Dangerous cold arrives Monday morning in Chicago. The brutally cold morning brings wind chills of -20 to -25 degrees. A cold weather advisory is in effect until noon. The core of the polar air will settle across the Chicago area Monday night into Tuesday morning.

A dangerously cold stretch of weather is arriving in the Chicago area on Sunday, and the frigid temperatures bring a lot of health and safety concerns. Chicago's Office of Emergency Management and Communications is activating warming centers around the city to give people a place to go if they need it.