Long-standing records are poised to fall as the polar vortex sends extremely cold air into the north-central, midwestern and northeastern United States.States of emergency have been issued in Wisconsin, Illinois and Michigan due to the extreme cold with many schools and businesses closing until the frigid air loosens its grip on the region later this week.Minneapolis could break low temperature records originally set back in the 1800s, and Chicago could challenge it’s all-time record low of minus 27 F, set on Jan. 20, 1985.
