GAAHHH! TORNADO!

Two years ago I was passing through Joplin, Missouri.  Only a month had passed since the town was almost entirely destroyed by an F-5 tornado.  Like most people everywhere else, I was nothing but full of sympathy for what had happened to the people there, but like most people, I also let the event slip into the back of my mind as the weeks went on.  I was very sharply reminded about what had happened; most hotels in the area were either closed, packed full of relief workers and displaced locals, or no longer standing.  What had seemed like a convenient stopping place for the night on a long trip from California to Michigan turned into a reminder that we live on a continent that is very, very naturally destructive.  Overhead information signs directed a ton of relief workers into action, with an entire exit off of I-44 dedicated just to outside assistance entering what was left of the city.  I took no pictures of what little could be seen from the interstate, which was horrific.  Trees, buildings, everything... flattened. 

So how does the sort of thing happen, how did people in the past deal with it, what should we do about it, etc?  I figured I would wait to post anything about tornadoes until the media hysteria had died down regarding the recent Oklahoma disasters, but seeing as how I just encountered a weak tornado of my own a few days ago, now seemed to be as good a time as any.  Tornadoes, more than most natural disasters, seem to make people rubber-neck and dive into as much information on the matter as possible.  The press, therefore, jump all over the tragedies involved as fast as they can and a lot of rapid speech and decrying of the fury of nature runs out of the mouths of many a reporter.  For the most part, though, they get their facts straight. 

Tornadoes are the result of colliding air masses within a larger storm system causing a bunch of air to rapidly rotate.  The winds that result within really powerful tornadoes, such as the one which hit Joplin, are among the most powerful winds on our planet, making hurricanes seem mild in comparison.  Hurricanes, in fact, can spawn multiple tornadoes within them, something which happens often in the Carolinas and Georgia when the storms make landfall there.  While one imagines a tornado to suck everything out of existence, its damaging effects are actually the result of the rotating winds knocking around debris which can include entire houses, trees, and trucks.  Nevertheless, as I can confirm from personal experience, one does feel as if one is being sucked off the ground into the blue, or rather gray and lightning illuminated yonder. 

(Before anyone asks, this happened on I-80, at the only tollbooths in Illinois for I-80.  The car I was in was lifted a few feet off the ground before it was thankfully plunked back down just a foot or so in front of where it lifted off.  Yes, I thought I was going to die.  I have also been within a few hundred feet of an F-5 tornado at the corner of where Nebraska and Colorado meet near Ogallala, Nebraska, and more recently a small rope tornado near Whitmore Lake, Michigan.) 

So why do they happen so often here?  You know that bit about air masses doing a dance?  It just so happens that North America is one of the most chaotic battlegrounds for air masses coming in contact with one another.  In the north we have Hudson Bay, which together with our large continental mass (oceans tend to moderate temperatures, dry land tends to let them go nuts in one direction or another) extends cold air masses much closer to the equator than anywhere else on earth.  Frosts have been reported as far south as Tampico, Mexico, clearly in the tropics.  During the last ice age, the frigid Hudson kept pumping out glacial masses of ice that extended closer to the equator than any other non-alpine location on the planet.  In the other corner, the Gulf of Mexico is a heat and humidity factory wherein the great global ocean thermal conveyer belt (say that five times fast) suddenly turns from deep and cold to shallow and hot.  It produces the Gulf Stream which tends to make Europe a pleasant place in terms of temperature moderation.  It also gives the eastern part of our continent our amazing forests and plentiful water.  It also gives us summer days where we can practically watch the paint peel off of the walls because everything is so damn sticky. 

Now, put the two of these together and we get amazing storms.  Make the already very different layers of the atmosphere dance with even greater surface extremes between those larger air masses and we get our destructive tornadoes.  Sure, they get them in Europe now and then, they get them in China (where they have a scaled down version of our hot-cold fight between Siberia and the South China Sea), they get them in the tropics, and they even get them on top of mountains, but nowhere near the intensity and frequency with which they happen in central North America.  Oklahoma is the worst place to be for this sort of thing.  A small part of the state's southeastern corner has a climate and landscape very similar to the rest of the classic "South", complete with palmettos and bald cypresses.  The middle of the state is a rapid transition between forested east and dry open plains, so much so that the space of a few miles can actually turn from big sky country into "hey, where did these trees pop up from?", and that big sky country out west is really dry compared to the eastern side. Winter time can feature decent 50's near Arkansas to sub-zero chills in the panhandle.

