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Main Cloud Types
- Cumulus
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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
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- Humilis
- Incus
- Intortus
- Lacunosus
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- Morning Glory Cloud
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- Mediocris
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- Noctilucent
- Pannus
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- Pileus
- Praecipitatio
- Radiatus
- Silvagenitus
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- 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 sunrise over Gent, Belgium.
A developing, robust storm near Antelope Valley, California, US
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A noteworthy storm approaching Tananger, Norway
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A myriad of clouds at sunset over Taylor, Texas, US
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A crossing of contrails that brings forth quadrants in the sky, spotted over Santa Rosa, California, US
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Altocumulus stratiformis spotted at sunset over Devanahalli, Bangalore, India
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A 'rainbow' and a piano in the foreground, spotted on land, along with an expansive view of the sky over Hualien, Taiwan
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Altocumulus spotted just prior to sunset over Oakland, California, US
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Fluctus (Kelvin-Helmholtz) spotted in the distance, over Windle, St Helens, Merseyside, England
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Sunset with various hues of orange and pink, spotted over Santa Rosa, California, US
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A peekaboo view of the sun over Taiwan
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A vibrant sky over Meizhou, Guangdong, China
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Stratocumulus over Kansai International Airport, Osaka, Japan
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Lacunosus, a short-lived formation, spotted over Island Beach State Park, New Jersey, US
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A unique perspective of a rainbow during the evening, wherein the view through the front window gave way to raindrops that looked like 'globules of mercury', spotted near Ormskirk, Lancashire, England
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A developing cumulonimbus spotted over Kraków, Poland
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