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Optical Effects
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This formation over Biddenden, Kent, UK, is often a sign of imminent thunderstorms or an active cold front.
1 thought on “Harry van Dijken”
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A blanket of Altocumulus, along with a view of the Sun, spotted over Dernancourt, Adelaide, South Australia, Australia
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Signs of larger shaped lacunosus spotted over Gibsons, British Columbia, Canada
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Mammatus (Mamma) spotted during sunset over Lombard, Illinois, US
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Altocumulus lenticularis, which is more often observed near mountainous regions, can have a distinct UFO-shape to it, as spotted here along with iridescence, by Alexia's friend, Ted, over Lexington, Virginia, US
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A colourful sky over Quincy, Washington, US
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Signs of supercilium development spotted over Buckley, Flintshire, North Wales
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Stratocumulus spotted over Esfahan, Iran
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Iridescence spotted over Podłęże, Poland
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This cloud looked like a falling angel when John spotted it over Lusk Village, County Dublin, Ireland
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Altostratus spotted thirty minutes prior to sunrise, over Madison, Wisconsin, US
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Colourful sunrise over Erm, Netherlands
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Crepuscular rays spotted over Taoyuan, Taiwan
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A colourful sunrise over Brighton, Colorado, US
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Altocumulus spotted over Kaohsiung, Taiwan
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Sunset over Lisboa, Portugal
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I sat on Penarfynydd once and watched an example of this moving in across the sea. The air behind the line was visibly of a different quality to the air ahead – a difference that is impossible to describe except with vague references to clarity and colour.