Tornado season isn't just a spring phenomenon in the Mid-South. Autumn is often referred to as the "secondary severe weather season."
Most severe weather in the Mid-South occurs in the spring, but meteorologists also consider autumn a time of severe weather due to the transition from summer heat to more temperate conditions.
The majority of storms that produce high wind, hail, or tornadoes in this region occur between March and May, as cool winter air is overtaken by the warmth that leads to summer heat.
Autumn is the region's "secondary severe weather season."
Author's summary: Tornado season affects Mid-South in autumn.