Here is a great product from the NWS (www.srh.noaa.gov/ridge2/snow/) showing the snowfall totals of the last two days. I chose the last two days since some snow from the event fell before 7 am on Sunday. The heaviest amounts were concentrated over central Illinois, including 18.5 inches at Springfield. It was very impressive for a late season snowfall. NWS Lincoln has a listing of the snowfall totals from the storm.