Tornado Alley Is Shifting

[Randy Zipser]

This lengthy article from Climate Compass appeared on MSN on 2026-04-09, and may be of interest to ST readers. It is about studies suggesting that the location of the traditional Tornado Alley is shifting into the Midwest and Southeast states. Please see the link below:

Tornado Alley is shifting - what it means for Midwestern communities

 

[Jamie H]

Seems quite light on actual data and evidence though, and I couldnt even load their website to see who's behind it.

 

[Dan Robinson]

This is a great map to show when this subject comes up - all tornado tracks in the US from 1950 to 2021:

https://www.spc.noaa.gov/gis/svrgis/images/tornado.png

I know what this article, and many like it, are talking about is the human impacts. And the centroid of those very well could be shifting slightly east. But at least from a storm chasing standpoint, just from my anecdotal experience, the Midwest is a very unreliable and poor producer of quality, photogenic, forecastable tornadoes. I say that as a 16-year resident at this point who moved here specifically to chase Midwest events. It has its moments, sure, just like the Northern Plains does. But still nothing beats the Plains dryline for tornadoes when it comes to chasing.

 

[Luke Penney]

Similar existing threads:
Tornadoes shifting east in the U.S., study finds, putting more people at risk
Tornado alley is expanding — and scientists don’t know why

What articles like this need is a detailed view of data showing change over time (and not pointing out a few years for very streaky events like tornadoes). They do reference larger-scale trends in the data, but I don't see anywhere where I can look into the details. It's certainly plausible, but I'd want to see more evidence. (And a discussion of potential disconfirming factors, like people getting better at identifying the low-visibility tornadoes that happen more outside of traditional Tornado Alley.)
...I guess what I want to read is an academic paper and not a news article.

I think an important detail to note here (and Dan touched on this) is that the kind of tornado/storm makes a big difference to some groups and not others. Dixie Alley gets lots of tornadoes, but those tornadoes have a higher risk of being rain-wrapped, in a squall line, after dark, and/or in bad terrain for chasing. Traditional Tornado Alley has much better conditions for photogenic tornadoes, and its tornadoes are concentrated in a much smaller portion of the year. That makes a big difference to us chasers, but to someone doing housing-damage risk assessments, for example, those factors don't matter.
That's made it so Tornado Alley is still the best chasing, regardless of whether the highest-tornadoes-per-year stat is outside of Kansas and Oklahoma.

 

[Mike Smith]

The climate alarmists have been trying to sell this for about a decade.

The more likely response is it is part of Dr. Ted Fujita's "tornado cycle." For details: There Is Nothing New About the Hypothesis Tornado Alley Has Moved East

Let me know if you have questions.

 

[Randy Zipser]

All excellent discussions above.

It would be an interesting project to contrast these findings with the Palmer Drought Index trends over similar, long-term periods. If the tornado-shift trend is really permanent rather than cyclic in nature, it might logically follow that this tornado shift might be related to dryer-for-longer climatic conditions over Tornado Alley which potentially disrupt the return of low-level Gulf moisture in spring months that severe (and non-severe) storms are so dependent upon. In addition, a shift in where tornadoes are observed and reported may also be a function of evolving demographic trends: more tornadoes are being reported where more people are moving into; over the "long haul," recorded storm data may become skewed to mirror such population movement and especially urbanization. For example, if more people are leaving rural areas of Oklahoma and Kansas and are relocating in Missouri, Iowa, Illinois, Indiana, Ohio and Kentucky, as part of a systematic trend seeking more urbanized economic opportunity, the tornado threat could also "move" eastward. Perhaps the tornado-frequency centroid is not really moving, but rather reflecting a redistributing or shuffling of population, which may or may not be either long-term or permanent.

But in the end, however, all natural world, observed "trends" are destined to cease sooner-or-later because the natural "norm" over years, decades, centuries and millennia is randomness. Observed trends are human constructs, usually designed to satisfy some short-sighted, fleeting, human-aided agendas which, in turn, perpetuate the "trend(s)" in a seemingly-endless feedback loop. Could the observed shift of Tornado Alley be an example of this: more man-made than of natural occurrence? Likely, it's some combination of both, as random natural events (such as long-term drought) may lead to permanent human actions or changes [such as seeking cooler or wetter (stormier?) places to live].

One thing is for sure, however: like "global warming," the "tornado-shift" question has been kicked around in meteorological circles for nearly half-a-century and is not going away anytime soon...