A cold plunge is set to bring a blast of record-breaking temperatures to the Southeast early this week as the jet stream dips as low as the Gulf coast. Freeze watches and warnings are in effect across the South, spanning from Richmond to Oklahoma City. High temperatures will span the high 30s for places like Nashville and low 40s for places like Atlanta, with the cold even reaching Tallahassee with highs in the low 50s. Low temperatures across the South will be subfreezing, with many places seeing lows in the mid to upper 20s. The Wind chill will make the temperatures feel even colder. Watch for the latest.