What part of the US that seems most effected by tornadoes?
It is an area called tornado alley which stretches from Texas, up to Oklahoma, Kansas, Nebraska, Iowa, and North and South Dakota. It also includes parts of Colorado, New Mexico, Illinois, and Arkansas. But really, tornadoes can happen any time, any where.
The most common tornadoes are in the USA The 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 Alley Tornadoes are most common in the United States, particularly on the central plains.
What region of the US experiences violent tornadoes caused by the combination of climate and weather conditions?
It depends on the tornado. For most tornadoes the fastest winds occur at the edge of the core. For other tornadoes, especially large and/or strong ones the strongest winds occur in the suction vorticies, which are like mini tornadoes moving within the main circulation of a tornado. Tornadoes with this feature are called multiple vortex or multivortex tornadoes.
Since record keeping began in 1950 until the latest finalized record in 2012, Texas experienced 8,117 recorded tornadoes. Note that in the earlier part of this period, most weaker tornadoes were missed. Because of this, there are likely several thousand tornadoes that occurred in Texas, but were never recorded.