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Main Cloud Types
- Cumulus
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- Stratocumulus
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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 sighting of asperitas clouds over Hiawatha (just outside of Cedar Rapids), Iowa, US.
A colourful, stormy sky over Jabalpur, Madhya Pradesh, India
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Subtle crepuscular rays visible during sunset over Sumirago, Varese, Italy
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Virga spotted near Pfronten, Bavaria, Germany
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Crepuscular rays spotted in the morning hours over Madison, Wisconsin, US
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Stratocumulus spotted over the mountains near Pocheon, Gyeonggi Province, South Korea
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Altocumulus spotted over Sanxia District, New Taipei City, Taiwan
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Cumulus spotted over the Pacific Ocean at sunset, near Waikalua, Hawaii, US
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Altocumulus reflected in the water near Meinohama fishing port, Fukuoka City, Japan
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Cumulus fractus spotted over Bodega Bay, California, US
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A line of Cumulus congestus spotted by Anuja's son, Aarant Sarangi, near Andaman and Nicobar Islands, India
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A view of a partial rainbow spotted over North Dundas Township, Ontario, Canada
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A developing storm system spotted looking south from Columbia, Missouri, US
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A colourful sunset accompanied by a contrail 'intersecting' a full moon, spotted over Vermontville, Adirondacks, New York, US
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Cumulonimbus incus spotted over Puigcerdà, Spain
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Stratocumulus with lower level Stratus spotted over Campbelltown, New South Wales, Australia
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