Thunderstorm Wind in Benton County, Iowa

Thunderstorm Wind December 15, 2021 · Benton County, Iowa

81 mph

Estimated gust (70 kt)

Death

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

What the National Weather Service wrote

A semi-trailer was blown over during severe thunderstorm winds. The driver was thrown from the vehicle and pronounced dead at the scene.

The wider storm

An intense storm system brought record warmth, high winds, and a serial derecho though Iowa and the Upper Midwest on December 15th. This storm system produced a line of severe storms which continually produced damaging winds and tornadoes from Nebraska through much of Iowa. In eastern Iowa and Illinois, no tornadoes occurred, but widespread severe wind gusts occurred with brief heavy rain.

Strong winds occurred through the day along with the record high temperatures. After the storms moved through, those winds peaked at 60 to 80 mph for several hours in the late evening.

Began near Walford (41.8800, -91.8600).

Source: NOAA Storm Events Database, event 993812. Narratives are written by the National Weather Service forecast office that issued the report.

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