Fire Rainbow


Photo: Lisa Foss

Forget the Double Rainbow, there's a new celestial phenomenon that makes us yelp "OMG what does this mean?"

Lisa Foss of Ely, Minnesota saw this brilliant display of what some colloquially term a "fire rainbow" on Monday, while another show popped up in Edgewood, Texas on Saturday.

The rainbows are caused by ice crystals in the thin, distant clouds being at just the correct angle to refract the sunlight into the colors of the prism.

Meteorologist Scott Sistek of KATU has the post: Link - Thanks Tiffany!

atoptics.co.uk has an article on "Circumhorizon arc" that mentions the term "Fire rainbow" once in the naming of the phenomena "circumhorizon arc (also a circumhorizontal arc but never 'fire rainbow')" and once in the footnotes "** 'Fire rainbow' - This ridiculous and unrecognised name appears to have been coined by a journalist after the great 2006 Spokane display. The halo is not a rainbow and has nothing to do with fire."

Source: http://www.atoptics.co.uk/halo/cha2.htm
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