Image Credit & Copyright: Peter Lowenstein
Explanation: Yes, but how many dark clouds have a multicolored lining?
Pictured, behind this darker cloud, is a pileus iridescent cloud, a
group of water droplets that have a uniformly similar size and so together diffract different colors of
sunlight by different amounts. The above image was taken just
before sunset when it was noticed by chance by a photographer in Murambi East, near Odzi Valley and the Mtanda
Range of Zimbabwe. Also
captured were unusual cloud ripples above the pileus cloud. The formation
of a rare pileus cloud capping a common cumulus cloud is an
indication that the lower cloud is expanding upward and might
well develop into a storm. In this case, however,
only a few minutes after the colorful cloud was
noticed, it disappeared.
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