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Other Clouds
- Arcus
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- Cap / banner clouds
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
- Undulatus
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- Vertebratus
- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
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- Green flash
- Glory
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- 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
Signs of supercilium, an unofficial classification, characteristic of short-lived "eyebrow-like" cloud features, which appear in turbulent airflow over, and to the immediate lee of mountain peaks. These cloud features were spotted near Bandon Dunes Golf Resort, Bandon, Oregon, US.
The edge of a storm, spotted near Pitman, New Jersey, US
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Fluctus (Kelvin-Helmholtz) spotted over Crank, Merseyside, England
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Fluctus (Kelvin-Helmholtz) spotted over Northern California, US
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Asperitas is a relatively rare formation that seems to form in the vicinity of Cumulonimbus storm systems. Asperitas differs from undulatus by the fact that its waves are more chaotic and disorderly, lacking any of the regularity and organisation typical of undulatus. This classic example of asperitas was spotted over Northern California, US.
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Palm trees reaching upward towards the altocumulus clouds, spotted near Momochi Seaside Park, Fukuoka CIty, Japan
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An imposing storm which Lisa spotted from her boat, near Åland Islands, Finland
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A storm system approaches Huntington, Indiana, US
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An elongated version of altocumulus lenticularis spotted over Mammoth Lakes, California, US
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A view from above the clouds, over Lake Superior, Ontario, Canada
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A panoramic view of mammatus (mamma) over Lincoln, Nebraska, US
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On a cool evening, virga was spotted near the horizon over Twickenham, England
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The development of what appears to be an arcus, also known as a shelf cloud, marking the leading edge of a storm system near Lam Plai Mat, Thailand
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A storm system over Somerset, England
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Signs of storm development over Manzanita, Washington, US
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A bouquet of altocumulus spotted by Anuja's friend, Tanya Sinha, from an altitude of 2,900 metres in the Himalayas, near Kareri, Himachal Pradesh, India
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