There is no given duration for a tornado of any intensity, but a tornado as violent as an EF5 will generally last fairly long. Most will likely last for at least 20 minutes. Some may last for well over an hour.
3.5 hours
The average tornado lasts about 15 minutes, but they can last anywhere from just a few seconds to several hours.
The Joplin, Missouri tornado of May 22, 2011 lasted 38 minutes.
This is no given duration for an F3 tornado. However, generally they are fairly long-lived, typically lasting 20 minutes or so.
The deadliest tornado outbreak in U.S. history was the one which produced the Tri-State tornado on March 18, 1925. As a whole the outbreak killed 747 people, 695 in the devastating Tri-State tornado, the deadliest single tornado in U.S. history. The F5 tornado cut a 219 mile long damage path through 13 counties in Missouri, Illinois, and Indiana.
The Tri-State tornado had a path of 219 miles long and 3/4 mile to 1 mile wide across 3 states and numerous mining towns.
As of May 16, 2012 the last tornado was two days ago.
There is no given duration for a tornado of any intensity, but a tornado as violent as an EF5 will generally last fairly long. Most will likely last for at least 20 minutes. Some may last for well over an hour.
It varies. A tornado warning may last for just a few minutes or over an hour.
3.5 hours
The worst tornado outbreak ocurred across portions of Kansas, Missouri, Illinois, Indiana, Kentucky, Tennessee, and Alabama on March 18, 1925. At least nine tornadoes are known to have happened, with more that probably went undocumented. In total, the outbreak killed at least 747 people. Of those deaths, at least 695 were from a single F5 tornado that tore a 219 mile long damage path across parts of Missouri, Illinois, and Indiana. This storm, the deadliest tornado in US history, is known as the Tri-State tornado.
The average tornado lasts about 15 minutes, but they can last anywhere from just a few seconds to several hours.
3.5 hours
3.5 hours
4 mins
The Joplin, Missouri tornado of May 22, 2011 lasted 38 minutes.