4 mins
The Tuscaloosa-Birmingham tornado of 2011 was on the ground for about 90 minutes.
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.
3.5 hours
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 several hours, often more than 5 hours.
The Moore, Oklahoma tornado of 2013 lasted approximately 40 minutes.
A typical tornado lasts one to five minutes. The longest-lived tornado on record lasted for three and a half 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.