Main Cloud Types
- Cumulus
- Stratus
- Stratocumulus
- Altocumulus
- Altostratus
- Cirrus
- Cirrocumulus
- Cirrostratus
- Nimbostratus
- 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
Signs of asperitas and supercilium spotted during a morning drive from Charlottesville to Culpepper, Virginia, US
Signs of supercilium, an unofficial classification of a short-lived cloud feature that is likened to an eyebrow and usually forms in turbulent air flow over, and to the immediate lee of, steep mountain peaks. This example was spotted over Antwerp, Belgium.
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Supercilium, an unofficial cloud classification, spotted over Santa Cruz, California, US
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Signs of Supercilium cloud formations spotted over Santa Cruz, California, US
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Supercilium, an unofficial cloud classification for features that are short-lived, often referred to as 'eyebrow clouds', spotted over Rio del Mar Beach, Aptos, California, US
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Signs of potential supercilium and lacunosus spotted over Cape Town, South Africa
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Altocumulus lenticularis with signs of supercilium spotted over Mt. Shasta, California, US
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Signs of supercilium spotted briefly near Charlo, Montana, US
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Signs of supercilium, an unofficial classification for a cloud formation that resembles eyebrow-like features, spotted off the San Francisco coast, approximately five miles from Stinson Beach, California, US
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Supercilium are short-lived cloud formations that resemble eyebrow-like features and appear in turbulent airflow over, and to the immediate lee of, steep mountain peaks, as spotted here over Santa Barbara, California, US
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Supercilium in the foreground, accompanied by Fluctus (Kelvin-Helmholtz) near the horizon and Altocumulus lenticularis in between, spotted over the mountains during sunset over Wyoming, US
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Signs of supercilium spotted near Helena, Montana, US
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Signs of supercilium that Yuyang thought resembled migrating birds, spotted over Dalian, Liaoning Province, China
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Signs of Supercilium spotted shortly after sunrise over Madison, Wisconsin, US
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Signs of supercilium and lacunosus spotted near Mercogliano, Italy
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Signs of Supercilium spotted over the Southern Rockies, near Walsenburg, Colorado, US
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