Texas panhandle, near the Oklahoma border, US 83 southbound. 

I-44 between near Oklahoma City, not much over 100 miles east and a very different world.

As a result, the winds tend to dance a lot in Oklahoma.  The process does happen just as violently, however, in the rest of the area of the great meeting of air masses.  Though not nearly as frequent, tornadoes are a good possibility during the summer storm system all the way up in Ontario and Pennsylvania.  The Ohio and Tennessee river valleys, full of rolling, wooded landscapes, are hardly what people think of as a prime tornado region, and yet the get tornadoes that can sometimes stay on the ground for well over a hundred miles. 

So good grief, we say, and why do people live there, we ask?  People have lived there for over 10,000 years actually.  The practice of living was a bit different, mind you.  The Pawnees, Osage, and other prairie peoples tended to be a bit more mobile than modern prairie people tend to be.  The main reason for this was a food culture based on the plentiful game of the prairies and one in which the drier region could not necessarily be counted on to offer the same bounty as the corn and squash fields back east could.  Even in the lush climate times of the middle ages, when peoples in the Ohio and Mississippi valleys and southern Great Lakes were building sizable cities with elaborate earth works and farming quite a bit, the plains peoples kept on following the buffalo.  Why?  Probably because a giant hand would come out of the sky and flatten everything in sight.  The Lakota, who originally hailed from Minnesota and northwestern Ontario, abandoned their more permanent settlements when they got chased onto the plains hundreds of years ago by the Ojibwe.  This didn't last forever, of course.  The second born came from the east and started planting permanent settlements.  I often wonder if the first Euro-Americans would have stayed had there been F-5 tornadoes in Jamestown or Quebec...

Initially settlers built half-buried, sod topped houses.  They were easier to make without having to haul in wood from the east, tended to be cooler, and in some cases even afforded a little bit more protection from the violent storms of the great big open sky.  The early prairie pioneers were a tough sort of folk, and many would-be Kansans and Nebraskans turned away screaming when they had to deal with the rugged life on the plains.  Some went back east, many just passed through to places with more promise like California.  Eventually, however (this is the WHY do people live there now bit), improved plows made farming a simpler affair, the legendary tough tallgrass sod being broken by the steel hand of Mr. John Deere.  Free land through the homestead act made the region increasingly attractive, and, well, money talks.  There are cities there now, rather large ones, and economic opportunities keep calling people away from the unemployment of the rust belt. That aside, the area is incredibly beautiful.  Long, open sightlines and a grand drama of the sky, which as you can see in the Texas picture above, is often far more inviting than it is discouraging. 

People tended to bring with them the comforts of home when the wild west became a bit less wild.  Wood frame houses sprang up, and planted trees made little towns feel more like the beloved Virginia or New York that had been left behind.  Yes, storms and drought came along to spook people, but many stayed and some even returned when they became complacent and forgetful.  Like I noted, it took less than a month for Joplin to sit in the back of my mind.  I dare say that is pretty average for people who don't get affected by tornadoes, and I have actually been intimate with three.  Besides, some towns have been around for quite some time and managed to either survive or not see large scale destruction.

Elk City, Oklahoma, main street.  Many of these buildings are from the early twentieth century and look like they have made it OK.

 People recover.  People rebuild.  Plains people and (true) Midwesterners are built from tough stock, so the saying goes.  What can we do about them, or better put, what we can we do in such regions to better handle the big wind?  As any southern Floridian can tell you, wood does not cut it in the face of powerful forces.  While Miami is turning just as wood frame and vinyl sided as the rest of the country, the historical trend for building to resist hurricanes down there was concrete construction.  Sure, an F5 is an F5, but concrete can handle way more than fragile wood can.  In the meantime, donate to the Red Cross to help those who got a pretty potent reminder that we are not always in charge of the world around us.  Better yet, donate in a month's time when the need will still be great and the money flood will slow to a trickle because we all forget about what happened. 

And again, yes, tornadoes are terrifying to be in, and yet also strangely beautiful.  That's how I feel about them anyway.