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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
- Homogenitus
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- Intortus
- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- 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 Sunset over Ipanema, Rio de Janeiro.
Crepuscular rays spotted by Bill's wife, Julie, over Louisville, Kentucky, US
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Altocumulus lenticularis spotted over the Edinburgh Airport, Scotland
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A painted sky over Tucson, Arizona, US
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A rainbow amidst the storm, spotted over Redland Bay, Queensland, Australia
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Altocumulus perlucidus over Cleveland, Ohio, US
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A magnetic sunset captured by Cristina's friend, Linette Peterson, near Shelley, Idaho, US
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A variety of cumulus cloud formations spotted over Poughkeepsie, New York, US
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Pileus spotted over Willawong, Queensland, Australia
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An approaching storm over southwest Saskatchewan, Canada
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Kelvin-Helmholtz (Fluctus), a first for Jiaren in terms of capturing it in a photograph, while on a trip to Wulanhada Volcano Geopark, Inner Mongolia, China
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A unique variation of cumulus congestus, influenced in its shape by upper air winds, spotted over Alesund, Norway
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Signs of virga over Avondale, Arizona, US
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Asperitas with lacunosus spotted by Jeffrey while re-deploying a gas analyzer on the MOFLUX tower that measures the breathing of the forest, near Baskett Forest, Boone County, Missouri, US
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Cacti reaching for the clouds over Tucson, Arizona, US
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As the cloud moved into the perfect position over the sun, Helen captured this fire breathing dragon near the North York Moors, England
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