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Main Cloud Types
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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
- 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
Altocumulus lenticularis near Bermeo, Bizkaia, Spain
Nacreous over Mesnali, Norway
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Sun Dogs, also known as a Parhelion, on a cold day near Brighton, Colorado, US
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Cirrocumulus over Jilin Province, China
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Fallstreak hole, also known as a cavum, spotted shortly after sunrise near Plaquemine, Louisiana, US
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Layers of stratus near La Plagne Montalbert, France
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Rainbow over Woodvale, Australia
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Cumulus and cumulus fractus populate the sky over Northwest Iran
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Sunset captured by Jean's friend, Mattie Hunter, looking west from an elevation of 2,000 feet in the Appalachian Mountains in northeast Georgia, US
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A stretch of cumulus clouds that may be developing into a storm, spotted by Chandrani's friend, Frano Mika, during the morning hours over Rijeka, Croatia
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An expansive display of altocumulus in advance of a winter storm, spotted near Walburg, Texas, US
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Cirrocumulus stratiformis over Khomeynishahr, Esfahan, Iran
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Altostratus undulatus spotted over Wellingborough, England
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Cirrostratus undulatus at sunrise over Arnhem, Netherlands
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Virga over Sachuest, United States
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Remnants of a storm that took place while Reven was watching a movie at the Grand Lake Theater, Oakland, California, US
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