1. since the change in pattern on or about 1/15 Chicago has done quite well as some predicted.
2. Though I don't see anything big imminent, any of these waves may surprise, and if not repeated 1-2 " fluuffers every 24 hours are on the table. I get, not for everyone. But it is a deep winter pattern with a deep snow pack.
3. I don't see a way out of this cold pattern without a decent storm.
4. I'm not an expert, Instinct , pattern recognition, historical reference.