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Residents of Isle of Palms, South Carolina, were surprised by what they saw in the sky this past Sunday. A so-called “fire rainbow,” a twisted and colorful cloud, appeared in the sky and lingered for about an hour. The technical term for these phenomena is circumhorizontal arcs, and they occur in high-level cirrus clouds which are made up of tiny ice crystals.
“To produce the rainbow colors the sun’s rays must enter the ice crystals at a precise angle to give the prism effect of the color spectrum,” said meteorologist Justin Lock, adding the sun must be at an altitude of at least 58 degrees above the horizon. “Again, it has to do with getting the precise angle.”
(h/t: 14news)
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South Carolina residents were surprised to see this on Sunday
Image credits: Jackie Hill
Turns out, this is a “fire rainbow,” or “circumhorizontal arc”
Image credits: 3rdnlong /
“They only occur in high-level cirrus clouds made up of tiny ice crystals” explains meteorologist Justin Lock
Image credits: sseaburd
“To produce the rainbow colors the sun’s rays must enter the ice crystals at a precise angle to give the prism effect of the color spectrum”
Image credits: Christy Cawley
The sun must be at an altitude of at least 58 degrees above the horizon
Image credits: Tracey Smith / accentsbyalex
Image credits: ginknowsabe
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JackieDrown 9 years ago
As a child I always looked up to the sky and let my imagination go. At 77 I still do and have been rewarded with many beautiful shows that Nature gives us. Jackie Drown
TintenfischVomStrand 9 years ago
I took a picture of such a rainbow in Thassos this year. So incredible!
JackieDrown 9 years ago
As a child I always looked up to the sky and let my imagination go. At 77 I still do and have been rewarded with many beautiful shows that Nature gives us. Jackie Drown
TintenfischVomStrand 9 years ago
I took a picture of such a rainbow in Thassos this year. So incredible!
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