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Main Cloud Types
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- Cumulonimbus
Other Clouds
- Arcus
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- Cap / banner clouds
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- Cataractagenitus
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- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
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- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
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- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
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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
Cloud caps known as pileus forming over the tops of Cumulus congestus clouds and spotted over Little Switzerland, North Carolina, US.
A mixed sky, from low to high, of Stratocumulus, Altocumulus and Cirrus spotted over Papamoa, New Zealand.
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Cumulus congestus illuminated over Fukuoka, Japan
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Glory from the view of working in a wind turbine, over Assenede, Belgium.
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Stratocumulus over Haarlem, Netherlands
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Iridescence over Yellowstone National Park, Wyoming, US
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Stratocumulus observed over Mt. Yasur, Tanna Island, Vanuatu. George tells us there is an ash plume visible just beneath the cloud.
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Stratocumulus over Nieuwege, Belgium
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Dramatic lighting of Stratocumulus spotted over Seattle from Juanita Beach, Lake Washington, WA, US.
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Shreds of Stratus, known as Stratus fractus, on the slopes near the Blackfoot River in Montana, US.
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Altocumulus illuminated by the rays of sunrise with lower Stratocumulus lenticularis formations in shadow over Whiteface Mountain, Adirondack Mountains, NY, US.
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Moonlit Stratocumulus undulatus clouds spotted over Brisbane Water, Woy Woy, NSW, Australia.
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A land of Stratocumulus, Cumulus congestus and distant Cumulonimbus spotted at 37,000 feet over Soledad, California, US.
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Cumulus, Stratocumulus and Altocumulus vie for attention over the Adirondack Mountains, New York, US.
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Crepuscular rays burst out from Stratocumulus clouds over the Adirondack Mountains, in New York, US.
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A Cumulus elephant spotted over Geelong, Victoria, Australia.
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