Rare 'fire rainbow' lights up sky

Phenomenon created by refraction of sunlight by ice crystals


RYE, N.H. – A fiery sight in the sky above New Hampshire had plenty of people looking up Wednesday. 

The colorful arc in the sky is called a "fire rainbow." 

According to the National Weather Service, the phenomenon is a refraction of sunlight by ice crystals. 

Forecasters say it typically occurs in the summer when the sun is high in the sky. 


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