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Main Cloud Types
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Other Clouds
- Arcus
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- Cap / banner clouds
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- Translucidus
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- 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
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- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
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- Moonbow
- Moondogs
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- 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 classic example of mammatus (mamma) spotted over Terrassa, Barcelona, Spain
Stormy skies over Los Alamos, New Mexico, US
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A leading edge of a storm system near Antwerp, Belgium
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A storm system with a seagull perched in the foreground, spotted over the Meinohama fishing port, Fukuoka City, Japan
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A storm system that moved out to sea, spotted from the South Coast of New South Wales, Australia
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A developing storm system over North Devon, England
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Asperitas spotted over Cambridge, Ontario, Canada
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A storm system with mammatus (mamma) spotted near Isle of Lewis, Scotland
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Sunset reflections following the passage of a storm, spotted over Berrow Beach, Somerset, England
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Following a humid day, a notable storm developed over the Tasman Sea, near Manly, New South Wales, Australia
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A vivid primary rainbow along with a subtle secondary bow, spotted shortly before sunset over Sumirago, Varese, Italy
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A September sunrise during monsoon season near Taos, New Mexico, US
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A panoramic view of primary and secondary bows over Dartmoor, Devon, England
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Mammatus (Mamma) and subtle signs of asperitas spotted over Kamloops, British Columbia, Canada
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Pannus beneath a storm system, spotted over Los Alamos, New Mexico, US
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A rainbow beneath the storm, spotted over Blairgowrie, Perthshire, Scotland
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