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Main Cloud Types
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Other Clouds
- Arcus
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- Cap / banner clouds
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- Duplicatus
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- Mediocris
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
- Undulatus
- Velum
- Vertebratus
- Virga
- 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
- Halos
- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
- Lower Tangent Arc
- Moonbow
- Moondogs
- Parhelic circle
- 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
An opening in the cloud cover, spotted over northwest Iran
A colourful depiction of Altocumulus stratiformis spotted during sunrise over Penally, Pembrokeshire, Wales
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Altocumulus lenticularis spotted near Vermontville, Adirondacks, New York, US
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Signs of a 22-degree halo spotted over Heathrow Airport, Hounslow, England
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A mesmerizing sky over the Atlantic Ocean, near Boca Raton, Florida, US
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Crepuscular rays spotted during the evening over Charlo, Montana, US
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Cirrus spissatus spotted over Berrow Beach, Somerset, England
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A contrail and its shadow spotted from the ground, near Schongau, Bavaria, Germany
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Signs of a sun pillar spotted near Golden Hill Fort, Isle of Wight, England
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Signs of Mammatus (Mamma) associated with a storm system at sunset, spotted near Catania, Sicily, Italy
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Stratocumulus over Stratford-upon-Avon, England
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Horseshoe vortex spotted over Madison, Wisconsin, US
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A storm system with Mammatus (Mamma) spotted at sunset from the Bonnie View Nature Sanctuary, Columbia, Missouri, US
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A vivid partial rainbow spotted over the Irpinia Hills near Mercogliano, Avellino, Italy
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Iridescence over Sacramento, California, US
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Crepuscular rays amidst the rain showers, spotted looking towards the Front Range, from the Denver International Airport, Denver Colorado, US
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