Surfing A “tsunami of clouds” hits Portugal’s beaches Rare roll cloud phenomenon advances over the ocean like a giant wave, captivating onlookers and spreading rapidly online.

Going by the name volutus, the new species is described in the guidebook as 'long, typically low, horizontal, detached, tube-shaped cloud mass' and often appears to 'roll slowly about'.

The Portuguese Institute of the Sea and Atmosphere (IPMA) has explained that the rare meteorological phenomenon which was ...

When a grainy clip of a colossal, tube-shaped cloud sweeping across the horizon went viral on June 29, 2025, many who saw it assumed the worst. They are called: tsunami clouds. Social feeds lit up ...