Last Thursday, visitors to the Grand Canyon in Arizona witnessed a spectacular event: the enormous valley filled up completely with fog. Natasha Greiling of Smithsonian explains that this event is known as a "total cloud inversion." That's when cold air becomes trapped in the bottom of the canyon beneath a heavy layer of warm air. This occurs once every few years at the Grand Canyon during unusual conditions.
Fortunately, the National Park Service staff who work at the canyon were ready. They took some amazing photos, as well as a time-lapse video of the event, which you can see below. It looks like the canyon is filling up from the bottom.
-via Ace of Spades HQ
View more fun pics over at our NeatoPicto Blog
Really awesome video! I think it was a breathtaking view for visitors. After seeing this video I wish I have been there at that moment. I visited this delightful destination about two months ago during my charleston to new york bus trip. This is one of my favorite attractions of USA. We can see a rich blend of natural beauty and incredible formation of stones in this valley.
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I saw this happen in person many years ago. It was an impressive sight. The only regret I had was for some foreign visitors who missed their only chance to see the canyon's famous views after traveling so far.
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