The 2011 Super Outbreak was the largest and costliest tornado outbreak ever recorded, taking place in the Southern, Midwestern, and Northeastern United States from April 25 to 28, 2011, leaving catastrophic destruction in its wake. Over 175 tornadoes struck Alabama, Mississippi, and Tennessee, which were the most severely damaged states. Other destructive tornadoes occurred in Arkansas, Georgia, Kentucky, Louisiana, New York, and Virginia, with storms also affecting other states in the Southern and Eastern United States. In total, 368 tornadoes were confirmed by NOAA's National Weather Service (NWS) and Government of Canada's Environment Canada in 21 states from Texas to New York to southern Canada. Widespread and destructive tornadoes occurred on each day of the outbreak. April 27 was the most active day, with a record 224 tornadoes touching down that day from midnight to midnight CDT. Four of the tornadoes were rated EF5, which is the highest ranking on the Enhanced Fujita scale; typically these tornadoes are recorded no more than once a year.
During the most active day of the 2011 Super Outbreak 218 tornadoes killed 317 people across 16 U.S. states.
On April 27, in the year 2011, During the most active day of the 2011 Super Outbreak 218 tornadoes killed 317 people across 16 U.S. states. This event is recorded as a Selected Events event in the history of April 27, one of 360 recorded events on this date across all of history.
Key Facts
- This event took place on April 27, 2011 (AD era).
- It is categorised as a Selected Events event in recorded history.
- Referenced in 2 Wikipedia articles.
- Wikipedia source last updated on 25 April 2026.
On This Date in History 360
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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