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Main Cloud Types
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Other Clouds
- Arcus
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- Cap / banner clouds
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- Cavum (Fallstreak hole)
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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
- Crepuscular rays & shadows
- Diffuse arcs
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- 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
Formation of cirrus fibratus, thanks in part, to the remnants of earlier contrails over Williston, Vermont, US.
22-degree halo over Bigfork, Montana, US
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A face in the clouds – is it Salvador Dalí? – spotted over Greenfield, California.
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A lunar corona caused bye the moonlight shining through a high layer of ice crystals known as a Cirrostratus cloud, spotted over Pisa, Italy.
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The pastel colours of cloud iridescence formed by sunlight shining through the lenticularis form of Cirrocumulus clouds over Geneva, Illinois, US.
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An aircraft condensation trail with the 'zipper' appearance that can sometimes be produced by the effect of turbulence around the aircraft wings.
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The ice crystals in Cirrus, Cirrostratus and aircraft contrails over Singen, Germany formed the optical effect known as a parhelic circle. This is the horizontal bright band of light level with the Sun appearing in the cloud regions.
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A contrail crosses a sky of Cirrocumulus and Cirrus fibratus spotted by Cristina while training for an Ironman in the Adirondack Mountains, New York, US.
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A sunrise over San Antonio, Texas, US.
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A sunset over Istanbul.
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A sundog over the Uckermark, Germany.
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A sunrise over Erm, Netherlands.
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Contrail over Claremont, United States
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A giant bird over Curtin, Canberra, Australia.
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A contrail filled sky over Wimborne in Dorset, England.
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A sunset over the Northwest Arm of Halifax Harbour, Canada.
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