Did you spot the sun dogs this morning? Channel 13 viewers shared beautiful photos of the sun dogs that lit up the Iowa sky on Tuesday.
According to the National Weather Service, the two-colored luminous spots appear at about 22 degrees on both sides of the sun at the same elevation. Parhelion, the scientific name for sun dogs, are caused by the refraction of sunlight passing through ice crystals. They are most commonly seen during winter in the middle latitudes and are exclusively associated with cirriform clouds.
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