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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
- 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
The trademark of a strong cumulonimbus cloud is the overshooting top, a "cauliflower-like" cloud structure extending above the anvil of the storm like a dome. Overshooting tops develop on thunderstorms that have powerful updrafts and they typically develop on Cumulonimbus capillatus incus, as spotted here near Sherman, Illinois, US.
Subtle crepuscular rays and iridescence spotted over the Carneddau Range, Conwy, Wales
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A plethora of optical phenomena spotted at sunrise over Baltimore, Maryland, US
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22-degree halo with signs of a tangent arc and a sun dog (parhelion), spotted over Veurne, Belgium
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Stormy skies over Badalona, Spain
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Altocumulus spotted during the morning over Fixin, Burgundy, France
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On a meaningful anniversary, Modestino spotted this Sun dog (Parhelion) in the early morning over Mercogliano, Avellino, Italy
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A contrail from the SpaceX Falcon 9 rocket launch at Vandenberg Space Force Base, spotted from Santa Barbara, California, US
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Stratocumulus spotted over Liberty Hill, Texas, US
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Altocumulus perlucidus spotted over Lucaston, Tasmania, Australia
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A unique view of Altocumulus lenticularis by way of a 2.5-minute long exposure photograph over the San Juan River, near Bluff, Utah, US
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A mixed sky over Seattle, Washington, US
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A dissipating storm in the foreground in contrast with a developing one on the horizon, spotted near Moss Landing, California, US
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A broad area of virga spotted in low humidity conditions near Brighton, Colorado, US
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A colourful sunset over Conwy, North Wales
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Cumulus congestus spotted over Petaluma, California, US
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