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Mother Nature is rarely predictable. While certain regions in the United States are known for specific natural disasters (for example, Hurricane are widespread In the Southeast, while earthquakes are common in California), a new study reveals a geographical change in weather conditions that could push tornado activity to states that were once considered safe from Twisters.

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Tornadoes in the eastern part of the country increased by 12% Between 1986 and 2020, according to a study published in the Journal of Applied Meteorology and Climatology . During this 35 -year period, more than 10,500 tornadoes occurred east of the original "Tornado Alley".

"Tornado Alley" refers to a "area of ​​the United States where there is a great potential For the development of the tornado, "by senior meteorologist accuweather Dan Kottlowksi .

Historically, this nickname belonged to the central plains, which includes a large part of Northern Texas, Oklahoma, Kansas, Missouri, Nebraska, East Colorado and certain parts of Iowa.

"This region is the most vulnerable to the development of the tornado, because the contrasting air masses frequently collide to produce strong and violent thunderstorms, which in turn prepare the ground for the development of the tornado," explains Accuweather.

However, it seems that flatlands pass the stick to their eastern neighbors, who are now considered "the greatest threat of tornado".

In the study, a map from 1986 to 2020 shows "an increase in tornadoes extended from the lower Ohio valley in the south and west to Oklahoma".

More specifically, Tornadogenesis culminated in Mississippi, Louisiana, Alabama and south of Tennessee. In addition, states along the east coast, such as North Carolina, Virginia, Virginia-Western, Maryland and Pennsylvania, have experienced tornadoes stronger than typical of the region. AE0FCC31AE342FD3A1346EBB1F342FCB

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While the "Tornado Alley" moves east, experts also warn that the "tornado season" is no longer linked to the summer. In fact, there was a 37% drop in summer tornadoes from 1986 to 2020 that the previous period of 35 years.

Now meteorologists are seeing a large increase in autumn tornadoes (80%) and winter tornadoes (102%) in the Southeast. Mid-Mississippi, Lower Ohio Vallées and deep southern parts also witnessed a "maximum" spring tornadoes.

All this to say that Twisters can form almost everywhere with the right weather conditions, even in colder weather. Although some experts argue that climate change is behind the change of tornadogenesis.

"We cannot in any way call a tornado something that is attached to climate change, but we can say the model whose things increase and become stronger, than is probably linked to a world of warming "Reported CBS News Senior Météo Producer David Parkinson .