3.5 hours
As of May 16, 2012 the last tornado was two days ago.
It varies. A tornado warning may last for just a few minutes or over an hour.
4 mins
3.5 hours
The duration of a tornado can vary greatly, from a few seconds to several hours. On average, a tornado lasts for about 10 minutes. Tornado strength, size, and environmental conditions all play a role in determining how long a tornado will last.
The Tri-State tornado lasted for 3 hours and 29 minutes.
It was on the ground for about 30 minutes.
A typical tornado lasts one to five minutes. The longest-lived tornado on record lasted for three and a half hours.
The Moore, Oklahoma tornado of 2013 lasted approximately 40 minutes.
A typical tornado lasts several hours, often more than 5 hours.
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.
As of June 14, 2012, the last cofnriemd tornado in the United States was three days ago on June 11.