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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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- Cataractagenitus
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- Cavum (Fallstreak hole)
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- Duplicatus
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- Flammagenitus (Pyrocumulus)
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- Praecipitatio
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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
A storm developing over Saint-Momelin, France
Contrail over Copake Lake, United States
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Multiple lightning strikes and praecipitatio over Bluff, Utah, US
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Sunset while looking west from Newquay, Cornwall, England
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Pileus illuminated by iridescence near Xiamen, Fujian, China
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Cumulus fractus, observed as "cloud glyphs" by Anna Rusk, gliding above the mountains in Rocky Mountain National Park, Colorado, US
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Multi-level clouds over Sydney, Australia
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Altocumulus over Groenendaal, Belgium
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Sunrise casting a shadow of Mt. Rinjani on the island of Lombok, Indonesia
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Within these robust Cumulus congestus cloud formations, there are strong updrafts contributing towards the development of a potential storm system, over the Sandia Mountains in Albuquerque, New Mexico, US
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A developing storm near Dortmund, Germany
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Noctilucent clouds, along with the Big Dipper, spotted over Gloucester County, New Jersey, US
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Radiatus over Patea, New Zealand
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A multi-colored sky over Mercogliano, Italy
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As observed by Julia Pearce, "a silver vapor trail zigzagged from space across the whole sky. It was trailing behind an unknown object which appeared to be dropping pieces of itself as it went. Either a re-entry vehicle or a meteorite." Observed over Laguna Niguel, California, US.
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Altocumulus radiates towards the horizon over Malaga, Spain
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