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Main Cloud Types
- Cumulus
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- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
- Cauda (Tail cloud)
- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
- Diamond dust
- Distrail
- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
- Homogenitus
- Horseshoe vortex
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- Intortus
- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
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- Noctilucent
- Pannus
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- Pileus
- Praecipitatio
- Radiatus
- Silvagenitus
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- 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
Cirrostratus and contrails that Jarne says resembles "broken ice in the sky" over Gent, Belgium
Circumhorizon Arc over Lakewood, Washington, US
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22-degree halo over Bigfork, Montana, US
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22-degree halo over Barbados, West Indies.
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Cumulus and Cirrostratus over Blakeney, Gloucestershire, England. “To my eye this cloud looks like a bizarre two-headed 'push-me-pull-you' crocodile,“ says Jeremy Williams, “but maybe I’m hallucinating!”
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A 22-degree halo formed by Cirrostratus cloud and some cloud iridescence formed by Cumulus fractus, spotted over Zoetermeer, South Holland, Netherlands.
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A dog barking over Bigfork, Montana, US.
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A lunar corona caused bye the moonlight shining through a high layer of ice crystals known as a Cirrostratus cloud, spotted over Pisa, Italy.
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Ice crystals in Cirrus clouds forming a sun dog spotted over Dreieich, Offenbach, Germany.
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The ice crystals in Cirrus, Cirrostratus and aircraft contrails over Singen, Germany formed the optical effect known as a parhelic circle. This is the horizontal bright band of light level with the Sun appearing in the cloud regions.
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A lunar halo over the Sierra de las Nieves national Park in Tolox, Andalucia. Spain.
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Anti-crepuscular rays over Cascavel, Paraná, Brazil.
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A 22° lunar halo over Sumirago, Varese, Italy.
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Arcs and Halos over Krauma Geothermal pools, Iceland.
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A halo and sundogs over Milwaukee, US.
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A sunset over Akranes, Iceland.
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