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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
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- Green flash
- Glory
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- Helic arc
- Infralateral arc
- Iridescence
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- Moonbow
- Moondogs
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- Parry antisolar arcs
- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
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- Sub-sun
- Suncave parry arc
- Sun dog (Parhelion)
- Sun pillar
- Supernumerary bows
- Subparhelic circle
- Supralateral arc
- Upper tangent arc
- Wegener arc
A colorful, mixed sky captured by Gail Stewart near Alameda, New Mexico, US
Cumulus congestus prior to a storm developing near Torrejon de Ardoz, Spain
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Cirrus uncinus amidst a mixed sky over Greenfield, California, US
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Lacunosus and undulatus are both present in this mixed sky over New Taipei City, Taiwan
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Cirrus uncinus high above a multitude of clouds over Bethlehem, Pennsylvania, US
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A mixed sky which Benjamin says reflects an approaching warm front near Vale of White Horse, Oxfordshire, England
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Altocumulus in both its stratiformis and lenticularis forms, along with undulatus and cumulus fractus in this mixed sky over Neibla, near Valdivia, Chile.
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An abundance of cumulus, altocumulus, and cirrus clouds populating the sky, which prompted Yun to say that it felt like opening a map for clouds over Gwangju-si, South Korea
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A mixed sky over Malakwa, British Columbia, Canada
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A mixture of cirrus, cumulus, and stratus clouds in the morning sky over Hedekas, Sweden
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Colorful sky over Port Clinton, Ohio, US
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Sunset with crepuscular rays and shadows, with an emphasis on the latter, as seen over West Chester, Pennsylvania, US
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A varied sky that upon first glance, as John noted, looked like a cloud shaped like a Black Labrador Retriever leading a few storm clouds ashore. However, upon closer look, it's actually a cloud shadow that is cast onto the underside of the higher level Altocumulus clouds. This mixed sky was spotted over Vero Beach, Florida, US
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A mixed sky with a contrail making its mark, nearly perpendicular to a host of other contrails, accompanied by altocumulus in the distance and stratus fractus in the foreground. This view was observed near Wells, Somerset, England.
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A mixed sky over Boyaca, Colombia
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A mixed sky, inclusive of what appears to be Fallstreak Holes (Cavum) within the stratocumulus cloud layer, over Bluff, Utah, US
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