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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
A classic example of a Fallstreak Hole (Cavum) spotted over California, US
Mammatus (Mamma) spotted over Petaling Jaya, Selangor, Malaysia
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Cumulonimbus over Hayward, Wisconsin, US
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Cirrocumulus lacunosus spotted over Gembes, Daverdisse, Belgium
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Pyrocumulus (Flammagenitus) in the shape of a heart minutes before eruption episode #51, per Amanda's description, as she was mesmerized by the weather that was created by the eruption at Kīlauea Volcano, Hawaii, US
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Reflections of Altocumulus, spotted near Sacramento, California, US
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Cirrus spissatus spotted over Modbury Heights, Adelaide, South Australia, Australia
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Remnants of a contrail spotted over Lisboa, Portugal
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Signs of mammatus (mamma) and virga within this developing, elevated storm near North Dundas Township, Ontario, Canada
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An advancing arcus, indicating the leading edge of a storm, spotted over Milano, Italy
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Cirrostratus spotted over Kirkkonummi, Finland
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Signs of virga spotted over Bellingham, Washington, US
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A developing Cumulonimbus spotted over Twisp, Washington, US
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Cumulonimbus spotted near Kingman, Arizona, US
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Virga spotted at sunrise over Wells, Somerset, England
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Altocumulus undulatus spotted during sunrise over Port Kennedy, Perth, Western Australia, Australia
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