For now, there are essentially two main tracks the low pressure could take once it strengthens near the Texas and Oklahoma Panhandles. Track #1 is the track the GFS and European models suggest, which is shown above. That particular track would take the low right over Rockford. If that happens, much of the region would be in the "warm sector" of the system with warmer air surging north from the Gulf of Mexico. That would result in temperatures in the middle to upper 30's, meaning mostly rainfall for the Stateline. Heavy snow and blizzard-like conditions will be located to our northwest if this solution occurs.
That is about as in-depth as we can get with this system now. Just be aware that a strong system will affect the region Tuesday, and there will be a lot of precipitation associated with it. By Sunday afternoon, we will have a better idea of what kind of precipitation and how much of it we will see, so be sure to check back!