From bushfires to flooding in just days: Wild weather continues in NSW

After devastating bushfires destroyed almost 100 homes in NSW, parts of the state are now preparing for heavy rain and potential flash flooding.

On Tuesday, residents in the NSW Far South Coast town of Tathra faced a massive clean-up after wind gusts of up to 90 km/h pushed the fire straight into the township.

But rain was expected to soak much of the state from Tuesday night over the next seven days. As much as 100mm to 200mm of rain was forecast to be dumped on the Mid North Coast and Hunter Districts on Wednesday and Thursday.

The Bureau of Meteorology has issued an "intense rain" warning for Newcastle, the Central Coast and Lower Hunter.

The Hunter Region in NSW is expecting
The Hunter Region in NSW is expecting

"A coastal trough will develop along the central parts of the coast over the next 24 hours, cradled between two strong high pressure system," the bureau said in a flood watch notice on Tuesday.

"These areas will see some very intense bursts of rain creating dangerous conditions."

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There is a severe weather warning in place for the Central Coast and Newcastle for the next 24 hours and could affect the Manning River, Wallis Lake and Myall River catchments.

Residents have been advised to monitor the weather and be prepared to relocate to higher ground with little notice.

100mm to 200mm of rain is expected to be dumped on the Mid North Coast and Hunter over Wednesday and Thursday. Photo: BOM
100mm to 200mm of rain is expected to be dumped on the Mid North Coast and Hunter over Wednesday and Thursday. Photo: BOM

"Don't drive, ride or walk through flood water. Keep clear of creeks and storm drains," the website said.

Flooding may also occur in western NSW in the Paroo and Warrego River catchment areas from Tuesday night.

This comes after fire crews in Tathra confirmed 69 houses and 30 caravans or cabins were destroyed. A further 39 houses were damaged, with almost 400 saved.

Two firefighters suffered heat exhaustion while a woman in her 40s suffered minor burn injuries.

Prime Minister Malcolm Turnbull was shocked at the destruction.

Ingrid Mitchell and Deb Nave wander through the burnt out remains of their Tathra home. Photo: AAP
Ingrid Mitchell and Deb Nave wander through the burnt out remains of their Tathra home. Photo: AAP

"Thank heaven there have been no lives lost," he told reporters during a visit to the Bega evacuation centre.

Melbourne is expecting a mild week with the chance of showers at the weekend.

Brisbane is experiencing showers throughout the week and Adelaide will be mostly sunny with temperatures in the high 20s.

Two firefighters suffered heat exhaustion while a woman in her 40s suffered minor burn injuries in the NSW fire. Photo: 7 News
Two firefighters suffered heat exhaustion while a woman in her 40s suffered minor burn injuries in the NSW fire. Photo: 7 News