Thunderstorm Wind in Knox County, Illinois

Thunderstorm Wind August 18, 2025 · Knox County, Illinois

70 mph

Estimated gust (61 kt)

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

What the National Weather Service wrote

A trained spotter estimated 70 mph wind gusts for 2 to 3 minutes.

The wider storm

A cold front triggered scattered strong to severe thunderstorms in the Illinois River Valley during the evening of August 18th. A few of the cells produced 60-70mph wind gusts and minor wind damage, as well as prolific lightning.

Began near London Mills (40.7345, -90.2700).

Source: NOAA Storm Events Database, event 1289063. Narratives are written by the National Weather Service forecast office that issued the report.

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