Polar vortex 2019: Record cold grips the Midwest: a winter storm is moving through the area, potentially causing white-out conditions and dumping a half-foot of snow. Saturday, Jan. 19, 2019, in Chicago. The storm has resulted in snowy and icy roads throughout northern Illinois, some Metra delays and more than 600 cancellations at the city’s airports. Temperatures could dip into the single-digits Sunday night, and don't forget strong wind, that literally blasting on the shoreline.