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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
- 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
Signs of Altocumulus lenticularis over Chimacum, Washington, US
Altocumulus perlucidus spotted over Cambridge, England
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Subtle crepuscular rays over Khomeynishahr City, Esfahan, Iran
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Cumulonimbus spotted near sunset over Guna, Madhya Pradesh, India
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A stormy sky that produced rain near Goodyear, Arizona, US
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Cumulus congestus spotted over Modbury Heights, Adelaide, South Australia, Australia
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Cumulus fractus in the light of sunset, spotted over Vancouver, Canada
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Afternoon sky in São Paulo City, Brazil
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A subtle sun pillar spotted near Arnhem, The Netherlands
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A distrail slicing through Cirrocumulus stratiformis undulatus, spotted over Highland Lake, East Andover, New Hampshire, US
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Cumulonimbus spotted over Petaling Jaya, Selangor, Malaysia
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Mamma (Mammatus) spotted over Valinhos, São Paulo, Brazil
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Cirrus vertebrates spotted over Middlebury, Vermont, US
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A mesmerizing display of Cirrus uncinus spotted during sunset near Eksjö, Sweden
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Altocumulus spotted over northwest Iran
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Signs of Asperitas spotted over Stafford, Virginia, US
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