As we go into the week, there's a large cold front extending across much of the northern US that will be causing quite a few problems. Below is what the current precip looks like.
The precip above will intensify as the storm funnels into a tighter area. This means that less areas will see precip, but those in the heart of it will have quite the headache. Places like St. Cloud MN for example will be seeing 11-15" of snow Monday. Below shows Monday mid-day and how the storm will become narrow but heavy.