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Main Cloud Types
- Cumulus
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- Stratocumulus
- Altocumulus
- Altostratus
- Cirrus
- 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
Towards the end of a summer day, there appears to be a storm system in the background, with a layer of stratocumulus in the foreground, spotted over the Mission Mountain Range, Ronan, Montana, US
Fog on an early August morning near Charlo, Montana, US
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A picturesque sunset over Charlo, Montana, US
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A colourful summer sunset accompanied by virga, near Charlo, Montana, US
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The view on a summer evening looking east towards the Mission Mountain Range, near Charlo, Montana, US
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Crepuscular rays making their way through a deck of stratocumulus at sunset over Charlo, Montana, US
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An afternoon downpour near Charlo, Montana, US
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Sunset over Charlo, Montana, US
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An early morning on the farm, wherein Ruth could hear the birds starting their day, near Charlo, Montana, US
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Crepuscular rays emanating down during the evening near Charlo, Montana, US
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Altocumulus lenticularis in the morning hours over Cascade, Montana, US
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The view during a scenic bike ride, a vast sky filled with clouds, spotted near Wolf Creek, Montana, US
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Subtle signs of dissipating lacunosus spotted near Bigfork, Montana, US
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A mesmerizing sunset near Charlo, Montana, US
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An early evening storm as seen when looking east towards the Mission Mountain Range, near Charlo, Montana, US
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A storm system developing near Charlo, Montana, US
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