The next figure depicts the number of strong (EF3 or greater) tornadoes observed in the U.S. each year during the same period from 1954 to 2017. Clearly, the trend is downward instead of upward; the average number of strong tornadoes annually from 1986 to 2017 was 40% less than from 1954 to 1985. Once more, global warming cannot have played a role. The most ferocious tornado outbreak ever recorded, spawning a total of 30 EF4 or EF5 tornadoes, was in 1974.
Patrick Marsh, a Storm Prediction Center meteorologist, reported that outbreaks of 50 or more tornadoes really aren’t uncommon, having happened 63 times in U.S. history. There are even three instances of more than 100 twisters in single years. Roy Spencer reminds us once again not to conflate three decade or- longer climate cycles with seasonal weather which naturally varies from year to year. He writes, "The alarmist claims of AOC, Gore, and Sanders are not just speculative; they are opposed by our observations and by meteorological theory."