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Main Cloud Types
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- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
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- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
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- Distrail
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- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
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- Morning Glory Cloud
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- 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
Undulatus spotted at sunset near Taylor, Texas, US
A mixed sky during the evening near Greenfield, California, US
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Stratocumulus over Pike's Peak, spotted by Sree Bhasin near Colorado Springs, Colorado, US
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An array of Stratocumulus spotted during a hike in Orsa, Dalarna County, Sweden
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A view from in between cloud layers while flying over Prince William Sound, during descent into Anchorage, Alaska, US
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A 'fish' swimming through the sky over Estrella Foothills, Arizona, US
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Crepuscular rays spotted over the Northern Tablelands National Park near Armidale, Northeastern New South Wales, Australia
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Sunset over Conwy, North Wales
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Stratus hugging the mountainside near Killarney, Ireland
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Stratocumulus spotted over Sacramento, California, US
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Stratocumulus spotted over Winthrop, Washington, US
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Sunset over North Dundas Township, Ontario, Canada
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Stratocumulus radiatus spotted over Orkney, Scotland
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Sunset over Hyderabad, Telangana, India
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Noctilucent clouds spotted by Julianna Dollinger's friend, Adam Cordero, over the Atlantic Ocean, on a flight to Spain
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Crepuscular rays shining through an opening in the cloud layer, spotted over Guna, Madhya Pradesh, India
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