Like all late season systems, this will be a challenging one for snow amounts and impacts due to 1) a warm ground 2) air temperatures likely to be at or above freezing during much of the precipitation, and 3) rain and sleet mixing in with the snow across SE Iowa, NE Missouri and WC Illinois.
Confidence is greatest on impacts (heavy snow rates, slush and/or snow covered roads north of I-80 especially for the evening commute) where winter storm warnings and advisories remain in effect.
This will be heavy, wet snow where it accumulates and hazardous to shovel!
***Courtesy of the National Weather Service***