I haven’t seen a storm like last night’s storm in Michigan in a long, long time. Man, what a beauty!

Non-stop lightning, much of it appearing to be positive strokes that lasted for seconds at a time, along with a veritable feast of anvil crawlers, made for a photographic smorgasbord. Plus, the storm structure–as much of it as I could make out at night, illuminated by the incessant lightning–was truly impressive. If only the storm had arrived an hour earlier, when there was enough light to really see the thing!

I had just finished doing a couple of interviews down in Dunlap, Indiana, for the book I’m writing on the 1965 Palm Sunday Tornadoes. My meetings required me to forgo chasing a supercell that moved through the Battle Creek area as the warm front lifted northward, and I was curious to find out what had happened with it. Pulling into a parking lot, I fired up my computer, opened GR3, and gaped. A line of supercells was advancing across Lake Michigan from Wisconsin. The first one in the line looked great–SRV showed definite rotation–and, headed on an ESE trajectory, the storm was poised to make landfall around Saugatuck. Winds there were almost straight easterly, and they were beautifully backed across most of lower Michigan. Hmmm…what did the VAD wind profile look like at Grand Rapids? Dang, sweet! How the heck did that kind of setup wind up in Michigan?

The storms weren’t moving terribly fast, around 25 knots. Could I make it in time? I was bloody well going to try. There was no denying the rush of adrenaline now galvanizing me, thrusting me into chase mode. I hit US 20 and headed west past South Bend, where the highway merged into US 31 north.

I still had a good 40 miles to go by the time I connected with I-196 near Benton Harbor. I wasn’t sure whether I’d catch the storm by the time it made landfall. Maybe I’d be better off playing more to the east. But I decided to take my chances, and that turned out to be the right move. I couldn’t have timed it better.

As I approached M-89, the eastern part of the storm had made landfall, but the radar showed the rotation still out over Lake Michigan. It wouldn’t be there for long, though, and, having shifted its trajectory south of Douglas, it was now heading straight at me.

Bingo! This was exactly what I’d been hoping for. Leaving the Interstate, I headed east along M-89 and found a nice, open field a mile down the road, just west of 66th Street, 4 miles south of Douglas and 4 miles west of Fennville. Then, turning my car around to face the incoming storm, I parked and grabbed my camera out of the back seat.

The lightning in this beast requires superlatives to describe it. There seemed to be a never-ending supply of high-voltage CGs, delivered with the unbridled, over-the-top enthusiasm of a 4th of July fireworks finale and accompanied by the incessant grumbling of thunder. There were times, as the lightning cells moved past me and surrounded me, when I felt like I was sitting inside an immense flashbulb–a flashbulb that kept firing again, and again, and again. Oh, man, what an extravaganza of pure, searing power and beauty! I’ve done my best to capture it, but my skills as a lightning photographer fall far short of what this storm had to offer. Now, my buddy Kurt Hulst, he’s Da Man when it comes to getting fantastic lightning shots, and I know he got some last night. Me, I seem to have a problem getting a good, crisp focus at night, but I try.

By and by, the flickerings began to illuminate a cloud feature I’d been looking for: a hint of a beavertail off to my northwest. It’s location confirmed what the radar was telling me: the storm’s mesocyclone was moving straight at me. I was in a perfect location–and all this time, standing out in the field near my car, I had yet to feel so much as a drop of rain.

The mosquitoes were thick and nasty, and I was getting eaten alive, but viewing at my position was excellent. Farther east, I’d be getting into thick woods, and since the storm wasn’t exactly rocketing along, I stayed put until the meso got too close for me to be able to distinguish its features. Then I moseyed east a few miles.

I parked again for a few minutes at 63rd Street and noted that what had begun as a stubby beavertail had rapidly grown into an enormous inflow stinger. To my northwest, I could see what appeared to be a large, low wall cloud–hard to determine exactly what it was or what it was doing at night, but it looked convincing enough that I called it in to KGRR.

I tracked just ahead of this storm all the way to Plainwell. M-89 proved to be a perfect route, angling southeast along roughly the same path that the storm was taking. On the outskirts of Allegan, I stopped long enough to grab a few radar images. On this page, you can see a nice vault on the base reflectivity, and pronounced rotation on the storm relative velocity. (The circle just southeast of the town center marks my location. Ignore the marker with my name farther to the southwest on SRV; it’s old, an archive from when I dropped off of Spotter Network.)

A little farther down the road, I pulled aside again where a large, open stretch afforded good viewing. The mesocyclone was clearly visible, with a formidable-looking flange on the north side, nice striations, and an impressive inflow band circling in overhead. I hung out at that location until the lightning drew too close for comfort, then hopped back into my car and continued east.

