Hail — Logan, Illinois

2025-09-20 · near Atlanta, Logan, Illinois

Wider weather episode

An upper-level disturbance interacting with a nearly stationary frontal boundary triggered clusters of strong thunderstorms across central Illinois during the afternoon of September 20th. A storm cell intersecting an outflow boundary over Mason County resulted in an EF-0 tornado east of Mason City. Meanwhile other storms produced hail as large as quarters and isolated minor wind damage.

View location on OpenStreetMap → (40.2700, -89.2300)

Source: NOAA Storm Events Database, event_id 1289100. Narrative written by the NWS forecast office that issued the report.