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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
- Homogenitus
- Horseshoe vortex
- Humilis
- Incus
- Intortus
- Lacunosus
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- Mamma
- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
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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
Reflections of cumulus on a walk by the bay, which Monica described being not long after a major downpour, so there was much sogginess and sludge underfoot, but the view made up for it, near Berkeley, California, US.
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Altocumulus with the view of the moon spotted during the early evening over the hills of Laguna Niguel, California, US
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Cumulonimbus viewed at night, near Siler City, North Carolina, US
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Cirrocumulus cloud formation that appears to have originated from a contrail, spotted near Walnut Creek, California, US
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Cirrocumulus undulatus over Jilin Province, China
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Mammatus (Mamma) spotted over Woden, Canberra, Australia
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Nacreous over Lauvland, Norway
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A vivid sunset, as photographed by Moriah's sister, Brianna Rivas, near Antelope Valley, California, US
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Crepuscular rays over Pitman, New Jersey, US
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A storm system with a well-developed arcus, also known as a shelf cloud, near Cotia, Sao Paolo, Brazil
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Signs of lenticularis that Alan commented looks like a hen, spotted over Scotland
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Late day iridescence in thinning altocumulus lenticularis, spotted over Brighton, Colorado, US
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After a week of gloomy days, Andrea shared that there was a fabulous sunset show with several layers of clouds sliding overhead and changing colour by the minute, as seen over Bolton, Ontario, Canada.
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Signs of a horseshoe vortex over Cotia, São Paulo, Brazil
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