Thunderstorm Wind, Williamson
- When
- June 12, 7:30 PM CST
- Where
- Williamson County, 4 mi S of Marion
- Measured
- 61 kt (70 mph)
- Property damage
- $25,000
- Reported by
- NWS STORM SURVEY
- Coordinates
- 37.680, -88.930
Numerous large trees were blown down along Illinois Route 37. A metal roof was completely torn off an antique shop. A retired airline pilot estimated gusts were up to 70 MPH.