Greensburg Tornado and the new EF-5 Rating

First of all, my heart goes out to those affected by the Greensburg, KS tornado. That town was completely obliterated. It was a horrible thing. This tornado was HUGE, 1.7 miles wide at one point. Visit http://tornadolive.com/ to see a few videos and stills of this monster.



The new Enhanced Fujita rating scale for tornadoes is a bit confusing, but this article from WDEF News has a great description of how this new rating system works, and why you can't compare an EF5 to an F5 from the past.