I found an interesting heat-map of the United States of America, showing 56 years of tornado tracks by fujita scale. After being on the front-end of one of the tornadoes going through Dexter, MI, I found it particularly interesting that injury-to-death-toll numbers have dropped off significantly and made me think about some of the early warning signals we get now. For instance the Dexter tornado had warnings coming at least 1 hour before the storm hit the area. It was a general warning, but we had tornado sirens screaming at least two different intervals during the period. Some interesting infographics can be found at http://uxblog.idvsolutions.com/. The data comes from NOAA, but you can never tell if the infographic is correct even though the source is correct, but the graphic is interesting.