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The severe winter weather in northwest Indiana was followed by numerous 'sundog' sightings Tuesday. The National Weather Service in Chicago describes 'sundogs' as "a pair of brightly colored spots on the circumference of the sun halo, often located directly apart from each other. They form as a result of sunlight being refracted by ice crystals. These are most commonly caused by cirrus clouds which are composed of ice crystals. However, crystals were present in the lower atmosphere on January 6th due to both blowing snow as well as light cloud development. Because the lower atmosphere was so cold these lower clouds were composed of ice crystals." You can see photos from around Indiana and Illinois submitted to the National Weather Service. Click here to see them: https://www.facebook.com/US.NationalWeatherService.Chicago.gov
(Photo/Colleen Zana, Zana Photography)
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