As soon as below-zero temperatures hit each winter, everyone in the Northland knows we are sure to be in for a special treat as sundogs become frequent visitors in the sky.
For those unfamiliar with sundogs, they are defined by the National Weather Service as colored spots of light that develop due to the refraction of light through ice crystals and most commonly appear during winter in the middle latitudes around the globe.
Prisms usually appear on either or both sides of the sun, depending on where the ice crystals are present. The colors usually go from red closest to the sun, out to blue on the outside of the sundog.
