That is not exactly known as once you start dealing with F5/EF5 tornadoes it is hard to tell whether one was stronger than another as buildings are completely obliterated. Additionally, many tornadoes tear across open countryside where there are few or no damage indicators.
Here are three possible Candidates for the most violent tornado on record:
The Xenia, Ohio tornado of April 3, 1974.
The Jarrell, Texas tornado of May 27, 1997.
The Moore, Oklahoma tornado of May 3, 1999.
Doppler radar measure winds of 302 mph +/- 20 in the Moore tornado, the fastest ever recorded. However, actual measurements are rare in tornadoes, so other tornadoes, such as those that hit Jarrell and Xenia, which had no such Dopplers present, may have been stronger.
The most violent tornado and only F5 tornado recorded in the month of August struck Plainfield, Illinois, southwest of Chicago, on August 28, 1990.
an f5
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.
Both. Tornado Alley is a region in the central United States where there is a higher incidicence of strong tornadoes than anywhere else. However, strong tornadoes have been recorded in most U.S. states and most states east of the Rockies have recorded at least one violent (F4 or F5) tornado.
There has never been a violent (F4 or F5) tornado recorded in California.
Most tornadoes are considered weak, with wind speeds less than 110 mph. Strong tornadoes, with wind speeds between 111-135 mph, are less common, while violent tornadoes, with wind speeds over 136 mph, are the rarest and most destructive.
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.
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.
A strong tornado is one that is EF2 or stronger. A violent tornado is one that is EF4 or EF5.
Tornado.