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Main Cloud Types
- Cumulus
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- Altostratus
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- Cirrocumulus
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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
A view of Altocumulus stratiformis undulatus, also known as a 'mackerel sky', from above Onondaga County, New York, US
Altocumulus lenticularis duplicatus, also known as 'pile d'assiettes', spotted in the lee of Mount Pantokrator, Corfu, Greece
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Villarica volcano has active vents, one of which created this unique volcanic vortex ring, also known as a 'smoke' or 'vapour' ring, while simultaneously in the distance there were altocumulus lenticularis forming. Bob spotted these developments while climbing Villarica volcano in Chile.
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A Sierra Wave over the Sierra Nevada Mountain range in California, US.
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Cumulus cloud streets over the East Midlands of England.
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The Morning Glory over Burketown Australia.
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Horseshoe vortices, seen at the front of a Morning Glory cloud at Pabdanus Station which is approx halfway between Doomadgee and Burketown, Australia.
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The belt of Venus and earth shadow on the horizon over the Eastern Ghats, Araku, near Visakhapatnam, India.
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A contrail highlighted by a setting sun under a stratocumulus layer as part of the nor'west arch on the eastern side of the southern alps, inland from Christchurch, South Island, New Zealand.
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A Chinook arch over Calgary, Alberta, Canada.
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A Beechcraft Bonanza (from Savannah Aviation) taking tourists on a scenic flight along a Morning Glory Cloud, near Burketown in North Queensland, Australia.
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The Morning Glory cloud, spotted from a glider over Burketown, Australia.
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The Morning Glory cloud, spotted from a glider over Burketown, Australia.
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The Morning Glory cloud, spotted from a glider over Burketown, Australia.
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The Morning Glory cloud, spotted at sunrise from the cockpit of a glider over Burktown, Gulf of Carpentaria, Australia.
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A Chinook Arch formation over the Helena valley, Montana, US.
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