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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
- Lenticularis
- Mamma
- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
- Nebulosus
- 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
Cumulus over Goodyear, Arizona, US
A classic example of mammatus (mamma) over Paris, France
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Altocumulus perlucidus over Tigre, Buenos Aires Province, Argentina
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A dynamic storm system with high wind gusts near Brighton, Colorado, US
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Altocumulus perlucidus over Falls Church, Virginia, US
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A storm system on the horizon near Aintree, Liverpool, England
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Stratocumulus over Rockaway Beach, Oregon, US
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A fogbow and a glory, with the latter being a multicoloured ring around one's shadow, spotted during a morning walk in the fog, on Mount Painter, Canberra, Australian Capital Territory, Australia
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Cirrus taking on the form of feathery angel wings over North Devon, England
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Sunset with cirrus over Crank, Merseyside, England
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Sunrise announcing its arrival over Pahang, Malaysia
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An early morning on the farm, wherein Ruth could hear the birds starting their day, near Charlo, Montana, US
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A storm system that appeared to have a "bear" climbing its way high above, along with a view of another storm in the distance, spotted by Steve Granberg near Albuquerque, New Mexico, US
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On the periphery of a thunderstorm, near Vermontville, Adirondacks, New York, US
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Crepuscular rays over Esfahan, Iran
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A storm system spotted prior to sunset over Volturara Irpina, Italy
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