Bill Steffen, the weather blogger at WOOD TV in Grand Rapids, has a neat post about a phenomena called a fire rainbow.  Basically, sun at a certain angle can refract through ice crystals in cirrus clouds.  This splits the sunlight into its component colors - a rainbow.  Check out Bill’s post and some neat photos at the link below:

http://www.woodtv.com/global/story.asp?s=8317679

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