O'FALLON, Mo.—Icy winter weather blanketed the United States on Saturday as a wave of Arctic storms threatened to break low-temperature records in the heartland, spread cold and snow from coast to coast and cast a chill over everything from football playoffs to presidential campaigns.
As the three-day Martin Luther King Jr. Day holiday weekend began, the weather forecast was a crazy quilt of color-coded advisories, from an ice storm warning in Oregon to a blizzard warning in the northern Plains to high wind warnings in New Mexico.
