One year ago today, the second EF5 tornado in the history of the new Enhanced Fujita Scale rating system descended on Parkersburg, Iowa, and obliterated the southern third of the town. I and fellow storm chasers Bill and Tom Oosterbaan and Jason Harris could see the intense rotation moving over Parkersburg on GR3 as we stairstepped southeast from the northern edge of the cell, heading for an intercept. There’s a certain sense of disbelief when you see something like that, a feeling of, Naah, it can’t be as bad as it looks.

But it was. A few miles farther down the road, with the rotation still at least ten miles to our west, debris–some of it fairly large–began to fall from the sky. That was when we knew for sure. Something terrible had happened. Even with pieces of sheet metal clanging down onto the pavement in front of us, I had a hard time believing that a tornado disaster had just occurred, but I think we all felt a certain sober awareness that a community had been hit.

We intercepted the storm near Fairbank, where the NWS indicates that the Parkersburg tornado occluded. Parking on a sideroad, we watched as a large, new wall cloud formed and moved directly toward us. Warning an Amish family who was standing in their yard, watching, to take shelter, we scooted south and then east, watching as the wall cloud lowered and kicked up a ton of dust. A second, enormous tornado had formed, barely discernible through the haze. We tracked with it to the east as it headed on a collision course for Hazleton, mercifully grazing the southern edge of that town. Had it hit head-on, I suspect that the Hazleton tornado’s EF3 rating would have been higher.

It’s hard to believe that a whole year has passed since that event and the several days of Great Plains action that preceded it. What a difference between then and now, with a nasty ridge casting a pall on this May’s peak chase season.

In remembrance of the Parkersburg/Hazleton tornadoes, I’m including a couple visuals. The first is a radar grab of the supercell as it moved out of Parkersburg. The tornado icon is a storm report from the town, just minutes old. You can see our GPS position marked by a circle with a dot in the middle of it on the northeast edge of the storm

The second is this YouTube link to my video of the Hazleton tornado. My videography may not be the best in the world, but I think you’ll get a sense of the intensity this storm evoked. It was my first really big tornado, and it was close.

I doubt this year has anything in store for us  like what we saw that day. But who knows? I’m not ready to write off this chase season yet–though I certainly hope it doesn’t hold a catastrophe like the Parkersburg tornado.