This is a view of the middle fork of the Flathead River, not far from the west entrance to Glacier National Park. The elevation in this location is only 3,194 feet, so this would definitely qualify as lowlands in Montana. The light dusting of snow that can be seen in the picture probably doesn’t amount to even a quarter of an inch. Still, this is before the storm is due to hit.
The storm will be a big one probably.
For them to give a warning two days in advance, I fear you are right.