Yes, tornadoes are a serious threat to Illinois. Violent tornadoes (EF4 or stronger) are a farily regular occurence in Illinois. These are the tornadoes that are known for devastating communities.
Yes.
It depends on which states you are talking about. Tornadoes are a serious threat in the Midwest and South, but less so in other states.
yes there can be
Yes. The state has seen a number of major outbreaks with tornadoes as strong as F4.
Not really. Although tornadoes can hit Tuscon, it is unusual and tornadoes stronger than EF1 are rare in Arizona.
Not really. While tornadoes do occur in New York, strong tornadoes are rare and deaths are even less common.
Yes. Although not as common as in Tornado Alley, tornadoes are fairly common in Ohio. The state has even seen several F5 tornadoes.
Generally not. While tornadoes do occur in California they are usually weak and, to date, nobody in California has ever been killed by a tornado.
Yes. Tornadoes are not uncommon in Illinois.
Yes. Every year in the U.S. tornadoes cause dozens of deaths, hundreds of injuries, and hundreds of millions, if not billions of dollars worth of damage.
There were 73 tornadoes in Illinois in 2011.
There were 123 tornadoes in Illinois in 2006.