Western Power says about 300 homes and businesses in Mullewa lost power during a storm overnight.
Services are expected to be restored by mid-morning.
Western Power crews are now bracing for a second cold front later today or into the evening.
If anyone sees fallen powerlines, they are urged to contact Western Power.
© ABC 2013
16:23 EDT Tropical Cyclone Kate has only caused minor damage on Cocos Islands after passing to the north of the tiny community, more than 2,000 kilometres off the Western Australian coast.