Perth, the capital of Western Australia, has seen 30mm (1.18 inches) of rainfall since the morning of 9 July, while some suburbs got up to 50mm of rain within the first hour of the storm, which resulted in flash flooding, 9News website reported.
Over 500 calls were made to emergency services for help, according to the website.
The Australian Bureau of Meteorology has issued a strong wind warning for the southern coast of Western Australia. At the same time, the severe weather warning for damaging winds and heavy rainfall was cancelled for Perth and its neighbouring areas in the Lower West.