…But Does a Fire Tornado in Australia Spin the Other Way?


This story was originally published by Slate and is reproduced here as part of the Climate Desk collaboration.

Last weekend I posted a video taken not too far from where I live showing a “fire tornado”—really a spinning vortex of rising air drawing its power from fire on the ground. It was pretty dramatic, mostly due to hundreds of tumbleweeds swirling around it, drawn in by the rotating column of wind.

After posting it, I got a note from Chris Tangey, who specializes in photography in Australia’s Outback. He took some footage of a fire tornado in 2012 (watch above) that he claimed was better than what I posted…and he’s right.

fire_tornado

Yegads. The speed and power of such a vortex depends on how quickly the air in the middle can rise, which in turn draws in air from farther out; as that air spins and falls in the rotation speeds up, tightening the vortex and magnifying it. As you can see in the fire, spurts of flame leap up the inside of the vortex, clearly giving it more strength. The sound and speed of it are enthralling.

I had never heard of this phenomenon until a year or so ago. But now there are cameras everywhere…and, sadly, with global warming likely increasing both the number and severity of wildfires, we’re bound to see lots more footage like this.

Note: The title of this post is a joke; in general the Coriolis force only acts on far larger scales, so I would think a vortex like this (such as a dust devil) is just as likely to spin clockwise as counterclockwise. It would be interesting to see some statistic on this, though!

More MotherJones reporting on Climate Desk

OUR NEW CORRUPTION PROJECT

The more we thought about how MoJo's journalism can have the most impact heading into the 2020 election, the more we realized that so many of today's stories come down to corruption: democracy and the rule of law being undermined by the wealthy and powerful for their own gain.

So we're launching a new Mother Jones Corruption Project to do deep, time-intensive reporting on systemic corruption. We aim to hire, build a team, and give them the time and space needed to understand how we got here and how we might get out. We'll publish what we find as a major series in the summer of 2020, including a special issue of our magazine, a dedicated online portal, and video and podcast series so it doesn't get lost in the daily deluge of breaking news.

It's unlike anything we've done before and we've got seed funding to get started, but we're asking readers to help crowdfund this new beat with an additional $500,000 so we can go even bigger. You can read why we're taking this approach and what we want to accomplish in "Corruption Isn't Just Another Scandal. It's the Rot Beneath All of Them," and if you like how it sounds, please help fund it with a tax-deductible donation today.

We Recommend

Latest

Sign up for our newsletters

Subscribe and we'll send Mother Jones straight to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate