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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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- Flammagenitus (Pyrocumulus)
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
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- 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
A Circumzenithal Arc over Broadway, NYC, US.
Cirrus vertebratus homogenitus, which developed from the remnants of a contrail, spotted over Lake Stevens, Washington, US
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A peaceful view from the peninsula at Punta Mita, Nayarit, Mexico
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Lenticularis over Alto, United States
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A colorful sunrise over the Adirondack Mountains, Vermontville, New York, US
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Cumulus congestus over Northwest Iran
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A grand display of virga, following a day that Martha described as being filled with cirrus uncinus, spotted over Asheville, North Carolina, US
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A late afternoon volutus (roll cloud) over the Kapiti Coast, North of Wellington, New Zealand
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An "X" marks the spot near this full moon, spotted over Blackhorse Lane, London, England
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Lunar halo and corona over Stanwood, Washington, US
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Sun Dog (Parhelion) soon after sunrise spotted over Nashville, Tennessee, US
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Sunset over Aratsu Beach as the sun appears from the clouds, spotted near Aratsu, Fukuoka City, Japan
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Cirrus fibratus homogenitus, which reflects a cloud that forms from a human source, such as contrails in this case, with the influence of strong upper level winds. This formation was spotted over Jedburgh, Scottish Borders, Scotland.
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Cirrus uncinus and fibratus, which can often be seen in the same view of the sky, as spotted here over Kasuga City, Fukuoka Prefecture, Japan
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Cirrus over Principe Real, Portugal
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Lunar halo and corona over Glouster County, New Jersey, US
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