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 ...

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 appeared over Portugal’s coast, surprising beachgoers as strong winds hit during an ongoing extreme ...

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

Mediterranean countries have been sweltering in a heatwave for several days, prompting health warnings and alerts about ...

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

Beachgoers in Portugal were left terrified after spotting what appeared to a tsunami heading their way this week. Thankfully, ...

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

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

Tsunami-like cloud seen over beaches in Portugal freaked out people. The hot weather triggered the formation of the roll ...

A rare roll cloud surprised beachgoers in Portugal amidst a severe heatwave, appearing along the coast on Monday. This ...