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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
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- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- 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
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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 imposing sky over Curtin, Canberra, Australia.
A long exposure reflection of cumulus spotted near Bluff, Utah, US
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High level clouds spotted over Khomeynishahr City, Esfahan, Iran
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Fog and fall foliage spotted during a bike ride near Bigfork, Montana, US
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A swirl of clouds spotted over Western Iran
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Cirrostratus spotted while looking east near Ingle Farm, Adelaide, South Australia
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A blanket of altocumulus with cumulus fractus below, spotted over Boca Raton, Florida, US
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A mixed sky following days of grey cloud cover, spotted over Garrabost, Isle of Lewis, Scotland
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Altocumulus lenticularis spotted over southern Corsica, France
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Criss-crossing contrails spotted over Seattle, Washington, US
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Sunset over Taoyuan, Taiwan
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Signs of a storm system near Le Havre, France
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Crepuscular rays and shadows spotted from Cijin Beach, Kaohsiung, Taiwan
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Sunset over New Taipei City, Taiwan
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A textured layer of stratocumulus over Somerset, England
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A colourful mosaic spotted near Tainan, Taiwan
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