Tuesday, there will be a statewide drill at 10 a.m.
This annual exercise is conducted by schools, businesses, law enforcement agencies, emergency managers and the public to prepare for the severe thunderstorm and tornado season in Illinois.
A main component of this exercise is the ability to test weather alert radios, law enforcement communications networks and the emergency alert system equipment.
Several communities will also test their tornado sirens.
ABC 7 will also run a test of the emergency alert system at that time.