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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
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- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
- Homogenitus
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- Lacunosus
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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
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- '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 fragment of a Circumhorizon arc over San Juan Island, Washington State, US.
Cirrostratus spotted over High Ham, Langport, Somerset, England
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A picturesque sunset with a trace of a Sun pillar, spotted over Sumirago, Varese, Italy
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Sunrise over Modbury Heights, Adelaide, South Australia, Australia
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A glory spotted below, along with the shadow of the plane, during a flight's descent over Helsinki, Finland
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A rainbow over the water following a grey and wet morning, spotted when leaving Trondheim, Norway
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A line of Cumulus mediocris spotted along the horizon, near Lisboa, Portugal
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A developing storm system spotted while driving east towards Sherman, Illinois, US
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Altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Belleair Beach, Florida, US
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Altocumulus floccus spotted over Kirkkonummi, Finland
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Roiling grey storm clouds colliding with a gentle apricot sunset, as Reven observed, to reflect the silhouettes of beach volleyball players in the rain pools on the roof of her daughter's car. Reven's daughter, Isla, captured this scene from Ocean Beach, San Diego, California, US.
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Cumulus fractus with signs of iridescence, spotted over Taiwan
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Stratocumulus lenticularis spotted over Springfield, Missouri, US
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A rainbow spotted over Willits, California, US
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Stratocumulus over Lisboa, Portugal
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A lone Cumulus hovering over Crater Lake National Park, Oregon, US
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