Tornado outbreak sequence of April 1996
The tornado outbreak sequence of April 1996 was a series of tornado outbreaks that occurred across a large area of eastern North America over a three-day period between April 19 and April 21, 1996. A total of 118 tornadoes touched down in the Great Lakes, Midwest and Southeast region over the three-day period, killing six people and becoming the most notable outbreaks of the year.
Source: Wikipedia — Tornado outbreak sequence of April 1996 (CC BY-SA 4.0)