Midwest cities scramble to keep homeless from dangerous cold

Moorhead, MN area elementary school electronic sign shows to temperature Tuesday, Jan. 29, 2019. Daytime temperatures in the Fargo-Moorhead area were near -20F as frigid weather grips the area. (AP Photo/Bruce Crummy)

Frost covers part of the face of University of Minnesota student Daniel Dylla during a morning jog along Mississippi River Parkway Tuesday, Jan. 29, 2019, in Minneapolis. Extreme cold and record-breaking temperatures are crawling into parts of the Midwest after a powerful snowstorm pounded the region, and forecasters warn that the frigid weather could be life-threatening. (David Joles/Star Tribune via AP)

BISMARCK, N.D. — Winter’s sharpest bite in years moved past painful into life-threatening territory Tuesday, prompting officials throughout the Midwest to take extraordinary measures to protect the homeless and other vulnerable people from the bitter cold, including turning some city buses into mobile warming shelters in Chicago.