Some folks in North Dakota could be without electricity until tomorrow, after a heavy springtime snowstorm.
Three people were killed in a North Dakota highway pileup blamed on icy roads and blowing sleet and snow.
Schools are closed and thousands of homes and businesses are without power.
An electric cooperative in North Dakota says entire towns may be blacked out until tomorrow.
The Black Hills of South Dakota got the heaviest snow, nearly two feet.
A spokeswoman for the Wyoming Transportation Department says there are four-foot drifts in places.
A foot of snow had fallen at Bowman, North Dakota, prompting the sheriff to remark, "I wish I was in Hawaii."