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The 2011 Super Outbreak was the largest tornado outbreak spawned by a single weather system in recorded history; it produced 367 tornadoes from April 25–28, with 223 of those in a single 24-hour period on April 27 from midnight to midnight CDT, [4] [11] fifteen of which were violent EF4–EF5 tornadoes. 348 deaths occurred in that outbreak, of which 324 were tornado related.
Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin — a high-end classification of tornado warning — sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ground ...
This outbreak sequence produced what may have been one of the most intense F5 tornadoes in US history that killed 10 people in Fargo, North Dakota. An additional fatality occurred in South Dakota from an F2 tornado. (7 significant, 1 violent, 2 killer) Tornado outbreak of November 7–8, 1957: November 7–8, 1957: Southeastern United States: 20
The deadliest tornado in modern U.S. history struck Joplin, Missouri, on May 22, 2011. It was the deadliest tornado since SPC records began in 1950. Nearly 1,000 were injured. The EF5 tornado had ...
April has historically witnessed some of the most severe tornado patterns on record, including the largest and second-largest outbreaks in recorded history. ... with the most tornadoes per year ...
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With 55 tornadoes in 2024 as of Thursday, Iowa has seen the most tornadoes this year. A graphic from AccuWeather depicting the number of tornadoes each state has seen so far in 2024.
Tornado History Project Searchable US tornado database overlaid on a Google Map; Weather data archives. Severe Thunderstorm Events (SPC) Various (NCDC) Various Archived 2012-12-11 at archive.today (Plymouth State University) Various (Iowa State University) Radar and weather data Archived 2011-07-06 at the Wayback Machine (McGill University)