Thunderstorm Wind in Sherburne County, Minnesota

Thunderstorm Wind July 22, 2023 · Sherburne County, Minnesota

58 mph

Estimated gust (50 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Dispatch relayed multiple reports of trees down in Zimmerman. Time estimated by radar.

The wider storm

A subltle shortwave trough within northwest flow moved across the region and provided enought lift for scattered afternoon thunderstorms. There was sufficient MLCAPE (1500 J/kg) and Effective Shear (30kts) for some stronger updrafts that produced severe hail and damaging wind gusts. Overall these storms were relatively short lived and died off once the outflow undercut the updraft.

Of particular note, in Elk River a tree feel on a tent where there was a birthday party ongoing. There were 3 minor injuries.

Began near Zimmerman (45.4400, -93.5900).

Source: NOAA Storm Events Database, event 1103321. Narratives are written by the National Weather Service forecast office that issued the report.

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