Illinois tornado from December 27

This one slipped past me somehow...I am usually right on top of tornado video surfacing in the media. Anyway, this tornado was filmed last Saturday afternoon in Monee, Illinois, not too far south of Chicago. Strangely enough, this tornado does not show up on the SPC's reports from that day. Let's hope the video is authentic, but it is very well done and this looks like quite a damaging tornado.