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Main Cloud Types
- Cumulus
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- Stratocumulus
- Altocumulus
- Altostratus
- Cirrus
- Cirrocumulus
- Cirrostratus
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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
Undulatus spotted by Dan's friend, John Maltese, from the shore of Lake Pleasant in the southern Adirondacks, Speculator, New York, US
Mesmerizing iridescence spotted near Blowing Rock, North Carolina, US
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Sunset over Puget Sound near Edmonds, Washington, US
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Sunset over Kingsthorpe, Northampton, England
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Puffs of white throughout the sky over Wimborne, Dorset, England
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A snow-like landscape in the sky over Somerset, England
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A colourful sunset over Columbia, Missouri, US
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Summer sunset over Rumwell, Somerset, England
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Sunset over Momochi Seaside Park, Fukuoka City, Japan
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Reflections in the marina, captured near Berkeley, California, US
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Horseshoe vortex spotted over Leuven, Belgium
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A mesmerizing sunset over Charlo, Montana, US
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A mixed sky over Georgetown, Texas, US
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An oyster or a fish spotted at sunset over Albuquerque, New Mexico, US
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During a dry stretch, Linda was seeking rain, but it did not come to fruition with these particular clouds over Austin, Texas, US
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Altocumulus over the Atlantic Ocean, near Porthmeor Beach, St Ives, Cornwall, England
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