What was the single deadliest U.S. tornado outbreak?

The worst single tornado tragedy in the United States was the Tri-State tornado outbreak (Missouri, Illinois and Indiana) of 18 March 1925. Several tornadoes claimed a total of 747 lives with an additional 2027 persons being injured. The largest of these twisters killed 695 persons, the worst single tornado casualty toll ever. GO TO TOP What were the deadliest years for tornadoes in the U.S.? The deadliest year for tornado deaths in the U.S. was 1925, when 794 died, many in the infamous Tri-State tornado in Missouri, Illinois and Indiana. In more recent years, 1953 was grim, with 519 fatalities. Tornadoes in May and June, 1953 were especially deadly. On 11 May, 114 died in Waco, TX. On June 8, 116 perished in Flint, MI. The next day the weather system spawned a tornado in Worcester, MA, resulting in the loss of 90 more lives. The year with the fewest reported U.S. tornado deaths is 1986, when only 16 citizens perished. What are the longest and shortest tornado paths on record? A ...  more