Shelf clouds (Arcus)

Arcus clouds (shelf clouds) are among the most impressive cloud formations in the sky. Shaped like a long roll or a dark, menacing arc on the horizon, they typically appear ahead of a thunderstorm. These clouds form when the cold, dense air expelled by a storm suddenly spreads out across the ground, lifting the warm air in front of it. The result? A dramatic boundary between two air masses, sculpted by atmospheric dynamics.

Although they may look intimidating, arcus clouds are not inherently dangerous; they are primarily a sign that a storm is approaching. Their smooth, undulating structure fascinates meteorologists and skywatchers alike, as it reveals at a glance the power of the atmospheric movements at work.

Mysterious, majestic, and brimming with energy, arcus clouds transform the approach of a thunderstorm into a true scientific spectacle. Add this mythical formation to your collection and proudly display your love of weather with the Arcus sticker.

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PUN: My sticker is top-shelf!