Strong westerly winds are expected to fan the flames of bushfires burning across the NSW mid-north coast as total fire bans kick in.

Dozens of blazes are still burning out of control on Friday despite firefighters working around the clock to battle 70 fires overnight.

Three watch and act alerts remain in place on Friday, in Forster, Stockyard Flat and Rumba Dump in the Tapin Tops National Park.

Conditions have eased at Gulf Road in Torrington, Hillville, and Wandsworth, while the threat to homes from a bushfire in the Crowdy Bay National Park area has eased, the NSW Rural Fire Service says.

Five total fire bans are in place for parts of the state Friday.

“With warm & windy conditions continuing tomorrow, Total Fire Bans will be in place for the north of the state,” the fire service tweeted.

Dust is expected to be blown across much of the state’s northeast, and the Central Coast and Newcastle areas over the coming day, it previously warned.

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Residents in fire danger areas are urged to monitor the conditions in case the situation changes.

It comes after a man, aged in his 50s, suffered serious burns to his legs and hands while trying to defend his rural property in Yarrowitch, east of Walcha, on Thursday.

AAP