A Winter Storm Watch is in effect for much of Eastern and Central Montana.
Heavy snow will be moving through starting late Friday night and lasting through Saturday.
Light snow continues to fall on Sunday.
Snow totals will be half a foot or more in places like Lewistown, Glasgow, and Jordan.
Localized snowfall amounts up to a foot are possible.
Only a few inches of snow are expected in Great Falls and Helena.
Travel will be very difficult for most of the state this weekend.
Plan extra time, drive slow, and avoid travel if possible.