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Main Cloud Types
- Cumulus
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- Altostratus
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- Cirrocumulus
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- Nimbostratus
- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
- Cauda (Tail cloud)
- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
- Diamond dust
- Distrail
- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
- Homogenitus
- Horseshoe vortex
- Humilis
- Incus
- Intortus
- Lacunosus
- Lenticularis
- Mamma
- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
- Nebulosus
- Noctilucent
- Pannus
- Perlucidus
- Pileus
- Praecipitatio
- Radiatus
- Silvagenitus
- Spissatus
- Stratiformis
- '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 happy cloud over Port Orange, Florida, US.
Glory over West Thumb, United States
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A layer of stratus settles in near the coastline of Marengo, Australia
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Lacunosus over Brooklyn, Wellington, New Zealand
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Lunar iridescence over Piesendorf, Austria
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Contrails on display near the Estrella Foothills, Arizona, US
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A sky filled with colour over Reutlingen, Germany
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Moon and Venus in conjunction at twilight, visible in the sky and accompanied by altocumulus in the foreground, spotted near Bluff, Utah, US
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Cumulus reflected in the puddle of water near Atagohama, Fukuoka City, Japan
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Mamma over Thirlmere, Australia
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Altocumulus lenticularis over a mountain range near the airport in Ljubljana, Slovenia
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Layers of overcast over Washington D.C., US
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As Reven walked along the beach at sunset, she looked up and wondered; "Is the sky looking down at me with rose colored glasses, or could it be vice versa?" Sunset over La Baie Longue, Les Terres Basses, Saint Martin.
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Iridescence yielding multiple colours over Brighton, Colorado, US
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Cirrus over Asal Mountain, near Lar, Larestan, Iran
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A plethora of altocumulus lenticularis near Gulfoss, Iceland
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