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Passage de l’orage (arcus) /storm – Knokke (Belgique – Belgium)


Passage de l’orage (arcus) /storm – Knokke (Belgique – Belgium)

Jonathan Herreman has produced this great real-time capture of an “arcus” formation. It shows how the arcus, also known as a ‘shelf cloud’, is a feature that extends out at the base of a Cumulonimbus storm cloud in front of the direction of the storm’s movement.

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