EF0 tornado in McLean County, Illinois

A tornado touched down 3 miles southeast of Saybrook about a half mile north of the intersection of East 750 North Road and North 4100 East Road at 7:06pm CDT. The tornado snapped a few large tree branches and peeled back the metal roof of an outbuilding before crossing into the National Weather Service Chicago County Warning Area (CWA) in southwestern Ford County just north of the Sangamon River at 7:07pm CDT.

A strong storm system interacted with a highly unstable and sheared environment to produce a significant severe weather outbreak across central Illinois during the late afternoon and evening of June 11th. Scattered supercell thunderstorms initially developed west of the I-55 corridor along a pre-frontal trough during the afternoon. One of these storms produced an EF-3 tornado that impacted portions of Woodford and Marshall counties and dropped tennis ball-sized hail (2.50 diameter). Additional cells rapidly developed further west across southeastern Iowa into northern Missouri ahead of an advancing cold front. These storms congealed into a line and pushed eastward into central Illinois during the evening. Widespread damaging wind gusts of 60-70mph occurred with the line along and north of the I-72 corridor. After storm surveys were completed, it was discovered an additional 8 tornadoes were embedded within the line...creating pockets of enhanced damage.