
Twenty-seven people were killed and the damage totalled hundreds of millions of dollars, making it one of the worst natural disasters in this country's history.
The death and destruction that day got emergency planners thinking about better ways to warn the public in the event of a disaster.
The Alberta Emergency Public Warning System was developed as a result of the storm.
Tune in to The Weather Network Tuesday, July 31 for an in-depth look at the Edmonton tornado.