"Chaser Convergence" Is A Rising Tornado Death Risk

Tornado beginning to develop near Blue Rapids, Kansas on
May 18.  Hundreds of storm chasers converged on this twister.
Photo via Facebook, Live Storm Chasers

 On May 18, a huge supercell thunderstorm sent a tornado stabbing into the ground east of Blue Rapids, Kansas, population about 900. 

Beneath those roiling clouds, a convoy whose members might well have matched the population of the town gathered in roughly 500 vehicles on narrow rural roads, hoping for a glimpse, a photo or a video of the tornado. 

The tornado turned out to be relatively brief and harmless. 

It's called "chaser convergence," and it's dangerous. Converging air masses help produce tornadic storms. The chasers, in turn, converge on the tornadoes.

 Storm chasing has boomed louder than the thunder that supercells produce. Many of the storm chasers are experience and responsible. They know how tornadoes behave and what the safe distance is. They follow the rules of the road. 

Others...not so much.

"As I'm sitting on the highway, it was a continuous line of cars going east for 30 minutes. I mean it was crazy," said Blue Rapids Police Chief Ryan Woodyard. 

 That's a recipe for disaster. 

"There is a chance that there cold be, you know, a line of cars stuck in a traffic jam and that a tornado side swipes them can easily take out dozens of chasers and kill multiple, multiple people at one time," Darin Brunin, a local storm chaser told television station KSNT.   

Per Yahoo News:

"Storm chasers not only have to worry about tornadoes, but also other drivers. Storm chasers report driving is one of the greatest hazards of the job, while law enforcement said managing traffic  a become even harder for small towns with limited resources."

Storm chasers do die when chasing tornadoes, or heading home from or heading to or from the chasers. Four storm chasers died in two separate accidents during the 2022 tornado season. 

Some chasers near Blue Rapids were not obeying traffic laws. If emergency vehicles were needed, chances are they wouldn't be able to get through. The day the tornado touched down east of Blue Rapids, other storms threatened different parts of Kansas on May 18. By one estimation, there were 7,000 tornado hunters roaming the flat plains of the state. 

Commissioners in Marshall County, which includes Blue Rapids. are calling for some type of action  regarding uncoordinated storm chasers. The commissioners agree that chasers can provide life saving information for the public and initiate search and rescue since they are often on the scene before first responders get there. 

Chaser convergence isn't only a problem in Marshall County, Kansas, of course. Anytime there is a well-forecasted tornado outbreak, throngs of chasers are on the scene. 

There doesn't seem to be any calls to ban or seriously regulate storm chasers. But that day might come if there are more tragedies involving the chasers.