This past week there was a 130-vehicle accident here in Wisconsin. Same conditions - whiteout weather from snow and/or windy "ground blizzard," plus idiotic driving.
Note that just pulling the car onto the shoulder was not a satisfactory escape mechanism for drivers encountering the pileup. Some drivers fled on foot as far as possible.
The video is 14 minutes in duration, but not much substantive happens after the first 6:00.