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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
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- Humilis
- Incus
- Intortus
- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
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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
A developing storm near Santiago, Chile
Remnants of contrails spotted during the early afternoon over Springfield, Illinois, US
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A canvas of clouds and colour at sunset over Vermontville, Adirondacks, New York, US
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Cirrostratus spotted over North Dundas Township, Ontario, Canada
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Altocumulus perlucidus spotted at night over Velehrad, Czech Republic
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Sun Dog (Parhelion) spotted in the early evening over Wimborne, Dorset, England
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A mixed sky spotted by David's son, Craig West, over Callerton, near Newcastle upon Tyne, England
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Cirrus vertebratus spotted over Méthamis, Provence, France
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Sunset over Bonnie View Nature Sanctuary, Columbia, Missouri, US
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A bouquet of flowers floating in the sky over Toyohama, Fukuoka City, Japan
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A mixed sky spotted shortly before sunset over Mt. Haleakala, near Paia, Maui, Hawaii, US
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Subtle crepuscular rays at sunrise, prior to a day of hot temperatures, high winds, and intermittent thunderstorms over central Indiana, US
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Sunset following the passage of a storm near Sumirago, Varese, Italy
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Cumulonimbus spotted near Barcelona, Catalonia, Spain
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Altocumulus undulatus spotted over Aberdyfi, Wales
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Swallows taking in the early morning view over the Missouri River, near Wolf Creek, Montana, US
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