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Other Clouds
- Arcus
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- Silvagenitus
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- '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
Altocumulus radiatus indicates instability at mid-atmospheric levels and often signaling approaching stormy weather. This was true in this case as Bernhard indicated that it rained only two hours later, near the English Garden, Munich, Germany.
Altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Penobscot Bay, Maine, US
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Cirrus fibratus radiatus spotted over Middle Bolton Lake, Bolton, Connecticut, US
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Altocumulus stratiformis radiatus over Westdorf, Baltrum, Germany
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Altocumulus undulatus radiatus over Brisbane, Australia
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Altocumulus undulatus radiatus spotted over West End, Brisbane, Australia
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Altocumulus undulatus radiatus spotted over Taringa, Queensland, Australia
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Altocumulus stratiformis radiatus over Troy, Michigan, US
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A classic example, as well as a mesmerizing display, of altocumulus stratiformis radiatus, spotted by Travis and his students at Santa Rita Middle School, Liberty Hill, Texas, US
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Altocumulus undulatus radiatus over Nokonoshima Island, Fukuoka City, Japan
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Altocumulus radiatus over Sequim, Washington, US
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A grand display of Cirrus vertebratus radiatus over Brean, Somerset, England
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A magnificent reflection of Cirrus radiatus over Svalbard, Norway
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Radiatus over Barmera, South Australia.
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Clouds radiate towards the horizon over Perth, Scotland.
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Undulatus radiatus over Blairgowrie, Scotland.
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