January 22, 2014 (CHICAGO) -- A days-long stretch of frigid, subzero wind chills is just beginning in the Chicago area.
The wind chill in Chicago was minus 8 degrees at 4 a.m. Wednesday, while the actual temperature stayed steady around 2 degrees, according to the National Weather Service.
To prepare for the extreme cold, the Illinois Tollway activated 11 Zero Weather Road Patrols Tuesday to help customers stranded in their cars. Seven Illinois Tollway oases also serve as warming centers.
This particular blast of cold air is not the polar vortex itself, but rather a byproduct of the system that regularly moves through Canada and into the United States, meteorologists said.
By Friday, highs in the area are expected to climb to 24 degrees, falling to 15 at night, forecasts show.
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