At Plainwell, I dropped south on US 131 past the Kalamazoo exit, caught M-43 west for a mile or so, then parked in a parking lot and let the storm’s southernmost edge blow past me. The storm was still tornado-warned, but the radar indicated that it was weakening–cloud tops lower, VIL not as robust. North of me, just on the other side of M-43, a sheet of rain cascaded out of the wind-blown darkness into the luminous orange domain of the street lamps. Within half a minute, it was upon me, and for a short while, I sat and enjoyed the blast of downdraft and deluge. The rain that I had managed to elude all night had finally caught up with me.

Finally, as the storm bowed out on its journey eastward, I drove back to US 131 and headed for home. I stopped again for a while at the Martin exit, long enough to see what would become of another supercell that was moving inland from the Lake. It, too, quickly bowed out, but, in keeping with the tone of the day, it lit the after-midnight sky with a bombardment of lightning.

It was good to finally pull into my parking lot, climb the stairs to my apartment, and step inside. It had been one heck of a day, and I was ready to call it a good one and hit the sack.

As nasty a storm as it was, why didn’t the Allegan County supercell drop tornadoes? The storm earlier in the afternoon had produced at least one tornado near the Battle Creek airport; why not this one too? After all, it and its compatriots had peppered Wisconsin with tornadoes prior to crossing the Lake and heading for West Michigan. All I can surmise is, CAPE was an issue. Winds certainly appeared favorable for tornadoes, and F5 mesoanalysis indicated 1 km helicities ranging from 150-250 across the area as late as 1:00 a.m. The RUC model sounding for KGRR maybe overdoes helicity, but it’s interesting to see what it says about instability. All I can think is that daytime CAPE–whatever it may have been; I never took the time to find out–petered out after sundown, and the shear alone wasn’t enough to spin up tornadoes. That’s my guess as a non-meteorologist, and I’m ready to get other insights and opinions from more knowledgeable heads than mine.

Whatever the case, last night’s was one heckuva storm, and the kind of chase I don’t get to enjoy too often in Michigan. It was nice to finally get such a great opportunity.

Even as my book “The Giant Steps Scratch Pad” nears completion–it now awaits only the cover, which is being designed by a graphic designer friend of mine–my other, more ambitious project is also moving along. That would be my book on the 1965 Palm Sunday Tornadoes.

With important (to me, at least) information in my hands and a key interview now completed, the latest delay has been purely my own making. But it’s about to end. This afternoon I head down to Elkhart, Indiana, to interview my first two tornado survivors, one a retired police officer and the other an emergency worker who helped with rescue operations at the Midway Trailer Court.

This is exactly the boot in the butt I need to get myself going on the next phase of the book: firsthand accounts of tornado survivors. In the months to come, I anticipate making trips to northern Indiana and southeast Michigan, not to mention places in my hometown area of Grand Rapids, in order to get people’s stories straight from the sources.

If anyone reading this post was directly involved in the tornadoes (that is, you got hit by one of the tornadoes or otherwise witnessed a tornado in action) or knows of someone who was whom you think I might want to interview, please leave a comment on this post or else contact me.

Also, if you know of photographs of the actual storms that aren’t already in common circulation, I’d be keenly interested in seeing them. I’m not talking about damage photos, nor am I talking about photos such as the twin funnels hitting Midway that are accessible online. Rather, I’m thinking of old, long-forgotten photographs that might be sitting in your dresser drawer that you or your Uncle Pete snapped with the old Brownie camera. That kind of picture.

This next part will take time to complete, but it should be easier overall than the first part, particularly the second chapter. More updates will follow when I have news that’s worth sharing.

Look at this skew-T and hodograph and tell me they’re not to die for. They’re the 00Z NAM for tomorrow, 21Z, at Rochester, Minnesota. Click on the images to enlarge them. (Apologies for the weird pulldown menu obscuring parts of the images. I don’t know why that happened.)

Unfortunately, I can’t afford to chase tomorrow, but I have a hunch that those who do will be rewarded for their efforts. This particular sounding is just a sampler. I’m not sure what to think about that surface-based CAPE. It’s over 6,000 J/kg. If that even comes near to verifying, the western Great Lakes could be in for a convective blitzkrieg. The 1 km EHI is 5.9 and the 4 km VGP is .968.  Lifted index at -12.6–can that be right? I guess I kind of suspect readings like that–the instability seems just plain absurd.

Wish I could make it out there. Good luck to those who do, and stay safe. For a summer setup, this thing looks insane. I will be watching the radar tomorrow evening, that’s for sure.

A weak cold front has slowly been working its way through Michigan today, with storms firing ahead of it in a very soupy warm sector. Ugh! With temperatures the past several days ranging from the upper 80s to 90 degrees and dewpoints as high as 73 here in Caledonia, it’s about time things cooled off and dried out a bit.

Unfortunately–or fortunately, depending on your point of view–all that lovely moisture has been wasted on insipid lapse rates and humdrum wind fields. What can you do with 500 mb winds of 25 knots or less? Answer: not much.

