[8:10 P.M. Thursday, January 19, 2023] Rain has changed to light snow here at NWS Chicago in Romeoville, as well as much of the Chicago metro and points west. Radar shows the broad circulation of the low pressure across the Great Lakes that will bring some snow showers through midnight and flurries through Friday morning. No accumulation is expected with the relatively mild ground and pavement temperatures. | US National Weather Service Chicago Illinois

Radar loop from NWS Lincoln and NWS Chicago radars, centered on a tornado-producing supercell moving through central and northeast Illinois on November 17, 2013. This supercell produced a total of 5 tornadoes, including the high end EF-4 Washington tornado. | US National Weather Service Chicago Illinois

A "prolonged" period of lake effect snow is heading to the Chicago area Friday and Saturday, with bursts of snow possible for some, six or more inches of accumulations for others and a band of snow building over Lake Michigan set to wobble between northeast Illinois and northwest Indiana.⁠ ⁠ The incoming system prompted the National Weather Service to issue winter storm warnings, watches and winter weather advisories for multiple counties as the snow band continues to develop.⁠ ⁠ NBC 5 meteorolo