The beauty of weather in all it's forms caught in pictures )0(
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Weird Weather, 2
Nacreous clouds are located in the stratosphere between 9 and 16 miles high. Their “mother of pearl” colors come from sunlight striking tiny ice crystals inside the clouds. Very low temperatures near -85 degrees C are required to form the crystals, which is why nacreous clouds are seen mainly during winter over places like Alaska, Iceland and Scandinavia.