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Other Clouds
- Arcus
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- 'Supercilium' (not official classification)
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Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
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- Infralateral arc
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- 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
Altocumulus stratiformis undulatus, also known as a mackerel sky, was captured by Carl McGarrigle, who also remarked 'I forgot to iron the sky this morning'. This classic example was spotted over Preston, Lancashire, England.
Altocumulus stratiformis undulatus, also known as a mackerel sky, spotted over Boca Raton, Florida, US
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Fallstreak Hole (Cavum) spotted over Sydney, Australia
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Altocumulus stratiformis spotted at sunset over Devanahalli, Bangalore, India
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A mixed sky over Fixin, Burgundy, France
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Altocumulus over Devanahalli, Bangalore, India
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A plethora of cirrocumulus spotted over Chicago, Illinois, US
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A colourful display of undulatus over Oulton Broad, Suffolk, England
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Altocumulus over Seoul, South Korea
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Altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Ipswich, Suffolk, England
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On an early summer afternoon, Junichi spotted what appeared to be clouds that were dancing over Hakata Station, Fukuoka City, Japan
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Altocumulus stratiformis radiatus over Bentworth, Hampshire, England
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A vivid reflection of altocumulus over Surry, Maine, US
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Altocumulus stratiformis undulatus spotted over Mt. Batur, a volcano on the island of Bali, Indonesia
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Altocumulus stratiformis over Weymouth, Dorset, England
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Undulatus over Hyderabad, India
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