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Main Cloud Types
- Cumulus
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- Cirrocumulus
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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
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- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
- Homogenitus
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- Incus
- Intortus
- 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
- 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 classic UFO shaped lenticularis over Colorado, US.
Horseshoe Vortex over Boterhoek, Belgium
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Cumulus and snow, with mountains in between, as seen near Pikes Peak, Colorado, US
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Clouds with iridescence as seen through a reflection upon a pond of water, spotted in Northwest Iran
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Sunset over Glouster County, New Jersey, US
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Altocumulus undulatus over Crank, Merseyside, England
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Stratocumulus stratiformis radiatus spotted over Busquistar, La Alpujarra, Andalucia, Spain
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Altocumulus stratiformis over Nantwich, Cheshire, England
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Storm systems in varying stages of development and deterioration, spotted looking west towards the sea on a cold day, near Rufford, West Lancashire, England
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Cumulus clouds within which Junichi saw one that looked like Big Bird from the Sesame Street television show, spotted over Hakata Station, Fukuoka City, Japan
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Lenticularis over Vanadium, United States
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Horseshoe vortex spotted in between summer thunderstorms over Torquay, Victoria, Australia
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Lunar iridescence on a cold evening near Claygate, Surrey, England
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Clouds reflected in a garden pool where koi can swim "in the clouds". Macduff shared that clouds have significant symbolic presence in Japanese culture and are emphasized in gardens. They are symbols of change, impermanence, mystery, and potential, as well as the domain of the gods and the sacred. This exquisite reflection was spotted at the Adachi Museum of Art in Yasugi, Japan.
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Altocumulus stratiformis radiatus stretching out towards the horizon in the late afternoon sky over Folsom, California, US
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Virga, which is a trail of precipitation that falls from a cloud and evaporates before it can reach the earth's surface, is shown here amidst a vibrant sky near Santa Rosa, California, US
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