Passionate about all things Australian. All tornadoes usually occur in tornado ally or in flat lands Improved Answer: Well, in summer or spring, a lot parts of the country are windy with hot air, and cold air...which forms a tornado.ornadoes are most likely to occur when a cold front or dry line is moving into an area, providing weak to modest lift in an area of sufficient instability with strong low lev … el wind shear, high helicity, and that has an inversion cap. 2 people found this useful.
http://www.answers.com/Q/Why_do_tornadoes_most_likely_occur_in_summer_spring
Although favorable conditions for tornadoes in the United States can occur at any time, they are most common in spring and least common in winter. Because spring is a transitional period for the climate, there are more chances of cooler air meeting with warmer air, resulting in more thunderstorms.he Midwestern states are very prone to tornado activity, as it is part of Tornado Alley.. States included in the area that are hit by tornadoes the most are Kansas, Missouri, Nebraska, Iowa, and South Dakota.
https://en.wikipedia.org/wiki/Tornadoes_in_the_United_States
  Further information:   Tornadoes need a combination of factors to form, and these factors are often associated with thunderstorms, which are most likely to occur in the warmer months.In fact the thunderstorms are what produce the tornadoes. Further information:   Tornadoes need a combination of factors to form, and these factors are often associated with thunderstorms, which are most likely to occur in the warmer months.
http://www.answers.com/Q/Why_do_tornadoes_happen_in_spring_or_summer
All tornadoes usually occur in tornado ally or in flat lands   Improved Answer: Well, in summer or spring, a lot parts of the country are windy with hot air, and cold air.. Further information:   Tornadoes need a combination of factors to form, and these factors are often associated with thunderstorms, which are most likely to occur in the warmer months.
http://www.answers.com/Q/Why_do_tornadoes_happen_in_spring_or_summer
Spring and summer often see the collisions between air masses with very different temperatures. This can create strong thunderstorms that can in turn create tornadoes. Further information:   Tornadoes need a combination of factors to form, and these factors are often associated with thunderstorms, which are most likely to occur in the warmer months.
http://www.answers.com/Q/Why_do_tornadoes_happen_in_spring_or_summer
117,852 Contributions. Tornadoes are most likely to occur when a cold front or dry line is moving into an area, providing weak to modest lift in an area of sufficient instability with strong low lev … el wind shear, high helicity, and that has an inversion cap.2 people found this useful.ornadoes are most likely to occur when a cold front or dry line is moving into an area, providing weak to modest lift in an area of sufficient instability with strong low lev … el wind shear, high helicity, and that has an inversion cap. 2 people found this useful.
http://www.answers.com/Q/Why_do_tornadoes_most_likely_occur_in_summer_spring
Most tornadoes in the United States occur east of the Rocky Mountains. The Great Plains, the Midwest, the Mississippi Valley and the southern United States are all areas that are vulnerable to tornadoes.They are relatively rare west of the Rockies and are also less frequent in the northeastern states.he Midwestern states are very prone to tornado activity, as it is part of Tornado Alley.. States included in the area that are hit by tornadoes the most are Kansas, Missouri, Nebraska, Iowa, and South Dakota.
https://en.wikipedia.org/wiki/Tornadoes_in_the_United_States
Tornados occur when the cold air mixes with the hot air so spring is normally when very cold air kind of hits pretty warm air and the molecules have something kind of like a reaction:).Source(s): Minnesota :). kelsey · 4 years ago.Thumbs up.ornados occur when the cold air mixes with the hot air so spring is normally when very cold air kind of hits pretty warm air and the molecules have something kind of like a reaction:). Source(s): Minnesota :). kelsey · 4 years ago. Thumbs up.
https://answers.yahoo.com/question/index?qid=20120208231300AAEB78K
The reason for the peak period for tornado formation being in the spring has much to do with temperature patterns in the U.S. Tornadoes often form when cool, polar air traveling southeastward from the Rockies overrides warm, moist, unstable Gulf of Mexico air in the eastern states.ornado occurrence is highly dependent on the time of day, because of solar heating. Worldwide, most tornadoes occur in the late afternoon, between 3 pm and 7 pm local time, with a peak near 5 pm. Destructive tornadoes can occur at any time of day, but are most common in the afternoon and early evening.
https://en.wikipedia.org/wiki/Tornado_climatology
Tornadoes are most likely to have tornadoes in the late winter and  spring, with the greatest activity generally occurring in late  March and April. Edit. Share to: Least Duck. 156,238 Contributions. All you need is love, Love-Love is all you need.ornadoes are most likely to occur when a cold front or dry line is moving into an area, providing weak to modest lift in an area of sufficient instability with strong low lev … el wind shear, high helicity, and that has an inversion cap. 2 people found this useful.
http://www.answers.com/Q/Why_do_tornadoes_most_likely_occur_in_summer_spring
why do most tornadoes form in the spring
The reason for the peak period for tornado formation being in the spring is due to temperature patterns. Tornadoes often form when cool, polar air traveling southeastward from the Rockies overrides warm, moist, unstable Gulf of Mexico air in the eastern states.  The reason for the peak period for tornado formation being in the spring has much to do with temperature patterns in the U.S. Tornadoes often form when cool, polar air traveling southeastward from the Rockies overrides warm, moist, unstable Gulf of Mexico air in the eastern states.