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Illinois has had large tornado outbreaks in the past, the most notable being the tornado outbreak sequence of December 18–20, 1957. 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]
Damage. $19 million (2015 USD) $24.4 million (2024 USD)[1] Areas affected. Lee, Ogle, DeKalb, Boone Counties, Illinois. Part of the tornado outbreak of April 8–9, 2015. Throughout the evening hours of April 9, 2015, an extremely violent and long-lived multiple-vortex tornadotore through the communities near Rochelleand in Fairdale, Illinois.
Midwest United States. Power outages. 676,400. Part of the tornado outbreaks of 2013. On November 17, 2013, the deadliest and costliest November tornado outbreak in Illinois history took shape, becoming the fourth-largest for the state overall. [ 2 ] With more than 30 tornadoes in Indiana, it was that state's largest tornado outbreak for the ...
Part of the tornadoes of 2021. In the evening hours of June 20, 2021, an intense tornado affected the Chicago suburbs of Naperville, Woodridge, Darien, Burr Ridge, and Willow Springs in DuPage and Cook Counties in Illinois. It was the strongest tornado spawned by a surface low over Wisconsin, which spawned a total of four tornadoes across ...
The 2013 Washington, Illinois tornado was an unusually powerful and violent tornado that caused catastrophic damage to the city of Washington and several farmsteads in rural central Illinois during the early afternoon of November 17, 2013. The tornado resulted in three fatalities and injured 125 people. This tornado was one of the two violent ...
234 miles (377 km) 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).
The 1967 Oak Lawn tornado outbreak was a destructive tornado outbreak and severe weather event that occurred on April 21, 1967, across the central Midwest, in particular the towns of Belvidere and Oak Lawn, Illinois, United States. Locally known as 'Black Friday,' it was the largest tornado outbreak of 1967 and has been described by NWS Chicago ...
The 1990 Plainfield tornado was a devastating tornado that occurred on the afternoon of Tuesday, August 28, 1990. The violent tornado killed 29 people and injured 353. [1] It is the only F5/EF5 rated tornado ever officially recorded in August in the United States (unofficially the 1883 Rochester, Minnesota cyclone is considered an F5), and the only F5 tornado to strike the Chicago area.