It depends on how you define most severe.
The deadliest tornado on record was the Daulatpur-Saturia tornado of April 26, 1989. It struck portions of Bangladesh, killing over 1,300 people.
The costliest tornado in terms of property damage was the Joplin, Missouri tornado of May 22, 2011 with damage costing $2.8 billion.
The strongest tornado on record is impossible to determine with any certainty, as most F5 and EF5 tornadoes produce similar damage, making it hard to determine if one was stronger than another. Here are to potential candidates: Other tornadoes may also qualify, but in many cases the ncessary information is not available, especially for older tornadoes.
As of June 5 2012 the most recent know tornado was a large damaging tornado in north-central Montana. so far only preliminary reports are available and no details are known of the strength of the tornado or the extent of the damage.
As of the typing of this answer on February 29, 2012 a significant tornado outbreak is in progress with the greatest threat across Kentucky and Tennessee.
So far tornadoes have been reported in Nebraska, Kansas, Missouri, Illinois, Indiana, and Kentucky in this outbreak, which started on the evening of February 28. At least 12 people have been killed. No ratings have been given, but damage from some tornadoes appears to be at least EF2 to EF3.
That is hard to say because tornadoes do not last that long. Try looking in newspapers from Tornado Alley to find out about recent newspapers.
As of January 2, 2013 the most recent tornadoes in the U.S. were the result of an outbreak of at least 28 tornadoes from December 25-26 of 2012.
The correct Answer to the question is Weld County, Colorado with 252 reported tornadoes (1950-2010).
The most tornado prone city in the U.S. is Oklahoma city.
Most of them move SW to NE.
There were 866 recorded tornadoes in the U.S. in 1980. Note however that at this point in history a significant portion of weak tornadoes were missed and most tornadoes are weak. The actual number of tornadoes was probably significantly higher than this figure.
Most tornadoes are of EF0 or EF1 strength.
Tornadoes are most common in Texas
Tornadoes cannot be prevented. Current technology can warn us of an approaching tornado, but can't do anything to stop it.
Most tornadoes in the U.S. happen in spring and early summer.
Tornadoes can occur just about anywhere in the US but are most common on the Great Plains and in the Deep South.
tornado alley is where most tornadoes are located.
So far the year 2004 has had the most confirmed tornadoes in the U.S. at 1,817.
The tornadoes most common in the southeast quadrant of the US are often referred to as "Dixie Alley" tornadoes. These tornadoes typically occur during the late fall through early spring and can be particularly dangerous due to the densely populated areas they affect.
No. Intense tornadoes (those rated EF3 or higher) only account for about 3% of tornadoes in the U.S. Most tornadoes are rated as weak, EF0 or EF1.
tornado ally, texas
Yes, tornadoes can happen all over the world (including India). The most common place to have tornadoes is in the US.
No, tornadoes have been recorded on every continent except Antarctica. But usually, the US is the most common place for tornadoes, especially in Tornado Alley.
Tornadoes are most common in the central U.S. and are rare in New England.