Photos: Amazing cloud formations around the Sound this week

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Various cloud formations around the Puget Sound region
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  • Various cloud formations around the Puget Sound region
  • Various cloud formations around the Puget Sound region
  • Various cloud formations around the Puget Sound region
  • Various cloud formations around the Puget Sound region
  • Various cloud formations around the Puget Sound region
  • Various cloud formations around the Puget Sound region
  • Various cloud formations around the Puget Sound region
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Various cloud formations around the Puget Sound region
These colorful clouds are called "Circumhorizontal arcs" or, more informally, "Fire Rainbows." They're caused by the ice crystals in the cloud being at just the correct angle to the sun to refract the light into the colors of the rainbow. More details here:. (Photo courtesy: Pigs-Hens and Berries)