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.
Rumours Rockingham councillor Ryan Robertson to be announced as Liberal candidate for Secret Harbour by-election
Baldivis man fined for throwing ex-wife's elderly dog
Concerns for missing woman last seen in Baldivis
Peel Cavaliers break nine-year drought to win Country Championships
City tees up new vision for Kwinana Golf Course
Warnbro man charged with more child abuse, animal cruelty offences
Teen threatened, robbed by offenders on e-scooter in Mandurah
Labor candidate for Secret Harbour Georgia Tree vows to fight for locals
Safety Bay man arrested after Perth police pursuit comes to crashing end