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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
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- Flammagenitus (Pyrocumulus)
- Floccus
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- Fractus
- Homogenitus
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- Lacunosus
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- Morning Glory Cloud
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- Mediocris
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- Noctilucent
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- Pileus
- Praecipitatio
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- Silvagenitus
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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
A sea of Stratus in the moonlight over Campo dei Fiori, Varese, Italy.
Cumulonimbus over Tullamore, United States
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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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