Potential Increasing for Snow Next Week across Great Lakes

Now before I set off an alarm, I have to say that this is still a whole week away, and plenty can change.  So don't take anything I say here as true, but stuff that has potential to happen.  Now, let's get started.  This will all start around the weekend after Thanksgiving.  On Saturday the 26th, an area of low pressure moves up, producing warm air and showers across the Western Great Lakes:

By the following Tuesday, however, the GFS shows that cold air moves southward, creating a snowy situation for folks across the Western Great Lakes:

The snow would in general be light, however accumulation would most certainly be possible, especially if a bout of heavier snow occurs in association with any possible embedded storm systems.  The snow was looking even worse for these areas yesterday afternoon, and there is no reason to say it won't go back to that.  Stay tuned on this one.