Thunderstorm Wind — De Kalb, Illinois

2025-08-18 · near Genoa, De Kalb, Illinois

Event narrative

Genoa emergency management reported tree damage around both the north and south sides of town.

Wider weather episode

During the afternoon and evening of the 18th, a few rounds of thunderstorms brought torrential rainfall to much of northern Illinois resulting in flash flooding. One particularly strong storm also produced damaging winds in DeKalb County. Initial reports estimate $8.8 million in flood damages around northern and northeast Illinois, and around $2.5 million in the city of Chicago alone.

View location on OpenStreetMap → (42.1016, -88.6925)

Source: NOAA Storm Events Database, event_id 1288271. Narrative written by the NWS forecast office that issued the report.