A tornado is a violent rotating column of air extending between a cloud and the surface of the earth. They are usually produced when cool air overrides a layer of warm air, forcing the warm air to rise rapidly. Tornadoes can come one at a time or in clusters. Tornadoes have occurredin every province. One third of all the tornadoes reported in Canada have occurred in Ontario. During an average year Canada has about eighty …showed first 75 words of 295 total…

…showed last 75 words of 295 total…conditions. In Canada, tornadoes do not kill many, they mostly just break antennae, uproot trees or damage weak structures. Some precautions to take before a tornado strikes:  Determine your insurance eligibility, then high winds, rain and floods can cause significant damage to your property.  Make a plan with your family to ensure that everyone knows where to go and what do to if a tornado touches down.  Seek shelter in a basement or storm cellar.