Friday, April 20, 2018

Inconvenient weather fact for Earth Day: the frequency of violent tornadoes fell to a record low in 2017-Carpe Diem - AEI

Carpe Diem - AEI:
 Carpe Diem
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"...For now, in preparation for Earth Day, let me present an “inconvenient weather fact” displayed graphically above of the annual US tornado count from 1954 to 2017 based on data from the National Oceanic and Atmospheric Administration’s (NOAA) National Centers for Environmental Information.

In 2017, there were only 15 tornadoes in the US that registered in the strong to violent categories of F3, F4 or F5 (there were 13 F3 tornadoes, 2 F4s, and no F5s), which was the fewest annual number of F3+ tornadoes in more than 60 years going back to 1954 when NOAA started collecting annual US tornado data, and below the previous record low count of 17 F3+ tornadoes in 1987...
As James Taylor wrote in Forbes in 2012 (five years before the record-setting low last year):
Tornadoes are becoming less frequent and less severe as our planet modestly warms. Yet global warming alarmists focus attention on the few tornadoes that still do occur and say that global warming is causing these increasingly rare tornadoes.

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