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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
- 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
A view of the mountain peak in between layers of Stratus, near Brenner Pass, South Tyrol, Italy
Signs of asperitas in the afternoon over Curtin, Canberra, Australia
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Altocumulus stratiformis spotted over Luxembourg City, Luxembourg
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Cumulus congestus spotted above the willows, over Jiangsu, China
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A rabbit spotted in the sky over Killesberg, Stuttgart, Germany
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Cumulus that looks like a dog's head looking to the side, spotted over Vancouver, Washington, US
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Moon Dogs, also known as paraselenae, a rare optical phenomenon, spotted along with a 22-degree lunar halo over Sumirago, Varese, Italy
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Sunset accompanied by mammatus (mamma) clouds, following heavy rain in Karachi, Pakistan
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Altocumulus lenticularis amidst a golden sky near Tangier, Morocco
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A colourful sunset over North Dundas Township, Ontario, Canada
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A cold front accompanied by a stormy sky near Holland, Michigan, US
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A mesmerizing sunrise for the fishermen at Marinatown Seaside Park, Fukuoka City, Japan
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A sunset view captured by Haruko's son, Ben, while visiting Magnolia, Kentucky, US
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Signs of supercilium spotted briefly near Charlo, Montana, US
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Sunrise over Oakland, California, US
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Altocumulus perlucidus spotted during sunrise over York, England
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