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Main Cloud Types
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Other Clouds
- Arcus
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- Cap / banner clouds
- Capillatus
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- 'Supercilium' (not official classification)
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- Tuba / Twister
- Uncinus
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- Velum
- Vertebratus
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- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
- Green flash
- Glory
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- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
- Lower Tangent Arc
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- Moondogs
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- Parry antisolar arcs
- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
- Sub parhelion
- Sub-sun
- Suncave parry arc
- Sun dog (Parhelion)
- Sun pillar
- Supernumerary bows
- Subparhelic circle
- Supralateral arc
- Upper tangent arc
- Wegener arc
Haar or sea fret, also known as a cold sea fog, occurs most often on the east coast of Scotland between April and and September, when warm air passes over the cold North Sea, is seen here over Coll Beach, Isle of Lewis, Scotland
A series of Cumulonimbi over WhiteFace Mountain, near Vermontville, Adirondacks, New York, US
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A mixed sky over Piperdam, near Dundee, Scotland
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A colourful sky over Taipei, Taiwan
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Cirrostratus radiatus spotted at sunset over Central Tilba, New South Wales, Australia
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Circumhorizon Arc spotted over Wörthsee, Bavaria, Germany
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Altocumulus perlucidus spotted over Sacramento, California, US
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Mammatus (Mamma) over Monument, Colorado, US
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A stormy night over Madison, Wisconsin, US
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Cumulus fractus spotted over Winthrop, Washington, US
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Altocumulus undulatus spotted over Pietracorbara, Cap Corse, France
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Crepuscular rays and shadows near Gurnard, Isle of Wight, England
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Stormy sky over Coigach, Northwest Highlands, Scotland
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Altocumulus floccus spotted in the early morning over Falls Church, Virginia, US
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Signs of virga spotted over Goodyear, Arizona, US
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Cumulus spotted over the Tejo River (Tagus), Lisboa, Portugal
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