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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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- 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 vibrant display of Cirrus unicnus, which in Latin means "curly hooks". This type of high-level cloud is also known as mares' tails, as spotted here over South Portland, Maine, US.
Pileus with iridescence spotted over Mantua, New Jersey, US
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A notable storm system in an area that Santiago described as formerly being desolate without any vegetation. Over the past few decades, Chinese forest rangers planted trees and gradually nurtured the environment back to life. Today, there are endless stretches of lush forest farms, as seen here near the Saibangba Forest Farm, Weichang County, Chengde City, Hebei Province, China.
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During a dry stretch, Linda was seeking rain, but it did not come to fruition with these particular clouds over Austin, Texas, US
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Signs of asperitas over Mount Hope Cemetery, Mapleton, Iowa, US
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A cascade of clouds over the Georgetown airport in Central Texas, near Georgetown, Texas, US
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Cumulus and stratus clouds co-existing near the mountains, spotted by Anuja's brother, Nikesh Sinha, while on a Kashmir Great Lakes trek near Zaj Pass, Kashmir, India
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Altocumulus over the Atlantic Ocean, near Porthmeor Beach, St Ives, Cornwall, England
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Crepuscular rays over Khomeynishahr City, Esfahan, Iran
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Cumulus humilis spotted during the late afternoon while visiting the lavender fields at Banstead, Surrey, England
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A cloud that looks like a large fish chasing a school of fleeing smaller fish, spotted over Atagohama, Fukuoka City, Japan
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A face in the sky gazing at a contrail, which looks to be an extension of the fishing pole, spotted over the Rogerstown Estuary, County Dublin, Ireland.
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A storm system with praecipitatio over Torrejon de Ardoz, Spain
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Cumulus spotted throughout the sky, over Randolph, Iowa, US
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A dynamic display of altocumulus lenticularis near Mt. Madison and Mt. Adams in the Northern Presidential Range, New Hampshire, US
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Altocumulus perlucidus spotted over Devanahalli, Bangalore, India
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