In the spring of 2011, the worst tornado outbreak in decades left a trail of destruction across the US, killing hundreds. Why has there been such an extreme outbreak?
In the spring of 2011, the worst tornado outbreak in decades left a trail of destruction across the US, killing hundreds. Why has there been such an extreme outbreak?
In the spring of 2011, the worst tornado outbreak in decades left a trail of destruction across the US, killing hundreds. Why has there been such an extreme outbreak?