Sea of clouds fills Grand Canyon in spectacular weather phenomenon

A breathtaking weather phenomenon turned the Grand Canyon into a cauldron of soupy cloud cover on Thursday The rare scenes were caused by a temperature inversion, which involves cold air filling the canyon while warm air lies above it, trapping the fog in place since the denser cold air hugs the ground. See also: Mesmerizing drone video reveals a foggy Dallas from above The result, a layer of low-lying clouds, or fog, produced the spectacular sight and turned the canyon into a sea of clouds. Tho...