So what’s with that red dot in Wisconsin in yesterday’s storm reports? Not only did a tornado occur near the town of Cambria, but from the looks of the YouTube videos I saw, it was fairly impressive. Certainly those were more than momentary spin-ups which that Little Storm That Shouldn’t Have put down.

How on earth did it do that? There was nothing happening synoptically that suggested even a remote possibility of tornadoes. So when that puny cell across the lake from me went tornado-warned on GR3 yesterday, I just shrugged it off. Obviously a fluke, some weak Doppler-detected rotation, signifying nothing.

Just goes to show how Mother Nature can mess with your head. According to the NWS office in Milwaukee, that little stinker put down a tornado that lasted 14 minutes, traveled four miles, and did EF1 damage. The level 2 velocity couplet on it was unmistakable. Here’s the full writeup by KMKX, complete with radar images and a photo of the storm right after the tornado had lifted.

Storm chaser Scott Weberpal speculated on Stormtrack that there may have been some kind of interaction between an outflow boundary left by earlier convection. I can’t imagine any better explanation for why what should have been a pussycat of a pulse-type summer storm turned into a barn wrecker. Had the storm gone tornadic farther east, the lake breeze might have been suspect, but the cell was well inland from Lake Michigan.

Today I noticed a couple storms over in the Flint area displaying weak rotation on the radar, and one of them took on that telltale supercellular shape. Given the anemic upper winds, I’d normally have instantly written them off, but after yesterday…well, I watched and wondered, not expecting anything and therefore not disappointed when nothing happened, but still curious. What might happen if any cells firing in that vicinity moved into the Huron lake breeze zone, where the veering surface winds were liable to back?

As it turns out, the storms behaved the way you’d have expected them to given their environment. The last of the line is presently moving through southeast Michigan. But dewpoints are still in the low 70s, and a few popcorn cells are sprinkling the radar. Through my sliding glass door, I can see a big, mushy tower making its debut. Think I’ll grab my saxophone and camera and head out to get some practice in. With a little luck, maybe I’ll get a few lightning photos as a bonus.

It’s July 4, Independence Day. Happy Birthday, America! For all the problems that face you, you’re still the best in so many, many ways. One of those ways, which may seem trite to anyone but a storm chaser, is your spring weather, which draws chasers like a powerful lodestone not only from the all over the country, but also from the four corners of the world.

This has been an incredible spring stormwise, but its zenith appears to have finally passed for everywhere but the northern plains. And right now, even those don’t look particularly promising. That’s okay. I think that even the most hardcore chasers have gotten their fill this year and are pleased to set aside their laptops and break out their barbecue grills.

Now is the time for Great Lakes chasers to set their sights on the kind of weather our region specializes in, which is to say, pop-up thunderstorms and squall lines. The former are pretty and entertaining. The latter can be particularly dramatic when viewed from the eastern shore of Lake Michigan, sweeping in across the water like immense, dark frowns on the edge of a cold front. If you enjoy lightning photography, the lakeshore is a splendid place to get dramatic and unobstructed shots. Not that I can speak with great authority, since so far my own lightning pictures haven’t been all that spectacular. But that’s the fault of the photographer, not the storms.

The images on this page are from previous years. So far this year I’ve been occupied mainly with supercells and tornadoes, but I’m ready to make the shift to more garden variety storms, which may not pack the same adrenaline punch but lack for nothing in beauty and drama.

July 4th is a date that cold fronts seem to write into their planners. I’ve seen a good number of fireworks displays in West Michigan get trounced by a glowering arcus cloud moving in over the festivities. But tonight looks promising for Independence Day events. Storms are on the way, but they should hold off till well after the party’s over.  That means we’ll get two shows–the traditional pyrotechnics with all the boom, pop, and glittering, multicolored flowers filling the sky; and later, an electrical extravaganza, courtesy of a weak cold front. A Fourth of July double-header: what could be finer than that?

Last night’s bow echo certainly didn’t disappoint. I first spotted it in Wisconsin when it was a supercell putting down tornadoes near Milwaukee and thought, “That sucker is headed straight at us.” I watched as it hit Lake Michigan, maintaining rotation for a while but eventually morphing into a big bow echo. But what a bow echo! That northern book-end vortex really cranked as it moved inland and into the Kent County area. For a few scans of the radar, it looked like a small hurricane. Little wonder that it generated tornado warnings with a few reports of sightings by spotters and law enforcement.

But nasty a storm as it was, last night’s weather was probably just a prelude to what today, Wednesday, has in store. Veering surface winds taken into account, this could nevertheless be a tornado day for Michigan. The NAM shows a 70 knot 500 mb jet max blowing through the area, CAPE over 2,500, 70 degree dewpoints, and STPs to make a chaser happy.

