That is difficult to determine. In the past 50 years there have been a few dozen tornadoes that have achieved a rating of F5 or EF5, the highest possible, and it is difficult to determine whether one was stronger than another.
The highest measured wind occurred in the F5 tornado that hit the Oklahoma City area on May 3, 1999. But wind measurements from tornadoes are rare, and so many tornadoes have gone without wind measurements that may have been stronger.
Other candidates include the Xenia, Ohio tornado of April 4, 1974; the Andover, Kansas tornado of April 26, 1991; and the Jarrell, Texas tornado of May 27, 1997.
It varies, but most of the time a violent, (EF4 or EF5) tornado will last about 30 to 60 minutes. The longest lived tornado on record, a violent F5, lasted 209 minutes, or 3 hours and 29 minutes. The are some cases ov violent tornadoes that have apparently lasted less than 5 minutes, but this is highly unsusual.
an f5
The most violent tornado and only F5 tornado recorded in the month of August struck Plainfield, Illinois, southwest of Chicago, on August 28, 1990.
A tornado anywhere is a violent event. If you mean by the technical definition of a violent tornado, one rated EF4 or EF5, such tornadoes do occur fairly regularly in Tornado Alley, but make up a very small minority of the tornadoes that occur there. As with most places, most of the tornadoes in Tornado Alley are rated EF0 or EF1.
No. Cyclones and tornadoes are completely different phenomena.
It depends. A tornado is defined as a "violently rotating column of air" and most people would consider any tornado a violent event. However, in discussing tornado strength, a violent tornado is one of EF4 or EF5 intensity. Less than 1% of tornadoes recieve such ratings.
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.
This most closely describes a tornado, though a tornado technically is not a cyclone.
The Plainfield Tornado didn't live for long, but it was violent enough that it killed 29 people and injured 353, and caused over $140 million dollars worth of damage. Its rating of F5 means that it was in the most violent category of tornado. Tornadoes rated F4 and F5 are classified as violent. A weak tornado has a rating of F0 or F1.
No, but it is given a rating based on the EF scale which ranges from EF0-EF5. EF0- Weakest tornado. EF5- Most violent tornado.
A funnel volcano is the most common tornado and is what most people think of when you mention a tornado. They are very violent and destroy almost everything in their path.
In a violent tornado the worst features are flying debris and suction vortices, small whirlwinds that have stronger winds than the rest of the tornado.