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Main Cloud Types
- Cumulus
- Stratus
- 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
22-degree Halo and Sun Dogs as seen from Lilstock Beach, Somerset, England
Altocumulus amidst a colorful sky near Boca Raton, Florida, US
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Cumulus fractus over Lake Maggiore, Italy
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A colorful sky near Boca Raton, Florida, US
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Sunset near Fuzhou City, Fujian, China
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Sunset near Glommen, Halland, Sweden
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Sunset over Busan, South Korea
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Cumulus fractus being illuminated by the rays of the sun, near Livingston, Montana, US
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Sunset over Greenville, Texas, US
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Crepuscular rays over Crank, Merseyside, England
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Cumulus fractus amidst a colorful sunset over Star, Idaho, US
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Altostratus stretching out over Rufford, West Lancashire, England
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Cumulus towers dissipating at the end of day with Altocumulus and Altostratus above and beyond.
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Setting sun masked by Altostratus over Sumirago, Italy
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Cloud ridges known as undulatus in a mixed sky after a four-day blizzard spotted from the North Shore (Silver Bay) of Lake Superior, Minnesota, US.
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Low orographic clouds cover the peaks of Mingus Mountain and Prescott National Forest in Arizona, US.
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