Tag Archives: clouds

Pillar

Cloud of the Day – Pillar The pillar is an optical phenomenon where a light source, the Sun or the Moon or a streetlight, eg, is accompanied by a vertical column of light. Depending on the position of the light … Continue reading

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Sun Dogs

Cloud of the Day – Sun Dogs Many of the optical effects in meteorology, such as halos around the Sun and Moon, are the result of the way light interacts with ice crystals. Rainbows are a different matter. They’re the … Continue reading

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Asperatus

Cloud of the Day – Asperatus Asperatus, also known as undulatus asperatus and altocumulus undulatus asperatus, is biblical. It’s the kind of cloud that makes people think that the world might be at the mercy of supernatural forces. They might … Continue reading

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