Perth traffic: Wet weather causes chaos on Roe Highway, Great Eastern Highway in Midland and Kwinana Freeway

A severe thunderstorm has caused traffic chaos across Perth, flooding busy roads and bringing down trees.

Cars are backed up from the Roe Highway northbound exit to Great Eastern Highway in Midland after damaging winds brought down a tree which is now partially blocking the road.

Incident response are on site and motorists are being urged to proceed with caution.

In another part of Midland, rain has flooded the roads forcing authorities to close Lloyd Street in both directions as they wait for the flooding to subside.

The traffic signals are the intersection of Clayton Street and Lloyd Street are flashing yellow and police are on site direction traffic.

Traffic is heavy in the area and Main Roads WA has told drivers to avoid the area.

On Kwinana Freeway northbound, a vehicle rollover at Thomas Road in Bertram has caused heavy congestion back to Mortimer Road.

The right lane has been blocked and an ambulance is on the scene.