Before the 2011 tornado outbreak, the April 3-4 "Super Outbreak" was the largest tornado event in American history.
SUPER OUTBREAK FAST FACTS
- 148 Tornadoes (95 F2s or stronger | 30 F4s or F5s)
- 48 Killer Storms (335 dead | 6,000 injured)
- At one point, 15 tornadoes on the ground at the same time
- Ten states declared Federal Disaster Areas