Looks like it’ll be Kurt Hulst and me on this one. Bill is heading to Lansing to hang out with Ben Holcomb, and I think Mike Kovalchick is going to join them. That’s a good place to start. I’m not sure that I want to play quite so far east early in the game tomorrow, but I’m sure we’ll wind up well east of Lansing before the day is done. As of the 00Z run, it looks like the H5 will be nosing into West Michigan around 18Z, kissing an intensifying LLJ. Kurt and I had talked about setting up shop around I-96 and M-66. We’ll see what the 6Z run has to show us and play it from there.

At last, a Michigan chase with some real potential! And while I had guessed that storm motions would be in the neighborhood of 40 knots, the NAM decelerates them to a very manageable 25 knots. This could prove to be an interesting day, though I hope not a terribly impactful one. Southern Michigan has a lot of population centers, and I inevitably have mixed feelings whenever I see a big weather event shaping up for this area.

We were close to the tornado, roughly a quarter mile south of it, paralleling it as it tore an eastward course through the Illinois fields. Dirt and shredded corn swirled around its base like an aura. As Kurt Hulst and I  pulled aside and stepped out of the car to take pictures, we could hear the roar. It wasn’t loud, just audible and big, very big, an intensely focused sound like an immense blowtorch or a rocket engine. Yet, close as Kurt and I were to the tornado, we were out of its path and beyond the range of any apparent debris, and I sensed no particular danger.

A brief staccato of blue flashes suddenly lit up the base of the funnel, accompanied by a loud bang, and chunks of debris flew skyward and centrifuged out. The tornado had hit a structure out in the field, most likely an outbuilding of some kind.

Fortunately, there was little real harm the twister could do out there in the broad Illinois prairie. Not yet, anyway. But a little way to the east lay Yates City, and two-and-a-half miles farther, the community of Elmwood…

The day had started off rather inauspiciously, with the previous evening’s aggressive SPC outlook degrading into a forecast for straight-line winds. The 12Z NAM, too, looked unpromising, and the RUC corroborated it, with mostly southwesterly surface winds veering with height to a unidirectional, westerly mid- and upper-level flow. A persistent batch of cloud cover from a mesoscale convective system threatened to minimize daytime heating and instability. In a word, the setup wasn’t one that suggested tornadoes.

But with a trough digging in from the west, rich moisture, great shear, and at least a semblance of clearing moving in from the southwest, Kurt and I decided to chance it anyway. Our friend and fellow Michigan chaser Ben Holcomb had alerted us the previous evening to the evolving weather situation, and after reading Friday night’s Day 2 Convective Outlook and scanning the NAM, which showed an impressive juxtaposition of the right ingredients, including high helicities stretching along I-80 from Iowa into Indiana, we knew that we had to go.

So off we headed for Illinois late Saturday morning. As Kurt pointed out, the forecast models don’t always have a good grasp on things. One thing we could tell from both the NAM and RUC, though, was that the best parameters now lay well south of I-80. Accordingly, we set our sights on Galesburg, and once there, we continued on, crossing the river at Burlington and heading west into Iowa.

I took a dewpoint reading of over 72 degrees on my Kestrel at New London. The air was juicy. But the clearing we had driven through in western Illinois was giving way to a an extensive mid-level cloud deck. Rather than continuing to forge farther west toward the cold front, we decided to backpedal eastward in the hope that convection would fire near the edge of the cloud shield. This idea became a moot point as the cloud cover rapidly expanded across the river into Illinois.  But better parameters still lay in our area. We were presently in an area of maximum sigtors and optimal 1 km helicity, and on the radar, a scattering of blue popcorn echoes suggested that localized convection was trying to get started. Anticipating that these features would all translate to the east, we drifted back in that direction.

We soon noticed a cloud base with a tower reaching up toward the higher cloud deck. It showed on the radar, as did another stronger one directly down the road from us. As we headed toward it, the second echo progressed from yellow to red. Not far to our northeast, we could see a rain curtain. Skirting it, we moved east of the developing storm cell, parked, and got our first good look at it.

The cell was organizing nicely and was already showing supercellular characteristics–nice separation of the  saucer-like updraft base from the precipitation core; a strong, crisp, tilted updraft tower; the first signs of banding, and a hint of an inflow stinger. Positioned on the southeast edge of the convective cluster in southeast Iowa, it was in a favorable position to ingest moist inflow unimpeded by other storms as it drifted at 30 knots toward Illinois.

This was our storm. We tracked with it back across the river, watching it develop, watching the base lower and the first hint of a wall cloud blossom and put on muscle, watching it tighten as the RFD notch wrapped around it.

Just southeast of  Maquon, Illinois, we saw it: a cloud of dust billowing up from the ground with brief, streaming tendrils of condensation forming and dissipating above it. Tornado! It was a brief appearance of maybe a minute’s duration, but the storm was just getting started, mustering energy for the next round.

We didn’t have long to wait. A minute or two later, as we proceeded down CR 8, a slender elephant’s trunk of a funnel probed its way earthward, intensified, and began gobbling its way through the corn, closing in to within a quarter-mile of us before turning straight east.

