The National Weather Service reports on the Christmas Day blizzard for North and South Dakota and other plains states:
A major winter storm will continue to impact parts of the northern/central Plains and Upper Midwest with heavy snow, freezing rain, and strong winds through Tuesday night. The combination of heavy snow and strong winds (gusts up to 55 mph) will produce blizzard conditions for central South Dakota into parts of Nebraska, Kansas, and Colorado resulting in difficult to near impossible travel.
…BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY…
…Blizzard conditions. Additional snow accumulations of 4
to 9 inches and ice accumulations of up to one tenth of an
inch. Winds gusting as high as 55 mph.
In addition, some of the same areas also are under an Ice Storm Warning:
…ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST TUESDAY…Significant icing. Additional snow accumulations of up to one inch and ice accumulations of three tenths to one half of an inch. Winds gusting as high as 55 mph. …Until 6 PM CST Tuesday.
IMPACTS…Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage.