An arctic blast that killed at least 23 people in the United States should ease over the weekend, replaced by erratic temperatures that will melt snow and ice and cause more problems.
The bitter cold in Chicago has kept hospitals busy, with doctors at one facility during the brunt of an Arctic freeze treating 50 frostbite victims, including some people who may lose an arm or a leg.
In a matter of minutes, visibility for people brave enough to go out onto streets in the Northeast deteriorated quickly Wednesday as whipping winds brought snow squalls.