40th anniversary of super tornado outbreak in 1974
Weather History: The 1974 Super Outbreak
Great Bend, Kansas Tornado Footage 1974
April 3, 1974 -- "Day of the Killer Tornadoes"
April 3-4, 1974 Superoutbreak of Tornadoes
The 1974 Super Outbreak was the second-largest tornado outbreak on record for a single 24-hour period, just behind the 2011 Super Outbreak. It was also the most violent tornado outbreak ever recorded, with 30 F4/F5 tornadoes confirmed. From April 3 to 4, 1974, there were 148 tornadoes confirmed in 13 U.S. states and the Canadian province of Ontario. In the United States, tornadoes struck Illinois, Indiana, Michigan, Ohio, Kentucky, Tennessee, Alabama, Mississippi, Georgia, North Carolina, Virginia, West Virginia, and New York. The entire outbreak caused more than $600 million in damage in the United States with alone, and extensively damaged approximately 900 sq mi (2,331 km2) along with a total combined path length of 2,600 mi (4,184 km). At one point, as many as 15 separate tornadoes were ongoing at the same time.
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