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Other Clouds
- Arcus
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Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
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- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
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- Sub-sun
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- Sun dog (Parhelion)
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- Supernumerary bows
- Subparhelic circle
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- Upper tangent arc
- Wegener arc
Cumulonimbus spotted near Kingman, Arizona, US
A glory, an optical phenomenon observed when gaining elevation, is seen when the sun is directly behind a person, as it casts a shadow on to a layer of cloud or mist. The glory is produced by cloud/water droplets reflecting, refracting, and diffracting sunlight. This classic example was spotted from Pigeon House Mountain / Didthul, Morton National Park, New South Wales, Australia.
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Reflections of virga during sunset over a lake near Stockholm, Sweden
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Pileus spotted over Bestwig, North Rhine-Westphalia, Germany
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Primary and secondary rainbows following the passage of a storm near Brighton, Colorado, US
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Cumulonimbi spotted throughout the sky over Atagohama, Fukuoka City, Japan
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A plethora of optical phenomena observed over Chilliwack, British Columbia, Canada
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Noctilucent clouds are primarily composed of ice crystals at heights 50-70 miles above the earth's surface and form during the summer when temperatures in the mesosphere are coldest. Temperatures lower than about -120 degrees Celsius are required for its formation. This classic example was spotted during a flight between JFK airport in New York, US, and Heathrow airport in London, England.
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An expansive view of a severe thunderstorm that produced large hail and heavy rain near Brighton, Colorado, US
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A plethora of contrails spotted after sunset over Prague, Czech Republic
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A classic example of Mammatus (Mamma) spotted over Villefranche sur Mer, France
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Corona spotted over Wells, Somerset, England
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A frontal passage marked by an arcus, the leading edge of a thunderstorm, spotted over Boothbay Harbor, Maine, US
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Altocumulus lenticularis duplicatus, also known as 'pile d'assiettes', spotted over the Cascade Mountains, near Vancouver, Washington, US
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Noctilucent clouds spotted over the Keyhaven River, near Lymington, Hampshire, England
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Mammatus (Mamma) spotted over Rome, Italy
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