Beachgoers in Portugal scrambled for cover over the weekend as the sweltering heat gave birth to a rare “tsunami roll,” or ...

Cloud Tsunami A viral video making its rounds on social media shows geachgoers in Portugal encountering an enormous and ...

A dramatic “roll cloud“ spotted up and down the country’s central coast formed during a weeklong heat wave.

It resembles a giant wave rolling across the sky. Read more at straitstimes.com. Read more at straitstimes.com.

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

Rare roll cloud phenomenon advances over the ocean like a giant wave, captivating onlookers and spreading rapidly online.

Portugal like much of Europe has been experiencing a heat wave in recent days, but another rare weather phenomenon also ...

A rare 'tsunami roll' appeared in the sky off the coast of northern Portugal on Sunday, 29 June, causing beachgoers to flee ...

A rare roll cloud was seen passing over several beaches in Portugal on Sunday, June 29. The phenomenon features a cloud that ...

A rare and stunning roll cloud formation captivated beachgoers in Portugal, resembling a massive horizontal wave. The unusual ...

A critically endangered fox, called "one of the rarest mammals in the world," was recently caught on camera by a Northern ...

Check out this incredible roll cloud spotted off the coast of Portugal on Sunday. Roll clouds are most common with ...