The spring of 2011 will likely be remembered as one of the most extreme tornado seasons ever to occur in the United States. As of June 16th there had been a total of 1482 tornado reports since the start of the year, with 537 deaths from 56 killer tornadoes, and an estimated $20 billion worth [...]

Last Saturday saw a large outbreak of severe thunderstorms and tornadoes in the south-eastern USA with a particularly large and long-lived EF4 tornado which killed 10 people in Mississipi. There is a lot of material on the web discussing the background to the storms, but the accuweather blog showing radar images of the tornado was [...]