Thunderstorm Wind — Grundy, Illinois

2025-05-15 · near Gardner, Grundy, Illinois

Event narrative

A wind gust to 78.7 mph was reported.

Wider weather episode

Severe thunderstorms moved across northern Illinois during the afternoon and evening of May 15th producing large hail including very large hail. Widespread wind damage was also reported. In the city of Chicago, at least 2200 trees were blown down.

View location on OpenStreetMap → (41.2042, -88.3118)

Source: NOAA Storm Events Database, event_id 1250715. Narrative written by the NWS forecast office that issued the report.