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Illinois has had large tornado outbreaks in the past, including the tornado outbreak sequence of December 18–20, 1957 and the 1967 Oak Lawn tornado outbreak. Illinois is vulnerable to tornadoes with an average of 35 occurring annually, which puts much of the state at around 5 tornadoes per 10,000 square miles (30,000 km 2) annually. [1]
Tornado outbreak of May 2, 1942; Tornado outbreak of May 6–10, 2024; Tornado outbreak of May 20–22, 1949; Tornado outbreak of November 11, 1911; Tornado outbreak sequence of April 5–8, 1954; Tornado outbreak sequence of August 4–8, 2023; Tornado outbreak sequence of May 19–27, 2024
The 19th was the most prolific tornado outbreak in Illinois history with 33 tornadoes touching down across the state, breaking the old record of 25 set on August 10, 1974. [1] This outbreak can also be compared to the May 2004 tornado outbreak sequence as it was a very large, deep, and vigorous system.
By far the most destructive and significant tornado of the outbreak was a violent, very high-end EF4 wedge tornado that tore through parts of Rochelle, Illinois and the adjacent town, Fairdale, Illinois. The tornado began as a small cone-shaped tornado, causing mostly minor damage near Franklin Grove and Ashton, though a Crest Foods plant ...
SPC storm reports for November 17, showing the extent of the tornado outbreak and subsequent wind event. With the overall upper-level system expected to track eastward across the United States High Plains on November 17, the SPC issued a slight risk for severe thunderstorm activity for an area surrounding the confluence of the Mississippi and Missouri rivers, valid for the early morning hours ...
The most memorable tornado of Timmer's career came a couple of days before the historic El Reno, Oklahoma, tornado in 2013. On May 28, 2013, an intense tornado formed near Bennington, Kansas.
613 deaths in Southern Illinois. 695 deaths overall Deadliest single tornado in US history. Most extreme tornado in recorded history. Holds the record longest path length (219 miles, 352 km), longest duration (about 3.5 hours), and fastest forward speed for a significant tornado (73 mph, 117 km/h).
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 ...