A significant winter storm is set to impact the Chicago area and central Illinois this week, with snow accumulations forecasted between 3 to 8 inches by Wednesday evening. The region is bracing for what could be the largest snowfall of the season, with winter storm watches and warnings issued for multiple counties. Weather officials warn of potential travel disruptions and very poor commuting conditions, particularly on Wednesday. Residents are advised to prepare for icy conditions and heavy snowfall that may begin as early as Wednesday afternoon, with significant accumulations expected throughout the day.