Presumably you mean to ask how long a tornado lasts. The average duration for a tornado is about 10 minutes. However, tornadoes can last anywhere from just a few seconds to over an hour. The longest lived one on record lasted 3 hours and 29 minutes.
The time it takes for a tornado to destroy something can vary depending on the tornado's intensity, size, and the durability of the object. In many cases, a tornado can cause significant damage within seconds to minutes as it passes through an area.
It varies depending on the structure and the intensity of a tornado. In most cases, though, it takes a matter of seconds, which is usually how long a structure is exposed to the strongest winds. One analysis of the fast-moving EF5 tornado that hit Smithville, Mississippi tornado of 2011 found that houses wiped clean off their foundations were exposed to the strongest winds of the tornado for less than 3 seconds.
A tornado is called a rope when it starts to thin out and weaken because its appearance resembles that of a long rope hanging from the clouds. This stage typically signals that the tornado is losing strength and will soon dissipate.
Scientists typically issue tornado warnings when they detect conditions that are likely to produce a tornado, such as a tornado forming or imminent tornado development. The lead time for a tornado warning can vary, but it is aimed to give people enough time to seek shelter and stay safe, usually ranging from a few minutes to up to an hour in advance of the tornado's arrival. It is crucial for individuals to have a reliable way to receive these warnings quickly, such as through weather radio or smartphone alerts.
The average time for a tornado to stay on the ground is around 10-15 minutes, but they can last anywhere from a few seconds to over an hour, with some particularly long-lasting tornadoes staying on the ground for hours.
The longest tornado damage path on record is 219 miles.
until the tornado ends and then the people fall and die or get injured
The Tuscaloosa-Birmingham tornado of 2011 was on the ground for about 90 minutes.
The Joplin, Missouri tornado of 2011 had a damage path of 22 miles.
It can't. :)
Yes, there have been tornadoes in Long Island.
It is impossible to make such long-term tornado predictions for a specific locations.
As of May 16, 2012 the last tornado was two days ago.
A typical tornado lasts one to five minutes. The longest-lived tornado on record lasted for three and a half hours.
The average tornado path is about 5 miles long, but it can range from as little as a few hundred feet to over 200 miles.
The Waco tornado of 1953 was a third of a mile wide had a path length of 23 miles. Data does not appear to be available on how long it lasted.
The Tri-State tornado lasted for 3 hours and 29 minutes.