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This version was based on a 12-step rating scale. Over the next few years, dozens of tornadoes would be rated on this version of the scale. Most notably, the 2021 South Moravia tornado received a rating (IF4) and full damage survey on the IF-scale conducted by ESSL, the Czech Hydrometeorological Institute and four other organizations. [2]
Intensity cannot be determined due to a lack of information. This rating applies to tornadoes that traverse areas with no damage indicators, cause damage in an area that cannot be accessed by a survey, or cause damage that cannot be differentiated from that of another tornado. [4] N/A EF0: 65–85: 105–137 52.82% Minor damage.
The 2020 Monroe tornado was a damaging tornado which spawned over Louisiana. Formed from the 2020 Easter tornado outbreak , it spawned on On April 12, 2020, on 10:36 a.m., CST , dissipating nine minutes later on 10:45 a.m., CST.
The 1977 Birmingham–Smithfield F5 tornado's damage was surveyed by Ted Fujita and he "toyed with the idea of rating the Smithfield tornado an F6". [13] In 2001, tornado expert Thomas P. Grazulis stated in his book F5–F6 Tornadoes; "In my opinion, if there ever was an F6 tornado caught on video, it was the Pampa, Texas tornado of 1995". [14]
An EF4 tornado with wind speeds ranging from 166 to 200 mph can cause devastating damage. Most to all walls on a well-built house will likely collapse, and high-rise buildings can sustain ...
With tornado season—March to June—upon us, Roof Gnome ranked 2024's most vulnerable counties for tornado damage. We compared nearly 950 U.S. counties with a relatively moderate to very high ...
A Waffle House location may close in preparation for an incoming storm for the safety of its customers and employees, which is unrelated to actual storm damage. The intent of the Waffle House Index is to measure how quickly a location reopens after the storm passes. The quicker the reopening, the less overall damage the area sustained in the storm.
Tornado damage to a house in Oklahoma County, Oklahoma, hit during the Tornado outbreak of May 10–13, 2010. Tornado intensity is the measure of wind speeds and potential risk produced by a tornado.