The clean-up is under way after a series of intense storms pummelled parts of Sydney, felling powerlines and trees.
One man died when the car he was travelling in was struck by a large tree at Emu Plains on Thursday.
The 60-year-old female driver of the car was taken to hospital in a critical condition with pelvic and abdominal injuries but is now in a stable condition, a hospital spokeswoman says.
Lightning strikes sparked three fires in the Blue Mountains and is also believed to be responsible for a fire at a power station.
