Wow..!! Imagine how dangerous this would be if it weren't for global warming..!! http://cbs2chicago.com/national/midwest.cold.snap.2.636835.html Upper Midwest Locked In Dangerous Cold Snap Temperature Drops To -31 In Northeastern Minnesota; Frostbite Can Set In Within Minutes CHICAGO (CBS) β Bitter, dangerous cold has descended on the Upper Midwest for the second time in less than a week, with the air temperatures falling to 27 below zero in some parts of Wisconsin and 30 below in Minnesota. In Chicago early Wednesday morning, the temperature fell to -4 at O'Hare International Airport. It was slightly warmer downtown at 2 degrees, but in west suburban Aurora, temperatures bottomed out at -11. But to make matters worse and more dangerous, a northwest wind of 13 mph sent wind chill factors plunging to -22 at O'Hare. By mid-day, temperatures had climbed only to 8 degrees in Chicago.