Residents in parts of Yanchep, north of Perth, are being urged to leave immediately as firefighters continue battling a large bushfire.
Authorities say the uncontrolled and unpredictable blaze poses significant risk to homes between the coastal suburb and nearby Two Rocks.
An emergency alert has been issued and residents who cannot leave immediately must prepare to shelter in their homes.
An evacuation centre has opened at Granville Civic Centre in Gingin, along with another at Gumblossom Community Centre.
An emergency alert has been issued for the suburbs of Two Rocks, Eglinton and Yanchep amid hot and windy conditions.
People in Seatrees and Breakwater estates have been advised leaving now would be deadly.
The blaze has burned through more than 1000 hectares in Yanchep National Park and destroyed the Yanchep service station.
Crews are working to strengthen containment lines but warn there is still a possible threat to lives and homes.
There is particular concern about an area within the park which contains peat and other materials that could burn rapidly.
More than 150 firefighters remain at the scene.
The Bureau of Meteorology is forecasting four straight days of 40C or greater from Thursday as a high-pressure system crosses the state.
Perth has never recorded more than two consecutive 40-degree December days, while four straight would equal the record for any month.
Australian Associated Press
