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Main Cloud Types
- Cumulus
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- Cirrocumulus
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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
Lenticularis over Los Alamos, New Mexico, US.
Northern Lights (Aurora Borealis) spotted over North Dundas Township, Ontario, Canada
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A pink sky over Passirac, France
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Dissipating fog at sunrise over Irvine, California, US
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A unique juxtaposition of lacunosus with a vivid display of the Northern Lights (Aurora Borealis), spotted over Southern Alberta, Canada
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Stormy skies over Los Alamos, New Mexico, US
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Iridescence spotted over Twisp, Washington, US
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Cirrus spotted on a windy day near Mt. Royal, Northern Hunter Valley, New South Wales, Australia
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A mixture of pink and blue during sunset over Denver, Colorado, US
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A leading edge of a storm system near Antwerp, Belgium
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Sunset captured by Carol's friend, David Hasenstab, from a houseboat on Lake Union, Seattle, Washington, US
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Cumulus spotted over Mypolonga, South Australia, Australia
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A storm system with a seagull perched in the foreground, spotted over the Meinohama fishing port, Fukuoka City, Japan
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Cirrocumulus with signs of lacunosus spotted over Bethany, Oklahoma City, Oklahoma, US
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Stratocumulus spotted over Sanxia, New Taipei City, Taiwan
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A heart-shaped cloud spotted shortly before dusk from the Pompano Beach Pier, Pompano Beach, Florida, US
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