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Main Cloud Types
- Cumulus
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Other Clouds
- Arcus
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- Cap / banner clouds
- Capillatus
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- Cataractagenitus
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- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
- Diamond dust
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- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
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- Fractus
- Homogenitus
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- Lacunosus
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- Morning Glory Cloud
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- Mediocris
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- Noctilucent
- Pannus
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- Pileus
- Praecipitatio
- Radiatus
- Silvagenitus
- Spissatus
- Stratiformis
- '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
Cumulus and Cirrocumulus stratiformis existing within their two respective layers of the sky, as spotted by Sarangi Juneja over Sienna, Italy
Altocumulus stratiformis undulatus as seen from above the clouds, over the state of Delaware, US
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Classic example of an Altocumulus lenticularis duplicatus, also known as "Pile d'assittes", spotted over Langfjordbotn, Finnmark, Norway.
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Horseshoe Vortex over Brighton, Colorado, US
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Localized area of precipitation falling onto a lower level of clouds during sunset, as seen from Selsey overlooking The Solent, England
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Cumulonimbus with dynamic crepuscular rays illuminating the falling precipitation near Mendip Hills, Somerset, England
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Virga over Hennef, Germany
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Indications of the short-lived Fluctus (Kelvin-Helmholtz) cloud formation as spotted over Bangalore, India
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Cumulus congestus that brought heavy showers near Erm, Netherlands
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A myriad of colors over Canutillo, Texas, US
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Contrail over Lindenhof, Switzerland
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Supernumerary bows, which consist of tiny fringes inside the primary bow, along with a secondary bow, spotted near Crank, Merseyside, England
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A colorful and bold sky at sunset near Charlo, Montana, US
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Altocumulus stratiformis over Moscow, Russia
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Storm system that produced a modest lowering of a section of the cloud, although it does not appear to be a tuba in this instance, which was spotted over Zhejiang, China.
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