There are planned hazard reduction burns planned for Monday 14th August north of Wollongong. If the weather is bad the burns will take place on Tuesday or Wednesday.
The burns are planned in The Royal National Park just past Helensburgh.
Lanes will be closed at Sir Bertram Stevens Drive between Mckell Avenue and Wattamolla Road.
Stop/Slow traffic control will be in place so provide extra travel time.
Residents of Waterfall and Helensburgh who have trouble breathing should try and stay indoors.