Georgia, the Piedmont and WNC, and Upstate South Carolina warned of "very cold wind chills as low as 7 below expected." The warning will be active from 7 p.m. Tuesday to noon on Wednesday, Jan. 22. NWS representatives told the Citizen Times what hazards go along with these forecasts.

CHICAGO — National Weather Service officials issued a cold weather advisory in effect until 2 p.m. Tuesday for portions of central, east central and northeast Illinois as well as northwest Indiana. Officials said dangerously cold wind chills may reach as low as 28 below zero causing frostbite to those exposed to the frigid temperatures in as little as 30 minutes.

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.