CHICAGO (CBS) ¯ 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. 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.
An elderly Chicago woman was the latest victim to succumb to the wicked weather. She died from hypothermia after being found outside wearing a coat and shoes just steps from her back stairs on the city's northwest side. She was the eighth person to die from the cold so far this season in Chicago.
Anyone heading out this morning should be advised that frost bite can set in after only about 30 minutes on exposed areas, according to the National Weather Service. Facts On Frostbite And Hypothermia
Temperatures sunk even further into the minus zone throughout Wisconsin.
Subzero weather has blanketed the state from Milwaukee to Superior. In the northwest Wisconsin town of Phillips, the air temperature was -27 Thursday morning – without the wind chill.