Hail as big as tennis balls, softballs and eggs fell in Alberta: Environment Canada

A group that researches hailstorms in Canada says a hailstone found in Markerville, Alta., Monday weighs a record-breaking 293 grams. (Twitter/Northern Hail Project) A group that researches hailstorms in Canada says a hailstone found in Markerville, Alta., Monday weighs a record-breaking 293 grams. (Twitter/Northern Hail Project)

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