The Magnificent "Tsunami Cloud" Floats Along Portugal's Coastline 

Jul 01, 2025 Komal Das

During a heatwave, a huge roll cloud that resembled a gigantic ocean wave appeared over Portuguese coastal towns

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The cloud was observed near the beaches of Vila do Conde, Póvoa de Varzim, Figueira da Foz, and nearby beaches

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Rare long, tube-shaped clouds that seem to roll horizontally across the sky are called roll clouds

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It develops when warm, humid air meets cool sea air, causing the cloud to roll and stretch along a horizontal axis

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It produces a striking visual effect because of its shape and motion, which mimic a tall ocean wave hurtling towards the coast

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The roll cloud is not connected to earthquakes or tsunamis, despite its impressive appearance

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The phenomenon happened as Portugal and most of Western Europe were experiencing a severe heatwave

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In Portugal, roll clouds are uncommon; in Australia, where Morning Glory clouds can extend over 600 miles, they are more prevalent

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This magnificent cloud formation captivated everyone who saw it and serves as a reminder of the complexity and beauty of nature

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