Flights canceled, highways closed as winter storm wallops US

Cathy Morgan-Mace cleans snow and ice off her family’s car during a snowstorm in Salt Lake City, Utah, on Wednesday. A brutal winter storm knocked out power in California, closed interstate highways from Arizona to Wyoming and prompted more than 1,200 flight cancellations Wednesday — and the worst won’t be over for several days. (Kristin Murphy/The Deseret News via AP)

PIERRE, S.D. — A brutal winter storm closed interstate highways from Arizona to Wyoming Wednesday, trapped drivers in cars, knocked out power to hundreds of thousands of people and prompted the first blizzard warning in Southern California in decades — and the worst won’t be over for several days.