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Main Cloud Types
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Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
- Cauda (Tail cloud)
- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
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- 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
- 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 sighting of asperitas clouds over Hiawatha (just outside of Cedar Rapids), Iowa, US.
Altocumulus stratiformis that took on the appearance of an x-ray of ribs, spotted over Estrella Foothills, Arizona, US
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Circumzenithal Arc spotted over Brighton, Colorado, US
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Cumulus spotted over Sanxia District, Taiwan
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Crepuscular rays spotted over Sizihwan Bay, near Kaohsiung, Taiwan
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A circular looking contrail produced by the Red Arrows, officially known as the Royal Air Force Aerobatic Team, based out of Waddington, spotted nearby from Southrey, Lincolnshire, England
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Altocumulus spotted over Cologne, Germany
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Altocumulus floccus spotted over Siesta Beach, Florida, US
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Cumulus amidst the blue sky, spotted above National Taipei University, New Taipei City, Taiwan
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Sunrise with the Sangre de Cristo mountain range in view, near Santa Fe, New Mexico, US
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Altocumulus stratiformis undulatus spotted at sunset over Ayr, Scotland
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A burst of precipitation spotted over the Atlantic Ocean, near Boca Raton, Florida, US
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Signs of limited Fluctus (Kelvin-Helmholtz) spotted on a windy day near North Dundas Township, Ontario, Canada
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Sunset captured by Alexia's friend, Bob Hunter, looking west toward the Alleghany Mountains, near Vesuvius, Virginia, US
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A corona spotted during a walk in the forest in the Sacramento Mountains, near aptly-named Cloudcroft, New Mexico, US
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A view from in between cloud layers while flying over the Baltic Sea, en route to Germany
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