Chicago is preparing for a higher likelihood of storms as a cold front moves into the area, starting Thursday night and lasting through Friday. CBS News reports that this weather system is likely to bring rain showers and isolated thunderstorms to the region. The approaching cold front is part of a broader pattern of unsettled weather across the Midwest. The National Weather Service predicts that the front will cause fluctuating temperatures and increased cloud cover, both of which are essential for thunderstorm development. The greatest chance of storms is expected in the late afternoon and evening on Friday as the front passes through the Chicago metropolitan area.