Thunderstorm Wind — Mclean, Illinois

2025-07-25 · near Brokaw, Mclean, Illinois

Event narrative

An 8 to 10-inch diameter tree was snapped at the base.

Wider weather episode

An outflow boundary interacting with a warm and very humid airmass triggered a Mesoscale Convective System (MCS) over central Illinois during the late evening of July 25th. Nearly continuous lightning was observed with the storm cluster along with torrential rainfall rates of 2-3 inches per hour. The storms also created scattered minor wind damage from near Petersburg in Menard County northeastward to Waynesville in DeWitt County before gradually weakening later in the evening.

View location on OpenStreetMap → (40.4600, -88.8700)

Source: NOAA Storm Events Database, event_id 1277328. Narrative written by the NWS forecast office that issued the report.