Tornado outbreak

If tornado activity indeed resumes after such a lull, many definitions consider the event to be a new outbreak.

Tornado outbreaks can also occur during other times of the year and in other parts of the world.

A secondary less active and annually inconsistent tornado "season" in the U.S. occurs in late autumn.

[4] Major tornado outbreak sequences occurred in the United States in May 1917, 1930, 1949, 1965, 1974, 2003, 2011, and 2024.

[8][9] Another exceptional outbreak sequence apparently occurred during mid to late May 1896.

Dozens of supercells over Northern Arizona that caused a tornado outbreak on October 6, 2010
A timeline showing three day sequences with at least four violent tornadoes and the number of deaths associated with each. (1875–2014)