Emergency warnings are still in place for residents as firefighters battle to contain a huge bushfire in Perth's north.
The fire has already destroyed at least 10 homes but the number could rise after the blaze broke out near the intersection of Boundary Road and Bustard Road in Mariginiup during scorching conditions on Wednesday morning.
Authorities said there were "favourable conditions" overnight, which has allowed some warnings to be downgraded but there was still a threat to lives and homes.
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Parts of Jandabup, Melaleuca, Wanneroo and Mariginiup in the City Of Wanneroo and Swan are still under threat as of 5.24am (8.24am AEDT).
Residents in those areas are being warned by the Department of Fire and Emergency Services (DFES) to "act immediately to survive".
The advice has been downgraded to watch and act for residents in parts of Mariginiup, Melaleuca, Jandabup, Wanneroo, Sinagra, Ashby, Tapping And Banksia Grove.
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As the situation is constantly changing, residents in the area are advised to stay up to date with the latest emergency warnings and advice on the Emergency WA website.
Nikki Woods from Gingin Volunteer Fire and Rescue described the fire last night as "so fierce and fast-moving".
"It was like fire clouds throwing millions of embers kilometres in front of the fire," she said.
"I've not seen anything like it before."
Incident controller Scott Hares told Today the fire was still "uncontrolled and uncontained" so there was still a high risk to the community.
"The favourable weather conditions overnight with the high humidity and lower winds have allowed us to consolidate our containment lines," Hares said.
He said they were preparing for a south westerly wind change between 10am and 2pm (1pm to 5pm AEDT).
"Our main focus today is to consolidate the containment lines on the north edge of the fire because of those wind changes."
More than 500 people are without electricity and up to 100 transmission lines have been impacted due to the fires across the City of Wanneroo and Swan.
"Parallel with that, we'll look to start reinstatement activity.
"We're cognisant of the fact that the community wants to get back in so we're going to try and do our best to reinstate the essential services."
Department of Communities has set up an Evacuation Centre for people displaced by the fire, and there is an animal evacuation area at the Wanneroo Showgrounds specifically for animals and pets.
A severe heatwave is affecting the state's central west, lower west and south-west areas, including the Perth metropolitan area.
Volunteering WA said it was taking registrations for people to assist fire-affected communities.
It needs volunteers to help with donation sorting, supply delivery and drop off, and welfare support.
DFES said agency members have already been overwhelmed with donation offers for evacuation centres.
"The evacuees, both people and animals, are being provided with everything they need in the short term such as food, clothes and toys," DFES said yesterday.
"We are asking you to please hold onto your donations at this time."
