Current radar and surface observations show snow slowly working into the area from the west-northwest and should be here by around 11 am. Again, with temperatures as cold as they are, it will be a very fluffy snow with around an inch is expected from this first round today. The cold temperatures will also lead to slick conditions on the roadways, as salt is less affective at tempetarures below 10-15 degrees. Calcium chloride can be added to the salt mix though to help that melting process.
We will see a second round track across the region again tomorrow. Below is a GIF of the 00Z NAM 3KM model of that event. The heaviest snow will track to the west and south of the Rockford area, where 2-4″ of snow is possible and for the Rockford area, 1-2″ is possible according to the NWS. Though I am keeping an eye on a model trend that could give us a little more snow than that. More recent model runs of the NAM and NAM 3KM are showing a little more liquid precip in them with again temps around 12-15F meaning a 20:1-30:1 snow to water ratios and fluffier snow that can add up more.
This is something I will continue to watch so expect an update later this afternoon!