A severe weather warning has been issued for Mandurah and parts of the South West.
According to the Bureau of Meteorology, severe thunderstorms are expected to batter the region over the next several hours.
They are likely to produce damaging winds and heavy rainfall that may lead to flash flooding.
Locations which may be affected include Bunbury, Mandurah, Collie, Rottnest Island, Harvey and Bridgetown.
Early voting for Secret Harbour by-election begins Monday
Welfare concerns for missing Swedish national last seen in Warnbro
Wanted man last seen in Golden Bay
Passenger critically injured in West Pinjarra crash
Unregistered painter fined for requesting hefty deposit from Singleton homeowner and not doing the job
Police hunt driver following dangerous Baldivis pursuit
Welfare concerns for boy last seen at Port Kennedy skate park
Rubbish truck catches fire in Baldivis
Driver injured in bus crash in Rockingham