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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
- Diamond dust
- Distrail
- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
- Homogenitus
- Horseshoe vortex
- Humilis
- Incus
- Intortus
- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
- Nebulosus
- 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
Cumulonimbus over Tullamore, United States
Pyrocumulus (Flammagenitus) captured by a friend who is a wild land firefighter near Garden Valley, Idaho, US
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Fluctus (Kelvin-Helmholtz) over Kettering, England
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Storm system developing near Antelope Valley, California, US
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Altocumulus lenticularis and cumulus share the sky near Berthoud, Colorado, US
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A solitary cloud that appears to resemble a bird in a nest, over Glendale, Arizona, US
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Mamma (Mammatus) near Bremen, Germany
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Iridescence, caused by the light being diffracted as it passes through the cloud, as in this example on thin layers of altocumulus lenticularis clouds over Erm, Netherlands
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A soaring bird takes in the majestic Cumulus congestus amidst a sky that is filled with cloud development in different stages over Buckinghamshire, England
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Cumulus congestus, accompanied by cumulus fractus in the foreground, over Passirac, France
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Mamma (Mammatus) contrasting with blue sky towards the horizon, spotted over Grottaferrata, Rome, Italy
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Radiatus over East Malling, United Kingdom
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Storm system accompanied by altocumulus lenticularis, spotted over the Adirondack Mountains, Vermontville New York, US
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Lunar halo over Esfahan, Iran
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Sunrise over Boca Raton, Florida, US
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Virga, which is precipitation that is not reaching the ground, in the foreground, and praecipitatio, indicating falling precipitation that is reaching the ground, in the background near the horizon, spotted over Gardnerville, Nevada, US
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