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Main Cloud Types
- Cumulus
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- Stratocumulus
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- 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
Sunset with altocumulus lenticularis, framed by bare branches of a hawthorn hedge, near Ormskirk, West Lancashire, England
Cumulus congestus over Seaburn, Sunderland, England
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A storm system with a leading arcus, otherwise known as a shelf cloud, near Brighton, Colorado, US
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Cumulonimbus near North Dundas Township, Ontario, Canada
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The view during a scenic bike ride, a vast sky filled with clouds, spotted near Wolf Creek, Montana, US
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A view from above, with cumulus congestus in the distance, spotted over Henan Province, China
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Altocumulus stratiformis over Ocean Shores, Washington, US
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A 22-degree halo with an intersecting contrail, spotted over Rufford, West Lancashire, England
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Crepuscular rays and shadows amidst a late afternoon turbulent sky, near the Adirondacks, Vermontville, New York, US
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Undulatus over Whitley Bay, England
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A classic example of asperitas spotted over the Black Mountains, Western North Carolina, US
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A variety of cumulus over Northwest Iran
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Stratocumulus over Bangkok, Thailand
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A primary rainbow and a secondary bow spotted over Eastern Shore of Chesapeake Bay, Maryland, US
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A reflection of a sun pillar near Lough Ramor, Virginia, County, Cavan, Ireland
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Contrails and cumulus over Wenatchee, Washington, US
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