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Other Clouds
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- Vertebratus
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- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
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- 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
Crosswire view of altocumulus clouds with some virga over Carlsbad, New Mexico, US.
Altocumulus over Beaufort, South Carolina, US
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Asperitas clouds spotted over Seattle, Washington, US.
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A mixed sky, from low to high, of Stratocumulus, Altocumulus and Cirrus spotted over Papamoa, New Zealand.
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Sun Dog over Houston, Texas, US
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Mixed precipitation, accompanied by an Altocumulus Lenticularis, over the Adirondack Mountains in northern New York, US.
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Altocumulus over Camacha, Portugal
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Altocumulus over Portal Ridge Wildlife Preserve in Fairmont, California, US
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Stratocumulus observed over Mt. Yasur, Tanna Island, Vanuatu. George tells us there is an ash plume visible just beneath the cloud.
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Jellyfish of the sky, also known as Altocumulus clouds producing the evaporating precipitation trails known as virga, spotted drifting over Portland, Oregon, US.
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A classic cap cloud forming over Mount Rainier, Washington, US.
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A high formation of Altocumulus stratiformis undulatus, also known more poetically as ‘a mackerel sky’. Spotted over Bendigo, Victoria, Australia.
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Cumulus mediocris over Vermontville, New York, US.
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A stacked form of Altocumulus lenticularis, known by the French term pile d'assiettes, spotted over Cervinia, Italy.
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Altocumulus illuminated by the rays of sunrise with lower Stratocumulus lenticularis formations in shadow over Whiteface Mountain, Adirondack Mountains, NY, US.
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Altocumulus lacunosus spotted in the evening over Baltimore, Maryland, US.
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