A5 THE DAILY ASTORIAN • FRIDAY, FEBRUARY 1, 2019 AP Photo/Mark Lennihan Ice forms on tree branches as New York fi refi ghters battle a blaze in a commercial building in Brooklyn. Polar vortex brings frigid temps The Daily Astorian C latsop County was largely spared the frigid temperatures from the polar vortex this week. People elsewhere in the country were chipping off layers of ice and shoveling snow as the thermometer dropped well below freezing in the Midwest. Cities like Chicago and Minne- apolis were colder than parts of Antarctica, but forecasters predict the areas should begin to thaw this weekend as warmer air moves into the region. Tony V. Martin/The Times of Northwest Indiana Anthony Wahl/Janesville Gazette A fi refi ghter is covered with ice at a fi re in Hammond, Indiana. Nathan Tearman, front center, gets help from his brother James as they shovel the driveway of their home in Janesville, Wisconsin. David Joles/Star Tribune Armando L. Sanchez/Chicago Tribune People sleep in tents near a wooded area in Chicago. Water vapor rises above St. Anthony Falls on the Mississippi River as the Stone Arch Bridge is obscured in Minneapolis.