Called a “horseshoe vortex cloud,” these strange cloud formations are so fleeting that people seldom see them and photos are a matter of pure luck, experts say. Facebook screengrab/Stan Dorroh photo A ...
A rarely documented cloud that spins and folds itself all at once was photographed over Mississippi by a storm chaser. Called a “horseshoe vortex cloud,” the strange formations are so infrequent and ...
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