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Main Cloud Types
- Cumulus
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- 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
Stratocumulus in the distance, spotted near Qom City, Iran
A chasm in the sky over Napoopoo Beach Park, Hawaii, US
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Altocumulus lenticularis spotted in the early morning over Mission Mountain Range near Ronan, Montana, US
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Stratocumulus spotted over Lisboa, Portugal
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Crepuscular rays over Wembury Beach, Devon, England
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Crepuscular rays spotted over Funchal, Madeira, Portugal
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Sunrise over University of King's College and Dalhousie University, Halifax, Nova Scotia, Canada
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Limited crepuscular rays spotted at sunset over Taylor, Texas, US
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Upper level winds and subsequent wind shear creating a unique ring around the Cumulus clouds, spotted at sunset near Medford, Massachusetts, US
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Nearing sunset over West Loch Tarbert, Argyll, Scotland
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A view from above the clouds, near the Nez Perce Reservation, Pierce, Idaho, US
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Crepuscular rays at sunset over the Atlantic Ocean, spotted off the coast of Morocco, North Africa
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Crepuscular rays at dawn over Avebury, Wiltshire, England
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A crisp, radiant morning view over the lake called Oosterplas, 's-Hertogenbosch, The Netherlands
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From a view above and below the clouds, Daniela's daughter, Jasmina, spotted crepuscular rays during a flight to Malta
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Signs of Supercilium spotted shortly after sunrise over Madison, Wisconsin, US
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