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Main Cloud Types
- Cumulus
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- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
- Cauda (Tail cloud)
- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
- Diamond dust
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- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- 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
A sky full of Cirrus over Denver, Colorado, US.
One thought on “Larry Sessions”
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22-degree halo spotted near Devils Tower National Monument, Wyoming, US
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Sunrise over Reigate, England
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A plethora of contrails over St. Johnsbury, Vermont, US
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Altocumulus stratiformis perlucidus spotted over Seattle, Washington, US
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A feather-like contrail spotted in the morning sky over Atagohama, Fukuoka City, Japan
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Stratocumulus and crepuscular rays over Taitung, Taiwan
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Altocumulus lenticularis spotted over Los Alamos, New Mexico, US
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A funnel cloud spotted over Aurora, Colorado, US
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Contrails and cumulus in harmony above the Suffolk countryside, spotted over the Ickworth House, Suffolk, England
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Cumulus clouds spotted on a spring morning over Dernancourt, Adelaide, South Australia, Australia
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Sun Dog (Parhelion) spotted over Allen, Texas, US
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Fallstreak Hole (Cavum) spotted over Leichhardt, New South Wales, Australia
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Altocumulus spotted over a long road in the countryside, near Goodyear, Arizona, US
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Sunset over Taiwan
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When Lisa first saw this sky, she thought it would be a good quiz for cloudspotters; 'how many different kinds of clouds can one identify?' And it appears that the sky agreed by way of a visible question mark, as spotted here over Bellport Bay, Long Island, New York, US.
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Nice feathery clouds, thanks!
Martha Kelly