A rare phenomenon called a "roll cloud" covered Portugal beaches on Sunday, June 29 The tsunami-like formation shocked beachgoers, many of whom filmed the moment Scientists say the cloud was caused by ...

As much of Europe battled a rare heat wave, beachgoers trying to cool off on the coast of Portugal were stunned by another surprising weather phenomenon. Videos taken across parts of the northern and ...

A picture of a cloud formation in Virginia that resembles rolling waves is going viral. Weather experts say this type of cloud formation, which was spotted in over Smith Mountain Lake near Roanoke, is ...

Beachgoers captured photos and video of the shocking weather phenomenon on Sunday, June 29 Rachel McRady is a Digital News Editor at PEOPLE. She has been an entertainment journalist for more than a ...