A winter weather advisory has been issued for the Chicago area, with forecasts indicating light to moderate snowfall this weekend. As an active La Niña climate pattern continues to influence weather, residents can expect multiple rounds of snow, impacting travel and road conditions throughout northern Illinois and southern Wisconsin. Light snow and icy conditions are anticipated, leading to potential slick roads. Various regions, including parts of New Hampshire, are also bracing for light snow ahead of a blast of cold air. As temperatures fluctuate, the chances of snow will remain regular into the upcoming week, prompting cold weather alerts across affected areas.