So far we’ve been lucky to not have to deal with storms as serious as the ones that destroyed Tukalooska, AL and Joplin, MO.  Here’s a better idea of how powerful a tornado is as it comes across an 18-wheeler.  The driver survived with only a broken arm.  Lucky.  Watch.

http://abcnews.go.com/WNT/video/oklahoma-tornado-tears-through-truck-13686874