May 7, 2010, Northwest Ohio Supercells

Yesterday’s outbreak of supercells in the southeastern Great Lakes was no tornado breeder, but it made for an enjoyable chase. I left Caledonia around 10:30 with Bowling Green in mind as a target, noting that the SPC had outlooked a narrow, northern swath of northeast Indiana and northern Ohio with a 10 percent tornado risk.

I wound up rendezvousing with my long-time chase buddy Bill Oosterbaan in Ashton, Indiana, where Mike Kovalchick also joined us. (Note to self: that Baptist church parking lot on the west edge of town has a fantastic hilltop view to the west.) We dropped south to Waterloo, where I parked my car at a convenience store, then hopped in Bill’s vehicle, and we headed east, watching as a cumulus field began forming overhead. The warm front was moving in, and when we left Ashton, the chilly temps were already rising and bringing the dewpoints with them.

Farther to the east, we hooked up with Ben and Mike Holcomb, and CMU meteorology students Aric Cylkowski and Cort Scholten. Our contingent of four vehicles at the Sonic drive-in made up what was probably the first chaser convergence that Bryan, Ohio, has ever experienced, and probably the last.

From there, we dropped south toward the warm front, which had stalled over the area. Temps had been in the lower 70s in Bryan, with east-northeasterly winds and dewpoints around 59 degrees; farther down the road, at our new location in a parking lot next to a cemetery, we gained another degree of dewpoint and the surface winds veered. On the radar, one discrete cell to our southwest began to take on supercellular  characteristics. We decided to intercept it, and the chase was on.

But another cell formed southwest of our storm, and in its tail-end position, it rapidly evolved into the main player of the day. So we left the storm we were on and headed toward the new one, which was hooking nicely. A couple miles south of the town of Paulding, we encountered one of the most flat-out beautiful hailstorms I’ve ever seen. It moved toward us in shifting, pearly strands across the fields. I tinkered frantically with the settings on my camera in order to get a fast enough shutter speed for snapping pics from our moving vehicle–there was no shoulder to the road, and no stopping–but by the time I finally had what I needed and Bill had found a turn-off, the amazing nuances and texture of the hail shaft had blended into a homogeneous sheet (click image to enlarge). I took a couple quick photos which nowhere near capture the essence of what we had seen just a minute or two prior; then, with maybe thirty seconds to spare from getting cored, we beat a hasty retreat.

Out in the field just to our southwest, we could see a crapload of dust being kicked up by the rear flank downdraft. We pulled aside and let it pass 100 feet or so in front of us. In the photo, notice how the dust fills the ditch to the right. I’ve read some discussions about the wisdom of the longstanding advice to abandon one’s car during a tornado and seek shelter in a ditch. Maybe that’s a best option in a worst-case scenario, but judging from the photo, it looks to me like the wind is doing a pretty good job of invading the ditch. Depending on the depth of a given ditch, tornado-force winds could conceivably just scoop a person up and launch them into the main air stream.

But I digress. The hail and RFD were the highlights of the day. From then on, it truly was a storm chase, and a futile one. With the storm rocketing to the east-northeast at 70 mph, we had a choice of barreling eastward and losing the storm to the north, or northward and watching it vanish to the east. We pursued it longer than we should have, but we had a fun time of it. The roads in that part of Ohio are great, the countryside is flat and open, and overall, the territory is fabulous for chasing. But when storms are moving at such breakneck speeds, the best road grids in the country–and these probably qualify–can’t compensate.

I managed to get a few shots of a cool, bell-shaped wall cloud as the storm moved away from us. Eventually, though, we called the chase off and started on our way back. West of Paulding, we encountered significant wind damage–large trees snapped off at their bases and pieces of outbuildings scattered across the fields at a couple farms. Could have been weak tornado damage, but it was likelier the work of straight-line winds.

I should probably mention the rope funnel that hung down from a small storm as we headed back toward Waterloo. Okay, it wasn’t really a funnel, just evidence of what wishful thinking can do with a snaky-looking cloud.

Back in Waterloo, I picked up my car, hit I-69 north, and headed home.

I noticed that Illinois-based storm chaser Adam Lucio was also on these storms, and appreciated his Facebook comment that you don’t need tornadoes in order to have an enjoyable chase. I wholeheartedly agree. Yesterday was a great chase, particularly for the Great Lakes, and that hail shaft near Paulding alone made my day.

Of course, everyone has been rumbling about the big event shaping up for Monday in the Plains. Wish I could go, but it’s not in the budget. Best wishes to everyone who heads out. Stay safe, get good photos and video, and have fun.