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Main Cloud Types
- Cumulus
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- Cirrocumulus
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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
- Humilis
- Incus
- Intortus
- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
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- Noctilucent
- Pannus
- Perlucidus
- 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
Cirrus clouds that looked they were dancing over Marinatown, Fukuoka City, Japan
Cirrus in the morning sky over Modbury Heights, Adelaide, South Australia, Australia
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Cirrus resembling smoke coming from a chimney, spotted over Montgomery Village, Santa Rosa, California, US
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An exquisite sunrise over the Atlantic Ocean, near Boca Raton, Florida, US
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With birds flying in the sky, a 'bird' appears in the shape of a cloud, spotted over Fancy Farm, Kentucky, US
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Remnants of contrails spotted over San Diego, California, US
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Sunset over Atagohama Central Park, Fukuoka City, Japan
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Cirrus uncinus with a semblance of a face within its midst, spotted over San Luis Obispo, California, US
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A developing storm over Bangkok, Thailand
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Cumulus along the horizon, spotted over Hakata Bay from the coast of Saitozaki, Fukuoka City, Japan
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Cirrus vertebratus spotted over Dallas, Texas, US
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A clearing sky following rain near Greenfield, California, US
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A mosaic of clouds during sunset over Taylor, Texas, US
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A fraction of a Circumzenithal Arc, with its 'upside-down' rainbow colours, visible via the confines of this cirrus cloud, spotted over Bayramiç, Çanakkale, Turkey
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Circumzenithal Arc, also known as an 'upside-down rainbow', spotted by Richard's son, Graham Friedman, on a beautiful, calm day over Malibu, California, US
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Sunset over Marizon, Fukuoka City, Japan
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