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 ...

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

Seven U.S. cities have recently captured spectacular, record-breaking cloud formations—from wave-like undulatus to glowing ...

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

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

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

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

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

The rare clouds in Darlington (Image: YVONNE ALDERSON) They are the highest clouds in the Earth's atmosphere and are ...