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.

Another arctic cold day with single digits is ahead for the Chicago area. Cold weather advisories remain in effect until 2 p.m. on Tuesday and extreme cold warnings for western suburbs last until noon.

Ben Johnson made a decision. Aaron Glenn could be next. With Johnson heading to Chicago and Mike Vrabel already in New England, five head coaching vacancies remain.