Parts of the city are still blacked out, schools are closed, traffic lights are out and insurers face a damage bill into the millions after a freak storm battered the city last night.
85,000 homes remain without power this morning, after more than 150,000 houses were blacked out at the height of the storm last night.
The blackouts are set to hit peak hour traffic this morning, with 66 sets of light still out across the city.
Police will be controlling traffic at major intersections affected, including parts of Albany Highway, Reid Highway, Orrong Road, Wanneroo Road, Roe Highway, Scarborough Beach Road and Leach Highway.
Drivers have also been warned to avoid Mounts Bay Road after the downpour triggered a mini-landslide from Kings Park. The road is closed from Winthrop Avenue to the city in the eastbound direction. The westbound lanes remain open.
"We are urging people to take extra care this morning," Main Roads spokewoman Stephanie Dahl said.
These sentiments have been echoed by the RAC which warns the long dry spell has created dangerous driving conditions.
"A long dry spell such as the one we've experienced in Perth leads to a build up of oil and grease on the roads," RAC spokesman Matt Brown said.
"When it rains for the first time, the water brings this to the surface and the roads become particularly slippery.
"The rain and wet roads will affect peak hour traffic and make conditions a lot more dangerous than usual."
Mr Brown urged commuters to be patient and adapt their driving behaviour to the conditions.
Trail of destruction
The biggest storm to hit Perth in 50 years caused massive destruction across the city.
A Fire and Emergency Services Authority spokeswoman said there had been widespread damage across the metropolitan area to residential and commercial premises and infrastructure.
The authority was struggling to come to grips with how much damage had occurred, but said it had been flooded with calls from residents needing help.
Within a couple of hours of the storm passing through, residents flooded FESA helplines desperate for assistance. Roads were flooded throughout the city and traffic heading home was placed in a standstill.
A landslide through Kings Park down to Mounts Bay Road has buried and crushed two cars, with police unable to confirm whether there were any occupants inside. The cars were in parking bays, so police were hopeful nobody was inside.
The landslide went through the Adelphi apartments, which have been evacuated. The power and gas at the apartments has been turned off. Emergency services have sealed off Jacob's Ladder because foundations were washed away in the storm.
Homes have been destroyed, with commercial property and infrastructure also damaged after the severe hail storm and 35mm of rain hit the city about 4pm yesterday.
Two storm fronts battered the northern suburbs before heading south towards the city.
A SES spokesman urged people with damage to their homes to call the helpline 132 500 only if the damage was so great they could not fix it themselves. Calls for assistance would be placed in a queue depending on their urgency.
Western Power is urging people to only ring 13 13 51 to report dangerous situations, with the organisation inundated with calls about power outages.
Planes were stranded at both Perth airports after the deluge caused parts of the terminal roof to collapse. Most flights had returned to schedule today, but travellers are advised to contact their airline for updated information.
The State Emergency Service has had reports of structural damage to several major hospitals and aged care facilities, and elective surgery has been cancelled today.
Major flooding was recorded on major roads throughout the city, including Marmion Avenue, the Mitchell Freeway, the Mt Lawley subway, Wanneroo Road and Pinjar Road.
Schools closed
A department of education spokeswoman said Shenton College, Ocean Reef High School and Mindari Senior College would be closed today due to severe flooding.
Eighty per cent of Shenton College classrooms were flooded and 70 per cent of Ocean Reef SHS had flooded.
"Multiple ceilings have collapsed at Ocean Reef SHS," the spokewoman said.
The library at University of Western Australia is understood to have been flooded causing hundreds of thousands of dollars damage. Windows at historic Winthrop Hall were also blown out by the storm, and the University's theatre venues suffered damaging flooding.
Funerals canceled
Metropolitan Cemeteries spokesman Andrew Fox said all funerals will be cancelled today.
"We are trying to get hold of all funeral directors because at the moment all funeral at all metro cemeteries are cancelled," Mr Fox said.
"We don’t won't people to show up because it's not going to be happening.
"We don't know (how many funerals will be cancelled) ... once we are able to get in and see how big the damage is (then we will know)."
FESA warning
Earlier yesterday, FESA issued a severe storm warning for a semicircle bounded by the Midwest tourist town of Kalbarri, through the Wheatbelt towns of Mt Magnet, Merredin and Katanning, to the Peel region holiday spot of Mandurah.
Cool air in the upper atmosphere drifted over WA during the end of the weekend, enhancing a surface trough that was already firing storms through the interior.
The rain has given a much needed boost to the parched state's water supplies. In the three months of summer, which ended on February 28, Perth received a meagre 0.2mm of rainfall.
Up until yesterday Perth had recorded no rainfall this month. The average rainfall for March is 21mm.
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