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Main Cloud Types
- Cumulus
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- Stratocumulus
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- Altostratus
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- 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
A solitary altocumulus lenticularis spotted by Beatrice's daughter, Ineke Vereecken, while visiting Isle of Skye, Scotland
Sunset over the Bonnie View Nature Sanctuary, Columbia, Missouri, US
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With the sun high in the sky and behind John, he spotted these contrails, one of which cast a shadow on both the clouds and distant mountains, west of Deming, New Mexico, US
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A 'dragon ship' spotted over Antelope Valley, California, US
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Homogenitus via a prior contrail, which Robin described as 'strange and beautiful', spotted over Montclair, New Jersey, US
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A colourful sunset captured by David's son, Craig West, over Callerton, near Newcastle upon Tyne, England
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Sunset over Rangeley Lake, Franklin County, Maine, US
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Cirrus vertebratus spotted over Roanoke, Virginia, US
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A distal "cutting through" a sun dog over Barmstedt, Schleswig-Holstein, Germany
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Sunset on a summer evening near Taylor, Texas, US
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A "whale" cloud borne out of a contrail, breeches above the trees, as spotted over Ravenna, Seattle, Washington, US
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The view shortly after take-off from Dulles Airport, Virginia, US
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Fluctus (Kelvin-Helmholtz) resembling the waves below, spotted near Tofino, British Columbia, Canada
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Remnants of contrails (homogenitus) over Krzeszowice, Poland
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Sun Dog (Parhelion) spotted over Crank, St. Helens, Merseyside, England
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Contrails (Homogenitus) over Seaburn, Sunderland, England
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