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So #ICYMI #OnThisDay in 1974, and into the following day, was the #Tornado #SuperOutbreak This montage of images is on the @NWS pages at: weather.gov/iln/19740403 
I have the following image as a poster in my office for several reasons, which I will expound upon in subsequent tweets. Firstly it was produced by hand by Theodore ‘Ted’ Fujita, who developed the F-scale (later the EF-Scale based in wind intensity and damage.
What I really noticed in the key/legend on the map was how he was also looking at the type of structure where fatalities occurred, something that other scientists (@StephenMStrader) were looking at before I came along, but once you start, you can’t stop. I’m pretty much obsessed.
