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
An ephemeral glimpse of supercilium, an unofficial classification for a short-lived cloud formation that resembles eyebrow-like features, spotted over the mountains on a cold and windy day in Montevergine, Mercogliano, Italy
On an early frosty morning, there are signs of supercilium developing amongst the stratocumulus clouds over the Mission Mountain Range near Charlo, Montana, US
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Supercilium, an unofficial classification for a cloud formation that resembles eyebrow-like features, spotted near Snoqualmie Pass, Washington, US
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Signs of supercilium, an unofficial classification for a cloud formation that resembles eyebrow-like features, spotted over Brighton, Colorado, US
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Cumulus congestus with some signs of supercilium spotted over Dongnae-gu, Busan, South Korea
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Altocumulus stratiformis and lenticularis, with signs of supercilium in the distance, spotted over Malakwa, British Columbia, Canada
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Supercilium, an unofficial classification for a cloud formation that resembles eyebrow-like features, spotted over Braithwaite, Cumbria, England
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Supercilium, an unofficial classification for a short-lived cloud formation that resembles eyebrow-like features, spotted over Dongnae-gu, Busan, South Korea
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Supercilium, an unofficial classification for a short-lived cloud formation that resembles eyebrow-like features, spotted over Keswick, Cumbria, England
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Altocumulus lenticularis in multiple variations, as well as in a stacked form, which is known as Pile d'assiettes, over the North Lake District, Cumbria, England.
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Cloud formation that resembles supercillium, an unofficial term representing eyebrow-like features, over the Westfjords, Iceland
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Lacunosus, coupled with what appears to be the development of 'Supercilium' (unofficial term), which are short-lived thin wisps of clouds appearing to tumble and break in a turbulent way in airflow over, and to the immediate lee of, mountain peaks. Spotted near Acadia National Park's Cadillac Mountain in Maine, US.
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A UFO-shaped Altocumulus lenticularis formation, and eyebrow-like features, with the unofficial name supercilium, forming in the turbulent air in front, spotted over Palm Springs, California, US.
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Altocumulus lenticularis spotted over Franklin County, Alabama, US, as well as some of the cloud holes called lacunosus and some of the eyebrow-like features that becoming unofficially known as 'supercilium'.
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