Yeah the differences the last few winters are stark. I will look at RFD numbers also just to remove LES and enhancement totals that ORD and MDW receive. Gives a better idea about general synoptic snow activity across Northern IL in a given winter. Not a huge stats guy but have to guess there is a substantial difference in numbers over the years between DFW and RFD. As for Lake Michigan enhancement, synoptic snow systems have been in short supply here the last few years.