This turned out to be a beautiful, highly photogenic tornado, all the moreso for the amazing display of lightning that accompanied it. Kurt took some great video of it which will give you a much better appreciation for how electrified the tornadic environment was. At one point, at the 8:50 mark, you can see a bolt shoot directly from the funnel to the ground. I didn’t have the good fortune to witness the famed Mulvane, Kansas, tornado, but I’ve got to believe that this storm was similar in terms of its incessant lightning.

The funnel morphed through a variety of elegant formations, and the overall storm structure was beautiful. It was a stunning and mesmerizing sight, but with growing concern, Kurt and I realized that it was making its way toward Yates City and didn’t show any sign of weakening.

Fortunately, the funnel veered slightly to the northeast, passing just to the north of the town. At that point, it was an intense drillpress spinning furiously a mile distant. We closed the gap and tracked with it as it headed toward the larger town of Elmwood, just a couple miles down the road.

What was the funnel doing? It appeared to be shifting to the right. Oh my gosh! Elmwood was going to get hit! The tornado was beginning to rope out, but not in enough time to spare the town. Taking a hard right, it plowed through the town center. Three-quarters of a mile ahead of us, power lines arced and transformers exploded, debris blasted into the air, and a large dust cloud billowed skyward.

It is a weird and awful feeling to witness a community get hit by a tornado. I’ve seen it happen twice before in Springfield, Illinois, and in Iowa City, but those were night time events. It’s different in broad daylight, when you can see what’s happening. The rather blurry photo shown here was taken just before the tornado crossed Main Street in downtown Elmwood. It’s not a very dramatic shot. You can see a few pieces of debris floating in the air and no more than a cloud tag to mark the presence of the tornado. But a second or two after the photo was taken, things got very nasty in that town. If there’s anything at all good to be said about what happened there, it’s that no one got killed or, as far as I’m aware, even injured.

A couple hundred yards south of Elmwood, the tornado dissipated. Gone, poof, vanished just like that. There’s a certain ugly irony about a force of nature that can wreak havoc in a community and then vanish a few seconds later without a trace. If the tornado had dissipated just thirty seconds sooner, a lot of people might have experienced just a good scare rather than a local disaster.

Kurt and I continued tracking with the storm as it made its way toward Peoria. The next tornado soon formed–a larger, bowl-shaped cloud with multiple vortices. This broadened out into a large tornado cyclone with multiple areas of rotation that produced, among other things, a brief but spectacular horizontal vortex. Sorry, I have no photos to show of it. It had gotten too dark, we were moving, and any picture I took at that point would have been blurred beyond recognition.

In Peoria, we got a bit snagged by roads and traffic, but thanks to Kurt’s great driving, we soon found ourselves heading east on I-74. As we crossed the Illinois River, I could see what appeared to be a large cone funnel to our north making its way across what was probably Upper Peoria Lake, silhouetted by frequent strobes of lightning.

Catching CR 115 at Goodfield, we headed north to Eureka, then continued east along US 24. We were still tracking with the storm, which was slowly weakening as the next tornadic supercell to its north began to dominate. It was still no pansy-weight, though, and at Chatsworth, in a final show of strength, it spun down a brief but well-defined rope tornado.

As our storm merged with the northern storm around Kankakee, Kurt and I caught I-57 and headed home. After May 22 in South Dakota, I really didn’t expect that I’d get another decent storm chase in. But this El Nino year, which got off to such a rotten start for storm chasers, now is paying dividends with some highly photogenic tornadoes.

And the season isn’t over yet. There’s no telling what the rest of June may hold. I doubt I’ll be making any more forays this year into the Plains, but if the Great Lakes region continue to light up, I’ve got my camera and laptop ready.

To see more photos from this chase, click here. And while you’re at it, check out the rest of my images of storms, tornadoes, wildflowers, people, and whatnot in my photos section.

Most of the time when I chase storms in Michigan, it’s as a wannabe sitting in my armchair gazing wistfully at my radar as I follow the action out west. Every once in a while, though, I get something right here in my own state that’s worth hopping into my car and driving after with my laptop and camera at hand and hope in my heart.

Today is shaping up to be such a day. It’s about time. June is upon us, and that means the peak tornado season has finally arrived for Michigan. Frankly, that term, “peak tornado season,” strikes me as glaring overkill when it comes to Michigan. But we usually have a few incidents every year, and today could be one of them. Perusing the last couple of NAM runs, including the 00Z, and running a few model RAOB soundings, I’m casting my eyes on the Flint-Pontiac area, where surface winds appear to remain, if not backed, at least southerly at 00Z tomorrow evening.

