Deadly Skies: Canada’s Most Destructive Tornadoes
A tornado is the stuff of nightmares. Amid heavy rain and hail, huge thunderclouds roll in and the skies turn greenish-black. And then a rope-like funnel cloud punches down, smashing everything in its path. Tornadoes can be the most violent storms on earth, and Canada averages 80 of them each year. From scientists and storm chasers obsessed with their destructive power to the victims left in a twister's wake, we look at Canada's deadliest tornadoes of the past century.