By Paul Homewood

1) https://www.spc.noaa.gov/wcm/#data

2) https://www.ncdc.noaa.gov/stormevents/listevents.jsp?tornfilter=3&sort=DT&statefips=-999%2CALL&eventType=%28C%29+Tornado&beginDate_yyyy=2019&beginDate_mm=01&beginDate_dd=01&endDate_yyyy=2019&endDate_mm=12&endDate_dd=31

The US Storm Prediction Center has not fully finalised its tornado data for last year yet, but we do have confirmation of the stronger tornado categories, EF-3 to EF-5.

There were 28 strong tornadoes in 2019, in line with most recent years but slightly up on the extremely low figures for the previous two years.

This continues the markedly declining trend since the reliable data became available in the 1970s.

But most remarkable is the absence of any EF-5 tornadoes last year. The last one was the Moore tornado in May 2013. So far this season there has been no EF-5.

The only longer period without an EF-5 was between 3rd May 1999 and 4th May 2007. By contrast there were 14 in the 1970s, including 7 in 1974.

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April 21, 2020 at 11:27AM