A severe winter storm is set to impact Illinois and Wisconsin, prompting the National Weather Service to issue blizzard warnings for northwestern Illinois and winter storm warnings/advisories for other areas. The storm is expected to bring a mix of snow, sleet, and ice, with snow accumulations ranging from two to nine inches depending on location. High winds, gusting over 40 mph and potentially reaching 50 mph, are also forecast, which could lead to blowing snow, reduced visibility, hazardous driving conditions, and isolated power outages.