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Main Cloud Types
- Cumulus
- Stratus
- Stratocumulus
- Altocumulus
- Altostratus
- Cirrus
- Cirrocumulus
- Cirrostratus
- 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
Cirrus and Altocumulus sharing the sky, spotted by Anuja's friend, Madhavi Surabhi, over the Twelve Apostles, Port Campbell National Park, Victoria, Australia
Sunset over Lisboa, Portugal
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22-degree halo spotted over Ferndown, Dorset, England
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Crepuscular rays spotted over Stroud, Gloucestershire, England
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Stratocumulus over Conwy, North Wales
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Cumulus spotted over Horseshoe Bend, Colorado River, Arizona, US
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A lunar 22-dagree halo spotted over Dallgow-Döberitz, near Berlin, Germany
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Cirrus uncinus accompanied by Cumulus fractus, spotted over Rotterdam, The Netherlands
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Mammatus (Mamma) spotted over St. Louis, Missouri, US
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A developing Cumulonimbus towering over Corinth, Texas, US
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A colourful display of virga spotted over Ipswich, England
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Cumulus clouds meeting in the sky over Sumiyoshi Shrine, Fukuoka City, Japan
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A contrail splitting the sky, spotted amidst altostratus over Arnhem, The Netherlands
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A colourful sunset spotted by David's son, Craig West, near Newcastle upon Tyne, England
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Remnants of contrails spotted over Taipei City, Taiwan
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Altocumulus lenticularis spotted over Greenfield, California, US
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