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Main Cloud Types
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Other Clouds
- Arcus
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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
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- Lower Tangent Arc
- Moonbow
- Moondogs
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- 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
Reflections of cumulus near Mahajeran, Iran
Nacreous over Odenslund, Sweden
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An impressive view of a developing cumulonimbus from the top of the Partenio mountains looking towards the top of Monte Stella twenty kilometers away, spotted in Italy.
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A mixed sky near Vermontville, Adirondacks, New York, US
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Altocumululs undulatus radiatus over Twisp, Washington, US
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22-degree halo over Cotia, São Paulo, Brazil
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A sunset filled with altocumulus lenticularis and contrails, spotted over Sumirago, Varese, Italy
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Sun Dog (Parhelion) spotted over Ormskirk, Lancashire, England
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A sun pillar on a morning that registered a brisk 3 degrees Fahrenheit (-16 degrees Celsius) in Jenison, Michigan, US
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Noctilucent over Zahran, Jordan
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Kelvin-Helmholtz over Wingates, United Kingdom
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From above and next to the clouds, a unique view of storms developing over Miami, Florida, US
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A vivid corona is spotted when the sun shines through a thin cloud and a bluish-white disc of light with a ruddy outer edge is on display, often surrounded by rings of iridescent colours. This classic example was seen by Cassie Eismann near Fort Scott, Kansas, US.
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Stratocumulus over Pocheon, Gyeonggi Province, South Korea
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Supercilium, an unofficial classification for a short-lived cloud feature, which appear in turbulent airflow over, and to the immediate lee of, steep mountain peaks during periods of strong mountain summit level winds. This classic example was spotted near Busquistar, Andalusia, Spain.
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Virga over Brisbane, Queensland, Australia
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