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Main Cloud Types
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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
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- Humilis
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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
- 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
A sunset over Morecambe bay, UK.
Lacunosus over Werribee, Australia
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A mixed sky beyond the streets of Taipei, Taiwan
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Undulatus over Melbourne, Australia
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A plethora of altocumulus lenticularis duplicatus, spotted in the morning over Mount San Jacinto, Desert Hot Springs, California, US
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A full moon spotted beyond the layer of intermittent clouds, over Bigfork, Montana, US
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Altocumulus over National Taipei University, Taiwan
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Undulatus over Principe Real, Portugal
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Soaring beneath altocumulus perlucidus over San Diego, California, US
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A full moon behind a layer of altostratus over Bottesford, North Lincolnshire, England
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Sun Pillar over Oberndorf, Germany
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Altocumulus lenticularis spotted on a drive home after skiing in Mammoth Lakes, California, US
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A majestic view at sunset near the Uptown area of New Orleans, Louisiana, US
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Crepuscular rays over Canberra, Australia
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Stratocumulus over the fields near Anaverde, California, US
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A cloud that Robyn found to be smiling down on her, spotted over Goodyear, Arizona, US
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