Have you ever looked up at the sky and been struck speechless by a cloud so strange it seemed like a message from another ...

People relaxing on Furadouro beach, south of the city of Porto, saw a huge cloud rolling in from over the ocean.

A spectacular picture of the clouds looking like a stormy sea has gone viral on Reddit.. The picture, captured by Minnesota local Theresa Birgin Lucas, was shared to Reddit by user u ...

The dark, tsunami-like cloud formation billowed across parts of Portugal’s northern and central coasts, as the country set a ...

A rare, wave-like cloud formation blanketing the sky off the coast of Southern California left some people mesmerized — and wondering what it was. They were asperitas clouds, the Channel Islands ...

As moist sea air is lifted to the crest of the waves, it cools and condensation forms a cloud. ... These crazy clouds that look like a row of crashing waves are known as Kelvin-Helmholz waves.

Sea waves break as their bases are slowed down upon reaching shallow water and their crests surge ahead. ... This causes the clouds to look like breaking waves in the ocean, ...

Some can look like flying saucers while others look just like the choppy waves of the sea. Lenticular clouds have been used to explain away some UFO sightings. 8.

If you've ever looked up at the clouds and wondered where they came from, ... or from natural sources like sea spray and dust. ... the team covers the box with tape that looks like aluminum foil.