Thunderstorm Wind — De Kalb, Illinois

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

Event narrative

Three power poles were downed along Old State Rd between Five Points Rd and Church Rd west of Sycamore.

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 → (42.0081, -88.7536)

Source: NOAA Storm Events Database, event_id 1288299. Narrative written by the NWS forecast office that issued the report.