Where the EF scale differs, however, is in the number of criteria used to assess a tornado's level of damage. First, there are damage indicators — objects that a tornado can damage. These range from 1 (small barns) to 28 (softwood trees). Each damage indicator can also experience ...
It classifies tornadoes into six different categories (EF0 through EF5 instead of F0 through F5). Where the EF scale differs, however, is in the number of criteria used to assess a tornado's level of damage. First, there are damage indicators — objects that a tornado can damage. ...
EF5, or an equivalent rating,the highest possible ratings on the various tornado intensity scales. ... F5 tornadoes were estimated to have had maximum winds between 261 mph (420 km/h) and 318 mph (512 km/h).