A land and air search was sparked after a man fell overboard during a once in a decade storm near Mandurah on Monday.
The wild storm had lashed a significant area of Western Australia from Sunday, bringing up to 130 kilometre per hour winds and large swells, which battered the state’s coastline, ripped roofs from homes and left thousands without power.
High tides saw waves crash over jetties and water surge up beach pathways.
The police air wing and ocean units were deployed to search Dawesville waters including Collins Pool and the Peel Inlet after a houseboat was found with no one on board about 2pm.
Seven said a man found the houseboat running, with a jet ski being towed behind, after it came floating close to his mooring.
It’s understood the houseboat’s skipper was washed overboard when he went to adjusted the tow rope during the treacherous conditions.
The skipper was left in the water as the boat continued on without him.
The man who found the vessel took it to nearby Port Bouvard Marina where he contacted police.
An extensive search was sparked with the man located near Point Grey sometime later.
The 57-year-old was taken to Peel Health Campus where he has since been released.
Meanwhile, hours earlier, water police were seen charging through waves off Dawesville after reports a car had crashed into waters off Wannanup.
Police discovered it was an abandoned vehicle which they believed had been pushed into the water.
In Rockingham, a buoy washed ashore and parts of a footpath eroded away along Arcadia Drive.
Arcadia Drive between Penguin and Mersey Roads will remain closed for some time.
A severe weather warning remains in place for the lower part of the state.
Since 8am Sunday, the State Emergency service has responded to more than 500 calls for help.