page_title: May–June 1917 tornado outbreak sequence
hierarchical_section_title: May–June 1917 tornado outbreak sequence
caption_attribution_description: English: Tornado damage in the town of Mattoon, part of a severe outbreak of tornadoes that killed more than 100 people.
context_page_description: The tornado outbreak sequence of May–June 1917 was an eight-day tornado event, known as a tornado outbreak sequence, that killed at least 383 people, mostly in the Midwestern and parts of the Southeastern United States. It was the most intense and the longest continuous tornado outbreak sequence on record, with at least 66 tornadoes including 15 that were analyzed to have been violent based upon reported damage. The deadliest tornado of the entire sequence produced a 155-mile track across Illinois, killing 101 people and devastating the towns of Charleston and Mattoon along with small farming communities. Once believed to have traveled 290-mile cross Illinois and into Indiana, it is now assessed to have been a tornado family of four to eight separate tornadoes.
context_section_description: The tornado outbreak sequence of May–June 1917 was an eight-day tornado event, known as a tornado outbreak sequence, that killed at least 383 people, mostly in the Midwestern and parts of the Southeastern United States. It was the most intense and the longest continuous tornado outbreak sequence on record, with at least 66 tornadoes including 15 that were analyzed to have been violent (F4–F5) based upon reported damage.  The deadliest tornado of the entire sequence produced a 155-mile (249 km) track across Illinois, killing 101 people and devastating the towns of Charleston and Mattoon along with small farming communities. Once believed to have traveled 290-mile (470 km) cross Illinois and into Indiana, it is now assessed to have been a tornado family of four to eight separate tornadoes.
caption: Tornado damage in Mattoon, Illinois, on May 26
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