In a moment that felt ripped straight from the pages of a fantasy novel, a video of an eerie, black cloud drifting over ...

You’ll notice the clouds don’t look like the others in the area. For the date of April 11 Mystery Solved - These are orographically induced gravity wave clouds or stratocumulus lenticularis ...

"It's like looking up at the surface of a turbulent, choppy sea from below," he added. According to Pinney, Canada has one or two confirmed sightings of the clouds every year, primarily over Ontario.

Ominous clouds overlooked portions of Tennessee on Thursday, April 3, as the National Weather Service issued a tornado watch for parts of the state. Footage from Julie Higgins shows what she described ...