With dewpoints at or exceeding 65 degrees below a warm front draped across central Michigan, straight westerly mid- and upper-level winds with 45-50 knots at 500 mbs, and forecast SBCAPE upwards of 2,000 J/kg, there certainly look to be some decent ingredients in the vat. Insolation will be either the eye of newt that either makes the magic happen tomorrow or the missing ingredient that quashes instability thanks to blowoff from storms farther west.

Attached are a couple soundings, the first for 23Z at Flint and the other for 00Z at Pontiac. Not bad-looking hodographs, particularly for Michigan. As you can see, the surface winds are southerly. Farther west, they veer to the southwest, though they by no means create a unidirectional scenario. Interestingly, while the STP and Stensrud Tornado Risk indices spotlight the area around Flint, F5 Data’s APRWX tornado index bullseyes Grand Rapids down toward Kalamazoo. Maybe that’s because a 500 mb jet max noses into this area by 00Z.

Traditionalist that I am, I prefer backed, or at least southerly, surface winds if I can get them.  So as of the 00Z run, I’m eyeballing parts east, probably up around Flint near the warm front. The morning run may tell a different story. I just hope it’ll be a positive one.

Here’s to sunny skies, decent CAPE, and a good, productive backyard chase!

ADDENDUM: I wrote the above last night. The morning picture changes things a bit. Specifically, the satellite shows a nasty batch of CAPE-killing clouds blowing into the area from an MCS out west. That’s bad news. However, the clouds show some clearing expanding in their midst. That’s good news. Moreover, Mike Kovalchick sent me an HRRR model radar image showing a supercell popping up in mid-Michigan at 22Z. I’m sure that’s dependent on decent CAPE, which presumes enough clearing for good afternoon heating.

This latest info is good to have, but it doesn’t change my game plan, which is to wait and see what happens by the afternoon.

There’s nothing funny about finding yourself trapped at the end of a dead-end road with multiple tornadoes bearing down on you. It’s not a scenario one anticipates when heading out on a chase, but it’s the one my chase partners Bill and Tom Oosterbaan, Mike Kovalchick, and I found ourselves in, along with seven other vehicles full of chasers, last Saturday in South Dakota.

Up until the moment when the road we were on ended abruptly at the edge of a farmer’s field, we were simply performing a routine maneuver: select an escape route and take it when the storm draws near. We and the other chasers had chosen 130th Street east of CR9 as our best eastbound option. It looked good on both DeLorme Street Atlas and Microsoft Streets & Trips: a nice through road connecting with 353rd Avenue three miles away. It was a perfectly logical choice, and things would have proceeded without incident had the maps been accurate.

What the maps didn’t show was that a farmer had recently plowed over the road, converting it to a field. We made that delightful discovery two miles down. The road had already begun to degrade, rendering a couple mudholes which Mike’s Subaru Outback plowed through without a problem. But the field was a show stopper. Suddenly, poof! No road. On an ordinary day, this discovery would have been an inconvenience. With tornadoes breathing down our neck, it was horrifying.

But I’m getting ahead of myself. Let me backpedal a bit to set the stage. After stopping to enjoy the eminently photogenic fourth tornado that followed the nasty Bowdle wedge (see previous post), the four of us headed north to CR2/125th St., then turned east. The storm was morphing into a high precipitation supercell (photo at top of page). We watched it drop a couple more rain-wrapped tornadoes. Then it pulsed, catching its breath and gathering energy for the next round.

Dropping south down CR9, we pulled aside by a roadside pond to grab a few photos. The updraft area was a couple miles to our west, and while it didn’t presently seem to be tornadic, appearance can be deceptive. The cloud base was low, nearly dragging on the ground, with suspicious lowerings forming and dissipating. It looked like it could drop something at any time, and chances are it was even then producing random, momentary spinups.

Hopping back into our vehicle, we proceeded farther south to the corner of 130th Street, where we once again parked. Here, we bumped into chasers Ben Holcomb, Adam Lucio, Danny Neal, and Scott Bennett. We had last seen these guys at a truck stop in Murdo; now here they were again, along with several other vehicles, all converging out ahead of the meso in the middle of nowhere. In the photo, left to right: Tom, Ben, Bill, and Scott.

As the storm drew closer, Tom pointed out that rotation was beginning to organize overhead. It was time to skedaddle. Back into Mike’s Outback we clambered, with Tom at the wheel, and headed east down 130th Street.

At this point, it’s important to bear in mind that every vehicle that showed up at our location had independently pre-selected 130th Street as a valid escape route. What followed did not begin as a desperate dash for safety, but as a calculated, run-of-the-mill tactical maneuver informed by commonly used mapping software. Most of the people involved were experienced chasers, some of them veterans. The reasoning behind our road choice was sound. Unfortunately, the information we based it on was not.

