Spring weather in the midwest can mean tornadoes. Indiana did a statewide test of its sirens last month. Michigan is doing one Wednesday.
Tornado season typically runs from April to June in this area. On average since 2004, Michiana has gotten 11 tornadoes a year. Most of those are below an EF-3. That means the winds are less than 136 miles per hour.
National Weather Service Meteorologist Kyle Brown said that can make it more difficult for predictions.