More than 300,000 properties are without power as a tropical storm edges closer to Australia’s east coast, lashing the region with heavy rain.

Storm Alfred has been downgraded from a cyclone to a tropical low, but local authorities have warned that the threat it poses is “not over”.

Violent winds have already downed trees and power lines, with roads flooded in low-lying areas as the storm approaches landfall. Alfred is forecast to hit the coast near Brisbane before moving further inward later on Saturday.

Tens of thousands of people have been told to evacuate from the storm’s path, while others have been urged to stay indoors.

Four million people across Queensland and northern New South Wales are in the firing line of the storm, with dozens of weather warnings in place across both areas.

The emergency services say they are working with energy companies, after some residents were told they could be without power for days.

Around 287,000 customers are experiencing outages in south east Queensland, according to energy provider Energex, while Essential Energy said more than 42,600 homes and businesses in New South Wales had experienced blackouts.

People in Brisbane, Queensland’s capital, went to bed on Friday bracing for strong winds and heavy rain.

They woke up on Saturday to learn that the cyclone had been downgraded and the city would escape the worst of the weather.

But the danger’s not over in other parts of southeastern Queensland and northern New South Wales.

Prime Minister Anthony Albanese has said “the worst is yet to come”, and along the Gold Coast, which has been pummelled by bad weather the past few days, conditions are still pretty extreme.

There is driving rain and strong winds. There are power lines down, hundreds of trees have blown over in gardens, parks and along the main roads. There is lots of debris and emergency services have sectioned off areas most at risk.

The approaching storm has already damaged holiday apartments at Labrador on the Gold Coast. © EPA

“This emergency is not over,” said New South Wales state premier Chris Minns, adding that it is “crucially important” that the public does not “dismiss” the storm.

“It really doesn’t matter to us whether it’s been downgraded from a tropical cyclone to a weather event,” he said.

The state’s emergency service operations commander, Stuart Fisher, warned people not to be “complacent” and said authorities in the region expect flooding to continue over the next few days.

As the storm has edged closer to landfall, nearly 1,000 schools have closed, public transport has been suspended and airports are shut. Elective surgeries have also been cancelled.

Flights are not expected to resume until Sunday at the earliest.

The BBC has spoken to several people from Brisbane’s homeless community, who have taken refuge at Emmanuel City Mission, which has become a round-the-clock shelter.

At the Treasure Island Holiday Park in the Gold Coast, just north of Surfer’s Paradise, a gum tree had come down between two cabins, damaging a third. Nearby, a boat was half submerged in one of the canals a block away from the beach.

On the coast itself, many paths down to the beach are now unpassable. Instead, there’s a sudden drop to the ocean where the powerful waves have eaten away at the sand.

But the clean-up operation won’t happen for a few days – the wind is still powerful and there’s driving rain.

Residents are starting to venture out to look at the damage, but plenty are remaining indoors to keep themselves safe.