Rare Weather Phenomenon Causes Panic Among Beachgoers in Portugal A rare weather phenomenon in the form of a massive roll cloud caused panic among beachgoers in Portugal. TRAVELBOOK explains what it ...

Beachgoers in Portugal scrambled for cover over the weekend as the sweltering heat gave birth to a rare “tsunami roll,” an ominous wave of dark clouds over the water. Viral video of Sunday’s ...

Lagnieu, France -- A rolling "sea" of undulating clouds moved over Lagnieu, France, as seen in this time-lapse captured by photographer Brice Volo. Volo captioned the footage "Mer agitée," which ...

A rare weather sighting occurred in Portugal as tourists and locals witnessed a one-of-a-kind cloud in the sky in recent days. (See the video at the top of this article.) A "tsunami" roll, also known ...

COLUMBUS, Ga. (WTVM) - A little more unsettled as we end the workweek and start the weekend thanks to a more active flow from the northwest. The mugginess will also increase as the front that moved ...