Hurricane Hazel hit the City of Toronto on October 15, 1954. According to historians, winds reached 124 km/h and over 200 millimetres of rain fell in just 24 hours.
The result of the storm “left 81 dead, nearly 1900 families homeless, and caused between $25 and $100 million in damages (modern-day cost has been estimated at over $1 billion).” (The Canadian Encyclopedia)
In the aftermath of Hurricane Hazel, the City of Toronto created the Toronto Regional Conservation Authority (TRCA) in an effort to manage flood planes and prevent further tradies caused by natural disasters.
caused between $25 and $100 million in damages (modern-day cost has been estimated at over $1 billion).