Fallstreak hole

Rarity: Common

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

A fallstreak hole – also known as a cavum, hole punch cloud, punch hole cloud, skypunch, cloud canal, or cloud hole – is a large gap, usually circular or elliptical, that can appear in cirrocumulus or altocumulus clouds.

Excerpt from the Wikipedia article “Fallstreak hole”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: H. Raab (User:Vesta), CC BY-SA 3.0, via Wikimedia Commons.