Tornadoes are one of the deadliest disasters in the world but the country with the most tornadoes is the United States Over 1,000 tornadoes happen each year mostly in the states of Texas, Oklahoma, Kansas, Nebraska, Missouri and more! And each of those states have at least one tornado a year and also tornadoes can form from 65 mph to over 200 mph the fastest tornado was 318 mph and that was in 1999 the widest tornado is the El Reno tornado that is about a couple miles away from Oklahoma City it was the widest tornado in history for about 2.6 miles wide!