There are two reasons. First is that the United States has an ideal climate setup in the middle part of the country. In the spring storm systems cause warm, moist air from the Gulf of Mexico to collide with cool air from Canada and dry air from the Rockies, resulting in the formation of strong thunderstorms. About a mile off the ground a layer of stable air holds thunderstorm activity back, allowing instability to build underneath it. As a result when the storm break through the cap the instability will be enormous, leading to explosively powerful thunderstorms. At the same time wind speed and direction varies with altitude, which sets these storms rotating and also strengthens the updraft. This rotation combined with strong thunderstorm updrafts can then produce tornadoes.
The second reason is that the United States is very good at keeping record of the tornadoes it gets. Many other countries that have a high incidence of tornadoes do not keep detailed records, and many tornadoes are never recorded at all.
The U.S. averages between 1,200 and 1,300 tornadoes per year.
Kansas gets the highest number of tornadoes per area unit, with about 12 tornadoes per 10,000 square miles per year.
The United States averages about 1200 tornadoes per year, which would work out to about 3600 tornadoes in an average 3-year period.
The most common tornadoes are in the USAThe area of the US called "tornado alley" seems to get the most tornadoes. This area includes parts of Texas, Oklahoma and Kansas.Texas, Oklahoma, Kansas, Nebraska, South Dakota, Iowa, Colorado, and Wyoming all are or have some part of themselves in Tornado AlleyTornadoes are most common in the United States, particularly on the central plains.
all in the tornado alley... and they are parts of Texas, Oklahoma, Kansas, Nebraska, eastern Colorado and western Iowa, and is characterized by a high frequency of strong and violent tornadoes and a relatively consistent season from year to year okay ? The correct Answer to the question is Weld County, Colorado with 252 reported tornadoes (1950-2010).
The U.S. averages between 1,200 and 1,300 tornadoes per year.
So far the year 2004 has had the most confirmed tornadoes in the U.S. at 1,817.
Approximately than 1000 tornadoes touch down in the United States each year on average.
tornado alley is where most tornadoes are located.
Tornadoes in the U.S. kill about 60 people each year on average.
Tornadoes occur in many areas around the world by no region experiences more tornadoes than the central United States. No one really knows for sure how many there are in the US each year, but it is estimated that over 1,000 tornadoes occur each year in the US, although many go undetected and unreported.
While the actual number of tornadoes that occur each year can't be measured, the United States sees an average of 1,000 tornadoes in a year. Most tornadoes hit between 4 and 9 pm in the evening.
Tornadoes can happen at any time of year but they are most common in sprind and early summer.
It varies, but the U.S. averages about 1,200 tornadoes each year.
That record is held by April 27, 2011 on which 207 tornadoes struck the U.S.
The second highest incidence of recorded tornadoes is in Canada, which averages about 100 tornadoes per year.
Tornadoes are most common in Texas