Thus it was was that two miles down the road, suddenly there was no road. At the front of a string of other chase vehicles, we were the first to make that discovery. Tom turned around and started heading back, yelling to the next vehicles that the road was out. It was then that a tornado suddenly materialized in the field maybe half a mile to our west, just south of the road. It was a regular drill press, spinning furiously as it made its way toward us. It finally crossed the road and headed east-northeast a few hundred feet away, but even as it did so, another, thicker funnel snaked to the ground at roughly the same place where the first one had formed. I don’t think most people saw this second tornado; it moved toward us briefly, kicking up dirt, then dissipated, though I could still see swirling motions in the rain bands where it had been.

In the photo, besides the rope tornado, notice the lowerings farther back. These meant business. We were at the eastern edge of a broad area of rotation that was dropping not suction vortices, but multiple tornadoes of various sizes, intensities, and behaviors. In my observation, these were NOT moving in cyclonic fashion around a common center, but east with the parent storm–and straight at us.

A large cone appeared to the west, which, gathering strength, moved through the field to our north. By this time, it was clear that we were in a truly lethal situation, cut off to the east by a dead-end road and to the west by tornadoes.

Windy? Hell yes it was windy. The inflow was cranking like a sumbitch, and from the looks of things, it was only going to get worse. I looked around for a ditch, but there was absolutely nothing that could have offered protection. I noticed a stout post a few yards away and contemplated lying flat and wrapping my arms around it. Tom had the same idea. Mike was eyeballing a large pile of stones a hundred yards away, thinking it might provide some shelter, but it was too far a dash with no time left to make it in.

It was at this point that UK chaser Nathan Edwards drove off the road and began heading south into the field. He told me later that he was simply attempting to clear some room for other vehicles to move forward, hopefully edging just a little bit closer to out of harm’s way, but Nate’s move prompted the rest of us to follow. In a last-ditch gamble, the entire entourage of chase vehicles began fleeing south along the fence boundary.

The tornadoes were close. Really, they were on top of us. I watched as two funnels formed a couple hundred yard west of our vehicle, twisting around each other and moving toward us like the “sidewinders” in the movie “Twister.” The rain curtain was full of swirls and braids. And what was particularly unsettling was that, as we dashed across the farmland, the business part of the storm seemed to be expanding, reaching out after us. For a mindless force of nature, this storm was displaying as close as you can get to malevolent intent.

It dawned on me that if ever there was a time to pray, and pray hard, this was it. I’m a Christian–a bit of an iconoclast in that I don’t buy into a lot of Western church culture, but I love Jesus, I’m serious about following him, and conversing with God comes naturally to me. I don’t mean just in a pinch, but as a lifestyle. You can bet that at this point, I began praying most intensely.

A couple hundred yards in, we encountered a wet area and ponding and were forced to forge our way into the cultivated field. It was there that the storm caught up with us in earnest. End of the road for real. There was nothing left to do now but hunker down, pray, and hope.

Obviously I’m here to tell the story. All of us are, every last person. That none of us were killed or seriously injured, or for that matter sustained  so much as a scratch, is in my book God’s love and mercy, pure and simple. A video clip by Adam Lucio shows a tornado forming right in our midst, not ten yards from one of the vehicles. I never saw it, but Adam’s video is conclusive and sobering. We came so close, so very close. The rear flank downdraft alone had to have been in the order of 100 miles an hour. Yet nothing truly bad happened to any of us.

Some may call that a lucky draw; I call it answered prayer. Believe what you will, but there’s more to the story, an experience uniquely mine that I’ve shared with only a couple people so far. Look for it in my upcoming, final post concerning this incident. Whatever you make of it, I think you’ll agree that it’s uncanny.

That’s it for now, but this story continues. What followed with the farmer who owned the field, the sheriff and police, and other locals is for another episode, and it’s still not entirely resolved.

I’ll leave you with two images, both taken when the worst of the storm had just moved past us. One shows some of the vehicles getting slammed by the still-hellacious RFD. The other is a GR3 radar grab of the rotation and our location relative to it, shown by the circular GPS marker.

With that, I’ll sign off. Keep an eye out for parts four and five.

I’ve never witnessed anything like the tornadoes of last Saturday in South Dakota. If supercells were sushi and I could order a al carte, what I got is exactly what I’d have ordered, with the exception of how this chase ended up. But that’s material for a different post. Suffice it to say that in terms of both the storms and the overall experience, May 22, 2010, truly was the storm chase of a lifetime.

Yet I came close to missing it. The forecast models were all over the place with the synoptic setup. The GFS indicated formidable capping. The NAM offered more hope, but convective inhibition was still clearly a huge consideration. And the upper-level winds looked borderline.

But if the right ingredients did come together and the cap broke–and it looked like there was a chance that this could happen–then a whopping 5,000 j/kg CAPE would be at hand to produce explosive convection.

So Mike Kovalchick and I pulled the trigger. The potential was worth the risk of traveling 1,000 miles for a blue sky bust. My friends and long-time chase partners Bill and Tom Oosterbaan had also been tipping on the fence with this setup, but they, like Mike and me, decided it was worth a roll of the dice. So off went the four of us in Mike’s Subaru Outback, headed for South Dakota.

