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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
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- Lacunosus
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- Morning Glory Cloud
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- Mediocris
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- Pannus
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- Pileus
- Praecipitatio
- Radiatus
- Silvagenitus
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- 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 view of the sky and its accompanying clouds over the Pacific Ocean, as seen from Pacific Grove, California, US
Cirrostratus clouds that Zé yòu says looks like the Milky Way, spotted over Suzhou, Jiangsu, China
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Reflections at sunrise over Twin Lakes Recreation Area in Columbia, Missouri, US
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Remnants of multiple contrails spotted over West Falls Church, Virginia, US
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Contrails (Homogenitus) over Clyffe Pypard, Wiltshire, England
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Following the passage of four fighter jets, this "train track" pattern of contrails was spotted over North Devon, England
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Criss crossing contrails spotted over Lusk County, Dublin, Ireland
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A vibrant sunset over Union Bay, Seattle, Washington, US
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Multiple contrails over the Atagohama Bus Terminal, Fukuoka City, Japan
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Undulatus over Taipei, Taiwan
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Multiple contrails over Baltimore, Maryland, US
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Undulatus spotted over Fenglin Village, Shiding District, Taiwan
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Contrails over Taiwan
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A contrail slicing through the sky, with iridescence amidst the cumulus fractus, spotted over Northern California, US
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A mixed sky over Taipei, Taiwan
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Contrails (Homogenitus) over a layer of altocumulus, spotted near San Bernardino County, California, US
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