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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
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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 lenticularis over the Lofoten Islands, Norway.
A storm system with what appears to be a microburst occurring close to shore, spotted near Boca Raton, Florida, US
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Altocumulus over National Taipei University, Sanxia District, Taiwan
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Altcoumulus radiatus over Kingston, Ontario, Canada
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Arcus, also known as a Shelf Cloud, is a long, dark, horizontal roll or shelf running along the base of the storm cloud’s front edge, so it is the first cloud feature to arrive as the storm approaches an area. This storm system was spotted over Danforth, Ontario, Canada.
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Iridescence with multiple colors spotted over Tacoma, Washington, US
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Sun Dog (Parhelion) and reflections in the water near Salerno, Italy
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Flying high in the upper reaches of the troposphere, near Taoyuan City, Taiwan
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Sunrise over Etobicoke, Ontario, Canada
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Two different layers of passing clouds, which Aditi described as the "varying pace of contrasting beauties", spotted over India
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Glory over Waiotapu, New Zealand
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Asperitas over Winnipeg, Manitoba, Canada
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Asperitas spotted over Surrey, British Columbia, Canada
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22-degree halo is seen as the sunlight is refracted through the ice crystals of thin layers of high clouds, such as cirrostratus in this case. Note how it 'ceases to exist' where there are no thin layers of clouds present. This example was spotted over Lake Stevens, Washington, US.
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Iridescence over New Taipei City, Taiwan
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Crepuscular rays over Khomeyni Shahr, Esfahan Province, Iran
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