アメリカ内務省のインスタグラム(usinterior) - 12月13日 00時57分

Yesterday, visitors to the #GrandCanyon National Park (@grandcanyonnps) in #Arizona got to see this rare and amazing sight. This meteorological phenomenon is called a total cloud inversion, and it happens when the air near the ground is cooler than the air above it, creating a blanket of clouds.

Photo of the total inversion near Desert View by Maci MacPherson, #NationalPark Service.

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