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Other Clouds
- Arcus
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- Velum
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- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
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- Circumscribed halo
- Circumzenithal Arc
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- Diffuse arcs
- Green flash
- Glory
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- Iridescence
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- 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
A lenticular cloud at sunset over southern Alberta, Canada. The clouds often accompany strong "chinook" winds on the lea side of the Canadian Rockies. These dry, warm 'snow-eater' winds can abruptly melt as much as a foot of snow in one day, rapidly raising temperatures as much as 40°C (75°F).
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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A giant fish was seen when Kate looked up at the sky over Hadfield, Derbyshire, England
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Cirrostratus undulatus, which Janet saw as resembling a herringbone, spotted during the evening near Tavistock, Devon, England
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With the sun rising behind Aldo Brando, the photographer, these anti-crepuscular rays were spotted. Anti-crepuscular rays appear when tall clouds in front of the rising or setting sun cast long shadows across the sky which can be seen receding off into the distance when facing away from the sun, as was the case here, near Bogota, Colombia.
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A storm system near Gibsons, British Columbia, Canada
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Signs of fluctus (Kelvin-Helmholtz) spotted over Solihull, England
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