Thunderstorm Wind — Cass, Illinois

2021-07-10 · near Chandlerville, Cass, Illinois

52 EG

Magnitude

Event narrative

A tree was blown down across a road.

Wider weather episode

A Mesoscale Convective Vortex (MCV) generated by prior convection across Kansas and Missouri tracked into west-central Illinois during the afternoon of July 10th. Despite minimal instability, the enhanced low-level vorticity created by this feature was enough to trigger several rotating thunderstorm cells across west-central Illinois. Five brief tornadoes touched down across portions of Schuyler, Cass, and Morgan counties...with minor damage reported. Meanwhile further south, flash flooding occurred across parts of Clay County as thunderstorms with torrential rainfall skirted well south of I-70 during the evening.

View location on OpenStreetMap → (40.0500, -90.1500)

Source: NOAA Storm Events Database, event_id 966029. Narrative written by the NWS forecast office that issued the report.