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Main Cloud Types
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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
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- 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
Rainbow over t Horntje, Netherlands
Cap Cloud over Mt. Rainier, Seattle, Washington, US
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A contrail visible at night thanks to the moonlight over Fort Salonga, Long Island, New York, US
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A distrail, short for dissipation trail, forms when an aircraft flies through a supercooled cloud, such as with this altocumulus, as its usually either frozen or supercooled and can show distrails. This example was spotted over Falls Church, Virginia, US.
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Cavum (Fallstreak Hole) spotted over Lynchburg, Virginia, US
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A vivid display of color and texture within these altocumulus clouds over northwest Ohio, US
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A mixture of altocumulus and cirrocumulus spotted over blades of grass near Hohnstein, Saxony, Germany
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A colorful mixture of clouds over San Leandro, California, US
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Altocumulus perlucidus spotted over Pocheon, Gyeonggi-Do, South Korea
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Storm system with signs of asperitas over West Chester, Pennsylvania, US
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Sun Dog (Parhelion) over Beijing, China
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Undulatus at sunrise over Lake Stevens, Washington, US
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Low-level stratocumulus and stratus near El Paso, Texas, US
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Cap cloud over Mt. Rainier, Seattle, Washingon, US
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Crepuscular rays shining down on the sea via a view from a drone, over Sagres, Algarve, Portugal
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