance of a storm in the afternoon and evening across the Hunter.

A total fire ban helps limit the potential of fires developing.

During a total fire ban, residents cannot light, maintain or use a fire in the open, or carry out any activity in the open that causes, or is likely to cause, a fire.

Works like welding or any activity that produces a spark or flame are also not allowed in the open.

Potential bushfire damage is increased on very high to extreme fire days, when the weather is very hot, dry and windy.

A total fire ban attempts to reduce the risk of fires damaging or destroying life, property and the environment.

Permits are suspended on days of total fire ban.

Permits may resume after the total fire ban is lifted, as long as the permit hasn't expired.

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