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One of the worst wake-up calls to get is a tornado alert, or even worse a tornado right in your neighbourhood. No one can clearly explain the occurance of a tornado and the origin but (Edward 1) explains that tornadoes occur from violent rotating thunderstorms referred to as supercells. They are unpredictable and have no specific indicators.
A tornado is explained to be a column of air rotating violently ubderneath a cumuliform cloud.
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