Latest trends have been weaker and slightly further south Monday night through Tuesday. At worst we may see a narrow band with 3 or 4" amounts in northern Illinois storm total. I only except a trace amount for southern WI. Temperatures will be cold enough to support accumulation should it occur. Peak timing during the afternoon/early evening hours on Tuesday but could see flurries throughout the period south of I-94. A northward shift is possible but unlikely and haven't seen any model support for that. Overall little to no impact with this system.