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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
A colorful mosaic over Lake Stevens, Washington, US
A lone cumulus cloud along with faint crepuscular rays spotted from Jimbaran Beach, Bali, Indonesia
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Crepuscular rays over Amsterdam, Netherlands
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Sunset with textures of clouds over Port Aransas, Texas, US
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Sunrise over the Atlantic Ocean, near Boca Raton, Florida, US
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A peaceful view from the peninsula at Punta Mita, Nayarit, Mexico
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A colorful sunrise over the Adirondack Mountains, Vermontville, New York, US
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Sunset over Aratsu Beach as the sun appears from the clouds, spotted near Aratsu, Fukuoka City, Japan
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Stratocumulus clouds moving into the area shortly after sunset over North Austin, Texas, US
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Sunset over Union County, Ohio, US
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The leading edge of what appears to be a cold front passing over Rufford, West Lancashire, England
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Sunrise with fog and mist over Ningbo, China
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A colorful, mixed sky captured by Gail Stewart near Alameda, New Mexico, US
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Altcoumulus radiatus over Kingston, Ontario, Canada
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Sunrise over Etobicoke, Ontario, Canada
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Sunrise near Baltimore, Maryland, US
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