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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
Mamma spotted over Barrea, L'Aquila, Italy
An arcus, indicating the leading edge of a thunderstorm, spotted near Holly Springs, North Carolina, US
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Crepuscular rays that emanate like a spotlight over Navarra, Spain
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Cumulonimbus illuminated by lightning and reflected in Stony Lake, Ontario, Canada
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Cumulonimbus incus, indicative of a mature thunderstorm, spotted over Tbilisi, Georgia
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A pari of Cumulonimbi spotted over Vero Beach, Florida, US
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Following a storm overnight, signs of Asperitas spotted in the morning over Bauru, São Paulo, Brazil
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Cumulonimbus spotted during an evening walk at sunset, near Fishers, Indiana, US
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A developing Cumulonimbus spotted over Tuckahoe, Virginia, US
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During an active thunderstorm, Kerstin's husband captured an illuminated Cumulonimbus during the frequent lightning strikes, spotted near Biesdorf, Berlin, Germany
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A stormy sky over Sant Adrià de Besòs, Catalunya, Spain
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Mamma spotted over Springfield, Missouri, US
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Cumulonimbus incus spotted over Tucson, Arizona, US
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Primary and secondary rainbows spotted over Vermontville, Adirondacks, New York, US
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A developing storm spotted over Eastern Shore of Chesapeake Bay, Maryland, US
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Cumulonimbus spotted over Croatia
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