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Main Cloud Types
- Cumulus
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- Altocumulus
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- 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
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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 large and active storm system over Brighton, Colorado, US
A mature Cumulonimbus storm cloud over Ely, Cambridgeshire, England.
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Cumulonimbus capillatus storm cloud over Cornville, Arizona, US. This is the appearance of a storm cloud at its most mature stage of development.
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Cumulonimbus spotted over San Rafael, California, US
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A decaying storm system over Napa, California, US.
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A storm system over Brentwood, Missouri, US.
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Systems running out of energy over Bristol, England.
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A storm system over Brentwood, Missouri, US.
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A storm system over Jesi, Marche, Italy.
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A distant cloud Flower over the Salish Sea, Helliwell Bluffs, Hornby Island, British Columbia.
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A storm system with mamma over Cajeme, Sonora, Mexico.
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A storm system over Blairgowrie, Scotland.
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A storm cell over Mercogliano, Italy.
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A decaying storm system over Kamloops, Canada.
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A Cumulonimbus erupting at sunset over Eugene, Oregon, US.
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A storm system that is running out of energy over Nottingham Road, South Africa.
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