Why is the NWS implementing an Enhanced Fujita (EF) Scale?
The NWS is implementing an Enhanced Fujita (EF) scale to rate tornadoes in a more consistent and accurate manner. The original F scale has limitations, such as a lack of damage indicators, no account for construction quality and variability, and no definitive correlation between damage and wind speed. These limitations may have led to some tornadoes being rated in an inconsistent manner and, in some cases, an overestimate of tornado wind speeds. When will the EF Scale be implemented? The NWS expects the EF scale to be fully implemented by February 2007. Who developed the EF Scale?
