A look at some of our favorite images of the week.
Winter weather in the U.S. A person struggles to cross a street in blowing and falling snow Jan. 5 in St. Louis. Snow that began in parts of Missouri on Jan. 4 picked up intensity after dawn the next day; several inches of snow were on the ground by mid-morning. n addition to the snow in the Midwest and Northeast, a “polar vortex” — a winter blast of extreme Arctic air — brought bitter cold to much of the United States early this week. Buy Photo
Read about the polar vortex. Jeff Roberson/AP