Several counties are experiencing flash flood warnings, and a tornado reportedly caused damage to several homes near Plainfield.
The severe weather threat will be highest from Interstate 70 southward.
Severe thunderstorms are expected to develop along a cold front today and through this evening.
A freeze watch is in effect for southern Indiana for Tuesday night and Wednesday morning as temperatures fall to 25 degrees.
The study looked at years of tornado climatology data to determine where tornadoes in Indiana touched down most frequently.
The ups and downs felt throughout the Midwest recently will continue as a new cold front threatens to bring back colder temperatures, sleet and snow.
Kokomo officials are monitoring the city's water levels and preparing for floods to prevent damage.
A winter weather advisory remains in effect until 7 p.m.
The Department of Education announced this week school districts can either add days to the end of the year or hours onto days to make up for canceled days.
Bitterly cold temperatures and wind chills are expected tonight.