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Main Cloud Types
- Cumulus
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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
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- Humilis
- Incus
- Intortus
- Lacunosus
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- 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 lone Altocumulus lenticularis in its simplest form spotted by Rhode's son, over Brooklyn, New York, US
A canvas of clouds and colour at sunset over Vermontville, Adirondacks, New York, US
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Subtle crepuscular rays at sunrise, prior to a day of hot temperatures, high winds, and intermittent thunderstorms over central Indiana, US
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A storm system hovering over Mt. Shasta, California, US
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An arcus, also known as a shelf cloud, marks the leading edge of a thunderstorm's gust front, spotted here with a storm system that generated a tornado warning near Omaha, Nebraska, US
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Cumulus congestus along the horizon, following stormy weather in the prior days, spotted looking north over Belfast Loch, near Bangor, Northern Ireland
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An expansive storm yielding heavy rain, spotted near Mendip Hills, Somerset, England
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Altocumulus undulatus radiatus over Noville, Switzerland
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Altocumulus lenticularis duplicatus, also known as 'pile d'assiettes', spotted at sunset over Torrejón de Ardoz, Spain
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Crepuscular rays at sunset over Odo Yacht Harbor, Fukuoka City, Japan
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A sunset view that takes on the look of a painting, viewed near Vermontville, Adirondacks, New York, US
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Crepuscular rays spotted at sunset over Mengelrode, Germany
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Altocumulus lenticularis with signs of supercilium spotted over Mt. Shasta, California, US
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Altocumulus lenticularis duplicatus spotted over Faverges de la tour, France
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Fallstreak Hole (Cavum) spotted over Northampton, England
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Virga highlighted by what appears to be anti-crepuscular rays, accompanied by a rainbow, spotted over Somerset, England
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