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Optical Effects
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- Wegener arc
This formation over Biddenden, Kent, UK, is often a sign of imminent thunderstorms or an active cold front.
One thought on “Harry van Dijken”
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Cumulus congestus during the early morning over Colonia, the main town on the island of Yap in the Federated States of Micronesia
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Shortly before sunset, precipitation falling in the distance as storm clouds developed near Eugene, Oregon, US
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This image was captured and described by Hsieh as a "stunning sky filled with rippling altocumulus clouds over an urban street at sunset, creating a mesmerizing pattern. The warm glow of the sun contrasts beautifully with the cool tones of the sky and the silhouettes of buildings below," over New Taipei City, Taiwan
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Altocumulus stratiformis undulatus over Aix-en-Provence, France
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Virga during the afternoon over North Devon, England
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A welcome sunset after days of unrelenting rain and wind, near El Dorado Hills, California, US
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An incoming layer of clouds that developed into a storm shortly after sunrise over Singapore
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Moonset with some faint altostratus over Bluff, Utah, US
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Cumulus congestus over Northern California, US
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Cloud streets near Oosterbeek, Netherlands
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Birds taking flight underneath a couple of layers of clouds after some rain near Moss Landing, California, US
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Cumulus congestus viewed from the summit of The Brocken, the highest mountain in northern Germany, spotted over Harz National Park, Germany
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Altocumulus stratiformis radiatus over Isle of Lewis, Scotland
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A storm system moving over farmland near Randolph, Iowa, US
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Precipitation on the horizon near Kamloops, British Columbia, Canada
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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.