Another snow storm moved from the Upper Midwest into the Great Lakes on Friday causing heavy snow and air traffic delays. Heavy snow began falling in the Chicago area early in the day and by late afternoon most areas had between 6 and 9 inches. The storm responsible for the snow is continuing to move east prompting heavy snow warnings for southern Michigan, northern Indiana and northern Ohio. Snowfall is expected to reach 4 to 8 inches in most of these areas. Cold air is following the storm so it looks like a very white Easter for much of the Great Lakes.