Starting this year, the NOAA National Weather Service is upgrading the old Fujita (F) tornado rating system to Enhanced Fujita (EF).
What’s this mean? I just means that they are taking more factors into how they rate a tornado.
There will still be the 1-5 ratings, but tornadoes may be rated higher or lower than in previous years due to the amount damage they produce.
It’s unclear if they’ll call tornadoes EF4’s or if they’ll stick the the common F4 saying. I’m hoping for the good old F4 as that’s easier for most to comprehend. And, when seconds count, you don’t want people wondering what a EF4 tornado is.
The upgraded Fujita rating system is much like the upgraded wind chill factor put in place a few years back. As we continue to evolve and learn more about the weather, we’ll continue to evolve the methods that we use rate the weather too.