The stage is set for a tornado outbreak this Sunday with Chicago and Indianapolis in the danger zone.
A front sweeping through the area will bring strong-to-severe thunderstorms throughout the day. These storms will be capable of producing torrential downpours, damaging wind gusts and tornadoes.
The setup will be particularly high for the formation of tornadoes as a line of strong storms develops in the later part of Sunday morning.
The front will continue moving westward early this week, bringing thunderstorms into the Northeast for Monday. Although the destructive winds will continue with the front, the threat for severe weather and tornadoes will end with the weekend.
Cold air will fill the Great Lakes and Northeast, dropping high temperatures as much as 20 degrees in two days.