Photo: Grand Canyon cloud inversion

National Park Service/Michael Quinn

A total cloud inversion on Thursday obscured visitors' view of the Grand Canyon. It's a phenomenon that happens every few years when warm air traps a layer of cold air below the canyon walls. It could take a few days before the canyon clears. The view above is from Mather Point on the south rim. Grand Canyon National Park posted a one-minute time lapse of the clouds flowing like tides on Facebook.


AP, Buzzfeed

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