USA HISTORY

Detailed explanation-1: -Most tornadoes are found in the Great Plains of the central United States – an ideal environment for the formation of severe thunderstorms. In this area, known as Tornado Alley, storms are caused when dry cold air moving south from Canada meets warm moist air traveling north from the Gulf of Mexico.

Detailed explanation-2: -Data: NOAA/NCEI Storm Events Database. Texas is by far America’s most active state for tornadoes, averaging 151 twisters each year. In a distant second place is Kansas, with an annual average of 91 tornadoes.

Detailed explanation-3: -In an average year, about 1, 000 tornadoes are reported across the United States, resulting in 80 deaths and over 1, 500 injuries. A tornado is a violently rotating column of air extending from a cumuliform cloud and in contact with the ground.

Detailed explanation-4: -Tornadoes occur more frequently and are more intense in the Great Plains than in any other region on earth. Plains geography, with fringing mountain ranges running predominantly north to south, allows cold dry air from the north to collide with warm moist tropical air from the south.