Around 50,000 homes were left in the dark this morning.
21,000 customers still remain without power as a result of wet weather, which damaged around 100 power poles.
The outage has affected those in Mandurah, up to Bullsbrook.
It is believed Western Power are working to fix the lines, with their priority to make the affected areas safe before restoring power.
The restoration time is unknown.
PIC: Western Power.
Severe thunderstorm warning cancelled for Mandurah, Bunbury
A severe thunderstorm warning has been cancelled for parts of the Lower West and South West including Mandurah and Bunbury.
Fortnightly red bin collections to remain in the City of Rockingham after council rejects motion
Fortnightly red bin collections in the City of Rockingham are here to stay after council voted against a motion to reinstate weekly collections.
Rate rises on the way for Rockingham, Mandurah ratepayers
Rate rises are on the way for Rockingham and Mandurah ratepayers.
Harvey Police call on witnesses to serious crash
Police are asking for the public's help as they investigate a serious crash in Harvey.
Men allegedly under the influence of alcohol when boat crashed under Mandurah Estuary Bridge
Two men have been charged over an alleged boat crash in Mandurah.
Works underway on 26 new social homes in Kwinana
Construction is underway on 26 new social homes in Kwinana.
Kwinana Adventure Park splash pad to undergo $2 million upgrade
The splash pad at the popular Kwinana Adventure Park is set to undergo a $2 million upgrade.
Mandurah Wildlife Rehabilitation Centre stops accepting seabirds due to bird flu risk
A wildlife rehabilitation centre in Mandurah has stopped accepting injured or sick seabirds due to the current risk of bird flu.
Mandurah Detectives recognised for dismantling organised crime network
Mandurah Detectives have been recognised for their work in dismantling an organised criminal network.