An intense heat wave brings a rare “tsunami” roller cloud in the sky of Portugal while beach lovers debate the sight

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A rare meteorological observation occurred in Portugal while tourists and residents have attended a unique cloud in the sky in recent days. (See the video at the top of this article.)
A “tsunami” roll, also known as the roll of roll, filled the sky on Sunday following a heat wave, according to Euro News.
Portugal temperatures have reached more than 107 ° F with heavy rain, thunderstorms and hail.
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The roll is low in the sky in a cloud of arctus in the shape of a horizontal tube and is “relatively rare”, according to the National Weather Service (NWS).
“Roll clouds generally seem to” ride “around a horizontal axis, but should not be confused with funnel clouds,” said NWS.

A rare roller cloud “tsunami” is shown filling the sky of Portugal after a heat wave, with temperatures above 107 ° F. (Arthur Carvalho / AFP via Getty Images)
Stephen Corfidi, meteorologist at the National Oceanic and Atmospheric Administration (NOAA), previously told National Geographic that clouds were generally associated with thunderstorms.
Roll Clouds “can last several hours and extend over several hundred kilometers,” said Corfidi at the exit.
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“The” shear “through the inversion sets up a rolling movement a bit like that of a rolling pin used in a bakery,” said Corfidi.
Beachgoers went to social networks to share videos and discuss the phenomenon.

Beach lovers compare the clouds of rollers to a tsunami of a film. (Arthur Carvalho / AFP via Getty Images)
“It was crazy to have known this rolling cloud in northern Portugal. Felt like a tsunami in a film,” said a user X.
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Another user wrote: “This cloud rolled up like a real tsunami on Portugal.”

The rolls of rollers are low in the sky in a cloud of arctus in the shape of a horizontal tube and are “relatively rare”. (Arthur Carvalho / AFP via Getty Images)
“It looks frightening, but cool,” posted an X user.
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A user added: “It looks cool, TBH.”