A pedestrian stops to take a photo by Chicago River, as bitter cold phenomenon called the polar vortex has descended on much of the central and eastern United States, in Chicago, Illinois, U.S., January 29, 2019. REUTERS/Pinar Istek
The James J. Versluis, a 90-foot icebreaker tugboat, breaks ice through Lake Michigan in Chicago, Illinois, U.S., January 29, 2019. (Photo/Agencies)
Icicles form on the walkway at North Avenue Beach of Lake Michigan in Chicago, Illinois, U.S., January 29, 2019. (Photo/Agencies)
Pedestrians cross the street at rush hour, as bitter cold phenomenon called the polar vortex has descended on much of the central and eastern United States, in Chicago, Illinois, U.S., January 29, 2019. (Photo/Agencies)
The city skyline is seen from the North Avenue Beach at Lake Michigan, as bitter cold phenomenon called the polar vortex has descended on much of the central and eastern United States, in Chicago, Illinois, U.S., January 29, 2019. (Photo/Agencies)
