Severe thunderstorms occurred on the afternoon and evening of Monday 22 March 2010 in the central west, lower west, and adjacent parts of the south-west great southern and central wheat belt districts of Western Australia.

Severe storms moved through Perth between 3.30 pm and 6 pm with large hail at record levels, heavy rain and severe winds that resulted in considerable damage. The storm was responsible for record numbers of power outages more than 150,000 properties were without power at the peak, 300 hazard incidents and affected flight, train and bus services.

The number of requests for assistance from FESA and SES totalled more than 3000, the most significant number since the May 1994 wind storms. Approximately 15 schools in the northern suburbs were closed the following day due to damage, while many hospitals were also damaged. Large hail occurred in a strip from the northern coastal suburbs to south Perth. For many suburbs, particularly from Osborne Park to Crawley, hail from 4-6 cm was large enough to badly damage cars, break car windscreens and windows of houses. Hail blocked gutters and drains worsening the impacts of flooding.

Many properties were inundated with water including the University of Western Australia's library. A landslip at Kings Park caused the evacuation of several apartment towers as mud inundated lower levels threatening their stability. The Insurance Council of Australia estimated the 2010 damage at $1053 million with the 2017 estimated normalised cost at $1.3 billion