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

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

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

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

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

Roll clouds seen in Portugal following heatwave as temperatures hit over 107 °F with heavy rain, thunderstorms, and hail.

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

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

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

A record-breaking roll cloud, described as a massive ocean wave, rolled over the Atlantic during a heatwave in Portugal and ...

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