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Adjusted annual tornado report count in the United States compared to minimum, maximum, and climatological percentiles. In contrast to the first nine months of 2008, the final quarter was fairly inactive overall, and the inactivity continued into January 2009 with only a few tornadoes in the US the entire month as generally stable air dominated.
The 2009 Super Derecho was an extreme progressive derecho and mesoscale convective vortex (MCV) event that struck southeastern Kansas, southern Missouri, and southwestern Illinois on May 8, 2009. [ 9 ] [ 10 ] Thirty-nine tornadoes, including two of EF3 strength on the Enhanced Fujita Scale , were reported in addition to high non-tornadic winds ...
A small tornado outbreak accompanied the storm, with 14 confirmed across 7 states. The most significant damage occurred in Oklahoma from two tornadoes in the Oklahoma City metropolitan area and a deadly EF4 tornado that destroyed large parts of Lone Grove. The EF4 tornado killed eight people and injured 46 others.
May 1873 Midwest tornado outbreak: May 22, 1873: Midwestern United States: ... List of United States tornado outbreaks – 2000–2009 Outbreak Dates Region Tornadoes ...
2009: 1,147 0 695 348 82 20 2 0 2010: 1,282 0 768 342 127 32 13 0 2011: 1,713 0 802 629 198 61 17 6 2012: 948 0 583 241 94 26 4 0 2013: 916 0 499 309 80 19 8 1 2014: 929 0 510 321 71 20 7 0 2015: 1,178 0 691 401 65 18 3 0 2016: 974 30 530 311 75 26 2 0 2017: 1,418 67 615 594 127 13 2 0 2018: 1,121 15 619 400 75 12 0 0 2019: 1,529 179 655 540 ...
Part of the Tornadoes of 2009 and 2009–10 North American winter 1 Most severe tornado damage; see Fujita scale The 2009 North American Christmas blizzard was a powerful winter storm and severe weather event that affected the Midwestern United States , Great Plains , Southeastern United States, the Eastern Seaboard , and parts of Ontario .
These are lists of all tornadoes that have been confirmed by local offices of the National Weather Service in the United States in 2009. List of United States tornadoes from January to March 2009; List of United States tornadoes in April 2009; List of United States tornadoes in May 2009; List of United States tornadoes in June 2009
The May 2009 derecho series was an unusually strong sequence of derecho events and tornadoes beginning on May 2, 2009, and continuing through May 8, which primarily affected the Southern United States. At least seven people were killed by the storms.