Metrodome's dome collapses

(CNN) -- A powerful snowstorm barreled east through the Midwest on Sunday, bringing with it more precipitation and gusty winds and leaving behind a trail of significant damage, large snow drifts and subarctic temperatures, according to the National Weather Service.
Winter storm warnings and advisories Sunday extended as far west as Illinois, as far east as Pennsylvania, and as far south as northern Alabama and Georgia.
Meanwhile, residents of the upper Midwest who braved at-times blizzard conditions on Saturday faced the prospect Sunday night of wind chills dipping, in spots, as low as 30 degrees below zero. This comes after up to 23 inches of snow fell in parts of Minnesota and as many as 18.5 inches in Wisconsin since Friday.
"We could see wind chills (that are) obviously extremely dangerous for people, to have that kind of exposure for any length of time," said Tod Pritchard, a spokesman for the Wisconsin Emergency Management agency.