Tornado season arrives up to two weeks earlier in Plains
The period of peak tornado activity in the southern and central Plains occurs up to two weeks earlier than it did 60 years ago, says a study by Montana State University. The authors of the study say documentation of the shift could help residents of Nebraska, Kansas, Oklahoma and northern Texas prepare for the destructive storms. Peak activity in "Tornado Alley" runs from early May to early July. That's seven days earlier than in the mid-1950s. Aside from Nebraska, the shift was nearly two weeks.