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Main Cloud Types
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Other Clouds
- Arcus
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- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
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- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
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- '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 sunset over the Olympic mountains, Washington, US.
Crepuscular ray at sunrise over Wellington, Aotearoa, New Zealand
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A thick layer of Stratus envelopes the hillside, spotted by Suraiya Essof over Signal Hill, Cape Town, South Africa
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Signs of Fluctus (Kelvin-Helmholtz) spotted over Deurle, Belgium
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Reflections of the sky following a storm that ushered in significant flooding in parts of California, with this view spotted in Antelope Valley, California, US
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Virga spotted in the evening over Fujian, China
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Stratocumulus spotted over Flatland at Samora Correia, Portugal
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Cumulus mediocris spotted from Puget Sound, Seattle, Washington, US
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Altocumulus perlucidus spotted over Zhongzheng District, Taipei City, Taiwan
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A developing storm system spotted over Central Federal District, Russia
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Altocumulus lenticularis duplicatus spotted over Pueblo, Colorado, US
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Altocumulus spotted over Taipei City, Taiwan
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An exquisite pattern at sunset near Waianae, Hawaii, US
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Cap Cloud spotted over Mt. Shasta, California, US
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Altocumulus perlucidus spotted over Hilo, Hawaii, US
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Altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Dehradun, Uttarakhand, India
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