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Main Cloud Types
- Cumulus
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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
Admiring a summer sunset with mammatus (mamma) in the sky near Mt. Royal, Northern Hunter Valley, New South Wales, Australia
Cumulonimbus with an arcus outlining the leading edge of the storm, accompanied by pannus, spotted by John's friend, Will Werner, in Brazil
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Cumulonimbus spotted over Eastern Shore of Chesapeake Bay, Maryland, US
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Mammatus (Mamma) spotted over Modbury Heights, Adelaide, South Australia, Australia
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Signs of dissipating Cumulonimbus incus over the Bristol Channel towards England, spotted by Jean Deery near Barry, South Wales
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The brightest rainbow Eunice had ever seen, in an area wherein there are a lot of rainbows, spotted over Isle of Lewis, Scotland
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Asperitas in advance of a storm system over Beuningen, The Netherlands
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A developing storm spotted near Sacramento, California, US
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Signs of asperitas, which Ruth titled as 'Hot Lips', spotted near Bigfork, Montana, US
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A dissipating cumulonimbus with remnants of an incus, spotted from inside a bus near Mogi Mirim, Brazil
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A developing storm system spotted over Central Federal District, Russia
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Sunset with mammatus (mamma) and lightning, spotted over Daytona Beach, Florida, US
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Mammatus (Mamma) spotted in the morning sky over Arlington, Virginia, US
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A storm with mammatus (mamma) spotted over Estrella, Arizona, US
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Altocumulus lenticularis spotted above a layer of stratocumulus, shortly before a storm over Canutillo, Texas, US
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Sunset following a storm over Canberra, Australia
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