Lauren's Science Corner: Hole Punch CloudsNo, it’s not a UFO or the onset of the apocalypse…it’s a hole punch cloud, an usual and mysterious sight to witness. Hole punch clouds, which are also called canal clouds, were spotted in the skies over the Twin Cities on Sunday and again Tuesday. WCCO-TV viewers in Minneapolis, Blaine, Chaska, and Mahtomedi captured photos of this rare and intriguing phenomenon.

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