Chicago is dealing with a foot and a half of snow, freezing rain is falling in the Northeast and the wind chill is in the 20s here in the Sonoran Desert.

FORBES: Weather Underground unveils new look

Officials in Wyoming and South Dakota closed portions of major highways as blowing snow decreased visibility and freezing rain made roads treacherous.

NPR: Spring Storm Crawls Eastward; Dumps Snow, Rain

After the severe weather, a cold-weather system could bring snow and freezing rain to the Midwest, beginning Wednesday, and the threat of extremely cold weather in the northern Plains states and Upper Midwest, particularly on Thursday.

CNN: STORY HIGHLIGHTS

CHEYENNE, Wyo. (AP) A chilly spring storm was making its way eastward Wednesday after heavy snow and freezing rain prompted hundreds of flight cancellations, stranded motorists and knocked out power to thousands in several Western states.

NPR: Spring Storm Crawls Eastward; Dumps Snow, Rain

Louis received all of the above a treacherous mix of snow, sleet and freezing rain.

NPR: Winter Storm Blankets Great Plains With Snow

Elsewhere, Arkansas saw a mix of precipitation in places, a combination of hail, sleet and freezing rain, others saw 6 inches of snow.

NPR: Winter Storm Blankets Great Plains With Snow

Up to a foot of snow fell in southwestern North Dakota, along with freezing rain and sleet.

NPR: Spring Storm Crawls Eastward; Dumps Snow, Rain