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Main Cloud Types
- Cumulus
- Stratus
- Stratocumulus
- Altocumulus
- Altostratus
- Cirrus
- Cirrocumulus
- Cirrostratus
- Nimbostratus
- 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
- Lenticularis
- 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
Cumulonimbus incus, also known as an anvil cloud, which indicates that the storm has reached a level of stratospheric stability and is considered to be in its mature stage, as seen here over Centerville, Ohio, US
Cumulus humilis spotted on an afternoon at the Alster, a tributary of the Elbe River, near Hamburg, Germany
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A face in the clouds, spotted on the way to a music event near Santa Fe, New Mexico, US
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A contrail slicing through the sky over Winthrop, Washington, US
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A line of Cumulus congestus spotted on a day where cold temperatures arrived at Isle of Lewis, Scotland
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Crepuscular rays at sunrise over the Atlantic Ocean, near Boca Raton, Florida, US
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Crepuscular rays over Zingst, Ostsee, Germany
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Sunrise over central Indiana, US
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Birds taking flight with the backdrop of the setting sun, spotted near Fancy Farm, Kentucky, US
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A bunny spotted in the sky over Sumburgh Airport, Scotland
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A veil of clouds over Goodyear, Arizona, US
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Altocumulus spotted on an Autumn morning over Modbury Heights, Adelaide, South Australia, Australia
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Remnants of contrails spotted over Brecksville, Ohio, US
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Stratocumulus spotted from above, on a flight between Veracruz and Mexico City, Mexico
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Cumulus congestus with a low cloud base, generating a reflection in the water and producing precipitation near Isle of Lewis, Scotland
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A view of the mountain peak in between layers of Stratus, near Brenner Pass, South Tyrol, Italy
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