A “roll cloud” spotted off the coast of Portugal looked like something out of a movie. Here’s the science behind it.

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

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

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

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

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

A dramatic video showing a "roll cloud" over a beach in Portugal is going viral on social media, leaving netizens mesmerised.

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 stunned beachgoers in Portugal as it swept across the sky during a heatwave. Watch the breathtaking moment.

Mainland Portugal faces a heatwave with temperatures reaching 42°C. A rare roll cloud surprised sunbathers on beaches, while ...

People in Portugal witnessed one of the most beautiful natural phenomena– after ‘roll clouds’ took over the ocean, turning it ...

On Sunday, across some parts of the northern and central Coast of Portugal, a “roll cloud”, as it is commonly referred to, ...