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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
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
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- Noctilucent
- Pannus
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- 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 Lunar Halo over North Ayrshire, Scotland, UK.
A maple tree and a cirrus spissatus cloud formation, both with "fingers" extending outwards, as seen over Seattle, Washington, US
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Crepuscular rays highlighting smoke coming from Canadian wildfires, spotted near Whiteface Mountain, Adirondacks, New York, US
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A rainbow showing itself over North Brunswick, New Jersey, US
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Sunset over Brisbane, Australia
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Cumulus congestus in the foreground, along with a dissipating cumulonimbus in the background, spotted over North Devon, England
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A plethora of cirrus cloud formations spotted over Lake Stevens, Washington, US
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Sunset along the Danube River in Europe
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Cumulus drifting over Western Iran
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An incoming storm over Jarzt, near Munich, Germany
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Sunset over Todd's Island on Spednic Lake, New Brunswick, Canada
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Sunrise near Port Richey, Florida, US
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A cloudbow as seen from above, by way of an airplane that took off from Curitiba, Brazil
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A storm system within which Roger noticed a shape of a boar, spotted over Gorse Hill, Ormskirk, England
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An expansive view of cumulus congestus spotted by Steven Granberg over Albuquerque, New Mexico, US
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A small dark cloud that looks like a small fish in a big pond, amidst a storm on the horizon, near Isle of Lewis, Scotland
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