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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]
List of tornadoes in the 1974 Super Outbreak; 1974 Super Outbreak; Tornado outbreak of April 1–2, 1974; 1975 Canton, Illinois, tornado; Marion, Illinois, tornado outbreak; 1990 Plainfield tornado; June 1990 Lower Ohio Valley tornado outbreak; Tornado outbreak sequence of May 6–27, 1995; List of tornadoes in the May 1995 tornado outbreak ...
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).
This was one of the most intense December outbreaks in the Contiguous United States and the most intense Illinois tornado outbreak in any month. An F4 tornado struck Mt. Vernon, Illinois, an F5 tornado obliterated Sunfield, Illinois, and a long-tracked F4 struck several towns hit by the 1925 Tri-State tornado. An additional F4 tornado hit ...
List of confirmed tornadoes in Illinois – Friday, March 31, 2023 [note 1] EF# Location County / parishes State Start coord. Time Path length Max. width
This page documents all tornadoes confirmed by various weather forecast offices of the National Weather Service in the United States from January to March 2024. Tornado counts are considered preliminary until final publication in the database of the National Centers for Environmental Information. [1]
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 ...
A map of the tornado paths in the 1974 Super Outbreak. This article lists various tornado records.The most "extreme" tornado in recorded history was the Tri-State tornado, which spread through parts of Missouri, Illinois, and Indiana on March 18, 1925.