Photo: NOAA, Aug. 28, 1884
This image taken 22 miles southwest of Howard, S.D. is the oldest known photo of a tornado.
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Photo: NOAA, May 27, 1896
The great cyclone of St. Louis results in 255 deaths.
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Photo: AP, June 10, 1953
Sen. John F. Kennedy joins Dick Mayer, 15, and Melissa Tyler, 14, to inspect tornado damage in Shrewsbury, Mass. The June 9 tornado claims 84 lives in the Worcester, Mass. area.
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Photo: AP, April 11, 1965
The view from Elkhart, Ind. is of twin funnels. The Palm Sunday tornado outbreak - lasting until April 12 - is considered the second most damaging of the last century. About 50 tornadoes hit Wisconsin, Illinois, Michigan and Ohio, claiming 256 lives and injuring 3,402.
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Photo: National Severe Storms Laboratory, May 16, 1977
A tornado in Mayfield, Okla. becomes part of one of the most active storm weeks in Oklahoma and the Texas Panhandle, recalled as the "Seven Days of May."
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Photo: AP, July 20, 1999
Space shuttle Columbia sits on the launch pad as a tornado looms near the Kennedy Space Center in Florida. The tornado disapated seconds later.
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