Thunderstorm Wind — Knox, Illinois

2025-08-18 · near London Mills, Knox, Illinois

Event narrative

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

Wider weather episode

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.

View location on OpenStreetMap → (40.7345, -90.2700)

Source: NOAA Storm Events Database, event_id 1289063. Narrative written by the NWS forecast office that issued the report.