Uploaded May 2022 | Updated September 2026, 2 days ago

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GoPro dashcam footage (with audio) of the derecho moving over our mobile mesonet vehicle while parked in the Stone’s Truck Stop parking lot in Watertown, South Dakota.

I made the decision to shelter inside the truck stop as the storm approached. Several QLCS circulations were present along the leading edge, including a confirmed tornado in Castlewood to the south of Watertown.

The mobile mesonet sampled a peak wind gust of 81 mph with a one-minute average wind speed of 60 mph as the leading edge of the derecho overtook the vehicle.

iPhone video of the derecho approaching Watertown with tornado sirens: youtu.be/UrKneW746TE

Dashcam timelapse footage: youtu.be/ridbDEXPJMY

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The mobile mesonet maximum and average wind speed graph can be viewed here: twitter.com/derek605wx/status/1524893152582283264?s=21&t=TA_RcIvJmmkBFvqCscgLgg
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Camera Model: GoPro

My email and social media links can be found here: derek605wx.com

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Copyright © 2022 Derek Thompson
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