Whilst this visualization was produced in 2012, it’s one that needs to be seen over and over.

Using six decades worth of data from National Oceanic and Atmospheric Administration (NOAA – Storm prediction Center – SPC), designer John Nelson has produced a quite remarkable visualisation of Tornado tracks in the United States – see below.

Photo credit: John Nelson

The visualisation above illustrates sixty one years of Tornado tracks along with a host of attributed information – injury, death etc.

Included is the horrendous Tornado season of 2011.

The tracks in the above visualization – illustrated as lines – are categorised by the Fujita-scale (F-scale)1.  

1: When this visualization was produced, the F-scale rating was being used. However, that rating scale is now outdated.

The Enhanced Fujita Scale aka EF-Scale is now being used to rate the power of a Tornado. You can find out more about the EF-scale here.

It’s safe to suggest where the brighter lines are in the map represent the more violent storms. 

We could look at this for hours! Poor Oklahoma. You can find more of Nelson’s incredible work here.

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