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Main Cloud Types
- Cumulus
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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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- Humilis
- Incus
- Intortus
- Lacunosus
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- Mamma
- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
- Nebulosus
- Noctilucent
- Pannus
- Perlucidus
- 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
Lacunosus clouds, the honeycombs of the sky, spotted over Oakland, California, US
Layers of altocumulus lenticularis, also known as 'pile d'assiettes', with signs of asperitas closer to the horizon, amidst the display of undulatus over Singleton, New South Wales, Australia
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Altocumulus undulatus radiatus over Sarina, Queensland, Australia
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Evening clouds accompanied by a sliver of the moon, spotted over the Pacific Ocean, near Manzanita, Oregon, US
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Layers of clouds over Curtin, Canberra, Australia
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The visible moon beyond the reach of an approaching cumulonimbus, spotted over Zagreb, Croatia
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Reflections of the sky over Baker Lake, Washington, US
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Cumulonimbus near Luskentyre Beach, Isle of Harris, Scotland
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Signs of asperitas with a storm near Rotterdam, The Netherlands
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Cumulus beneath bursts of cirrus, spotted over Geelong, Australia
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A late night summer sunset near Skjolden, Norway
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A developing storm system over Lake Maggiore, Piemonte, Italy
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A mirror image of the sky over Lake Savica, Zagreb, Croatia
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Cumulus congestus over Surfers Paradise, Gold Coast, Queensland, Australia
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A nighttime view of passing cumulus over Palma de Mallorca, Spain
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Altocumulus undulatus radiatus spotted by Lucien's friend, Matt Bennett, over Gold Coast, Australia
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