What is an EF6 tornado?
The Enhanced Fujita scale rates tornado from EF0 to EF5.
There is no such thing as an EF6 tornado. EF5 is as high as it goes.
There is no such thing as an EF6 tornado. The scale only goes as high as EF5, which is open ended with no upper bound. Most buildings struck by the full force of an EF5 tornado will be completely destroyed. Smaller buildings such as houses and restaurants will be completely swept away. High rise and mid rise buildings will be structurally deformed and may collapse.
Theoretical winds for an F6 tornado are 319-379 mph. However, because tornado ratings are based on damage, the highest a tornado could ever be rated is F5. So the F6 rating is purely theoretical with no applications in the real world. On the enhanced scale there is no EF6 level theoretical or otherwise.
Sort of. On the original Fujita scale theoretical categories F6 to F12 were plotted, but they are never used, as ratings are based on damaged, and an F5 tornado leaves nothing left to destroy. Since it was never used, the Enhanced Fujita (EF) scale did away with it completely, giving any tornado with estimated winds over 200 mph a rating of EF5.
No. There has been a tornado with wind speeds of 302 mph +/20 mph. That was recorded by Doppler on wheels. So winds may have been over 318 mph which was the upper limit of F5 winds on the original Fujita scale. However the Fujita Scale scale is based on damage, not wind speed (the wind speeds for each category are only estimates) and F5 damage is complete destruction, that tornado was rate F5. On…
The Natchez, MS tornado of 1840 The St. Louis, MO tornado of 1896 The Tri-State Tornado of 1925 The Tupelo, MS tornado of 1936 The Worcester, MA tornado of 1953 The Xenia, OH tornado of 1974 The Wichita Falls, TX tornado of 1979 The Oklahoma City tornado of 1999 The Joplin, MO tornado of 2011 The Moore, Oklahoma tornado of 2013
Yes and no. While it might be possible for winds in excess of 318 mph to occur, Fujita scale ratings are based on damage rather than winds speeds. So even if winds in the theoretical F6 range were to occur the tornado would still be rated F5 as F5 winds will obliterate all man-made structures leaving no room or purpose for a higher category to be used. So the F6 rating is purely theoretical. On…
Officially, it is a tornado warning, which means that a tornado has been detected or that the formation of a tornado may be imminent. Unofficially, it is a subcategory of tornado warning called a tornado emergency. A tornado emergency is issued when a large and intense tornado is threatening a populated area.