We stopped in Murdo to gas up and bumped into a few other chasers, including Ben Holcomb, Adam Lucio, Danny Neal, and Scott Bennett. We would run into these guys again later, but, as I’ve already mentioned, that’s for another post.

Leaving Murdo, we dropped down to White River to wait for more data. Mike got antsy about capping in our area, though, and he was right. So we hopped back into the Outback and headed north toward a nice field of bubbling cumulus. These were becoming more aggressive to our east, so we caught US 212 and headed toward Gettysburg. Just after we crossed the Missouri River, the cap broke and a tower began to billow upward. Things happened rapidly after that.

With MLCAPE in the neighborhood of 4,500 j/kg fueling its updraft and a 50 kt H5 jet to help organize it, the storm went supercellular almost from the get-go. From left to right, here are Bill, Mike, and Tom watching it get its act together. It didn’t take long for that to happen.

Half an hour later, 45 minutes tops, the first tornado of the day formed a mile southwest of us and strengthened rapidly into a robust cone that, moving at maybe 25 mph in a northeasterly direction, crossed the road to our west and passed to our north at a distance of a quarter of a mile. Quite the exhilarating experience, but also somewhat frustrating as my camera chose that time to give me trouble. Moisture from the rain lashing in on the rear flank downdraft was likely the culprit, but in any case, the shutter refused to snap. I should have brought a plastic bag for my camera. Nevertheless, I managed to get a few decent photos.

The tornado lifted a few minutes later and a new one rapidly formed. At this point the storm had moved off to our northeast, but it was moving slowly. For once, we weren’t chasing a rocket ship. The storm was easy to keep up with, providing ample opportunity for repositioning, and the view from the rear was flat-out spectacular. The second tornado grew quickly into a large, white cone and then a wedge, positioned underneath an amazing, bell-like mesocyclone. The structure was just unbelievable, with turbulent swirls of cloud wrapping around the parent circulation like daubs of frosting on an immense, revolving birthday cake. Nothing short of a work of art, an awesome sculpture of wind-carved moisture drifting across the prairie. It’s strange and amazing that something so violent can also be so beautiful. The first photo at the top of this post gives you a closer view.

This tornado eventually dissipated, the storm pulsed, and then the third tornado of the day formed and swiftly turned into a monstrous wedge. We tracked with it along US 12 as it took an eastward turn and headed toward the town of Bowdle.

With horror, we realized that we were about to watch a large, violent tornado strike a community. It was no more than half a mile to our north and, taking a right turn, was heading slightly southeast toward the road ahead of us according to the GR3 SKIT marker. We pulled aside to avoid getting eaten. Other than that, all we could do was pray for the people in Bowdle.

There was nothing pretty about this tornado. It was a smudge of darkness boiling beneath a low and intensely agitated cloud base. The wind was powerful, and as we sat there, a bunch of large plastic conduits came tumbling across the field in our direction. Fortunately, these missed us, and the tornado changed its course, just sideswiping the north end of Bowdle and taking out some large, high-tension electrical towers.

Had the tornado not shifted, I am as certain as can be that we’d have witnessed another Greensburg, Kansas/Parkersburg, Iowa scenario. Thankfully, considering what might have been, this violent wedge had relatively minimal impact. The damage it did cause has subsequently earned it an EF-4 rating.

The Bowdle tornado dissipated east of town and the storm once again pulsed, giving us time to get ahead of it and position ourselves to its southeast before it dropped its fourth tornado. This one was the most photogenic yet, going through a variety of forms and phases. At its inception, it reminded me of a picture of a tornado in Gothenburg, Nebraska, that I saw in a weather book as a kid. Really a beauty, a classic, with a long, dark elephant’s trunk  kicking up dirt in the open field a mile to our northwest.

The tornado morphed into a truncated tube with multiple vortices circling around its base like braids in a rope, then into a needle. It finally reconsolidated into another classic, Kansas-style funnel, as photogenic as you could ever hope for, before finally dematerializing, leaving behind it nothing more than a troubled cloud base. How can something so powerful hinge on a balance so delicate that it can translate from a killer into nothingness in a matter of seconds?

I’ve presented the photos of this last tornado sequentially to give you a sense of its life cycle. But as visually stunning as it was, the structure of its parent supercell was no less impressive. I like to see the big picture. Tornadoes are just a part of the storm; there’s much more to enjoy as well. Beaver tails and tail clouds. Updraft towers. Wall clouds. The fabulous, banded look of a mesocyclone.

I’ll leave you with one last photograph of the entire scene, with the tornado spinning like a dervish in the distance beneath the storm. What followed next is a story in itself, one that I’ll never forget.

Don’t worry, I won’t leave you hanging. Look for Part 3, coming soon to a blog site near you.