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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 sighting of asperitas clouds over Hiawatha (just outside of Cedar Rapids), Iowa, US.
Stratus fractus spotted over Isle of Skye, Scotland
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Sunset over Chico, California, US
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A storm developing over Northwest Iran
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Crepuscular rays over Esfahan, Iran
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Pyrocumulus cloud in its early development, as spotted here by Linda's niece, is the result of Volcán de Fuego, one of Central America's most active volcanoes, located near Antigua, Guatemala
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Virga spotted over Bendigo, Central Victoria, Australia
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An approaching storm, with strong winds, hail, and torrential rain, caused notable damage throughout the city of Brisbane, Australia
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Altocumulus spotted over Taiwan
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Cumulus spotted over Zhongzheng District, Taipei City, Taiwan
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A mesmerizing view of altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Rossford, Ohio, US
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A view of precipitation that appears to be reaching the ground, spotted from atop Mount Ventoux, Provence, France
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A display of cirrus at sunset over Vermontville, Adirondacks, New York, US
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22-degree halo spotted near Birling Gap, Seven Sisters, East Sussex, England
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Stratocumulus spotted over Modbury Heights, Adelaide, South Australia, Australia
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Cumulus spotted beyond the hillside over Taiwan
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