Meteorological optical phenomenon

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    Optical Phenomenon
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The discussion centers on a photograph capturing unique cloud formations, particularly a central tip illuminated by sunlight and fanlike structures above the cloud. These structures are identified as shadows cast by the sun, not digital artifacts. The presence of cumulus clouds suggests atmospheric instability, while the reflections and shadows indicate a hazy layer typical of stable high-pressure inversions. Participants speculate whether these phenomena could be related to a transient cold front. Crepuscular rays are also mentioned as a potential explanation for the observed effects. A link to a resource on atmospheric optics is provided for further details.
DaveC426913
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Snapped this pic the other day. At first, I was drawn by the subtlety of the central tip of the cloud, which is illuminated by reflected light from the sunlit mound of cloud between it and us, but I was wowed by these fanlike structures in the sky above the cloud.

Those are not digital artifacts or anything, they are naked-eye effects. They are some sort of shadow, cast over the top of the cloud by the sun. I don't quite understand what phenomenon has created them though. Any takers?
 

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That's most unusual. The cumulus cloud clearly indicates instability while the reflections and shadow indicate a hazy smoggy layer which usually only exist in stable high pressure subsidence inversions.

So, could this be a transient cold front just about to pass? Just a guess.
 

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