A potent surge of Arctic air starts settling in Monday evening as a massive dip in the jet stream pulls in frigid air across the entire eastern half of the country. Temperatures are set to drop as low as 20 degrees below average through Thursday with the highs only reaching the teens and some lows even plunging below zero.

It's been an eventful 14 months for former Washington Commanders defensive coordinator Jack Del Rio. On Friday, the 61-year-old Del Rio found a new job as the head coach of the Paris Musketeers of the European League of Football. Albert Breer of Sports…

Light snow flurries in Indianapolis early Sunday signaled an approaching arctic air mass that could bring dangerous wind chills as low as -20 degrees across Indiana in the coming days. Bitterly cold temperatures are forecast across Indiana from 7 p.

Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists.T​he season's most drastic drop in temperatures is now plowing through the central and eastern states with dangerous wind chills and the arctic air could even topple some record lows.

We'll see the warmest day so far this year before getting back into dangerous cold weather next week, starting with MLK Day.