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Other Clouds
- Arcus
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- Cavum (Fallstreak hole)
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- Duplicatus
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- Fractus
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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
- 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 active sky with virga in the distance, near Winchester, Ontario, Canada
Cumulus over National Taipei University, Taiwan
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Cumulus spotted above the buildings in New York City, New York, US
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A plethora of colour on both the land and in the sky, during a spring sunset over Stephens Lake Park, Columbia, Missouri, US
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Moonrise over Bluff, Utah, US
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Iridescence over Malakwa, British Columbia, Canada
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Cirrus fibratus that is also bringing forth a couple of shadows between differing levels in the troposphere, spotted over Meinohama Fishing Port, Fukuoka City, Japan
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Virga via two distinct rows of clouds over Northern California, US
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A mixed sky that Janis described as a "party in the sky", spotted above Shingle Springs, California, US
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Cumulus congestus over Northern Iran
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A storm system in development over Lake Tuggeranong, Canberra, Australian Capital Territory, Australia
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Cumulus with cirrus fibratus towards the horizon, spotted over North Devon, England
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Altocumulus lenticularis over Cooper Bay on the eastern side of South Georgia, South Sandwich Islands, British Overseas Territory
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Cumulus fractus in the shape of a heart spotted over Boise, Idaho, US
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A colourful sky captured by John's friend, Aldo Brando, in Colombia, South America
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Following continuous rain for a number of days, the clouds cleared and signs of an apparent circumzenithal arc appeared in the sky over Mercogliano, Italy
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