EF1 tornado in Walworth County, Wisconsin

The tornado appeared to start north of School Section Rd and west of Old 89 Rd with mainly tree damage going to the east-northeast. The tornado then tracked along State Road 11 going east toward Delavan. About 4 farmsteads had damage to them, including one empty silo that was blown down from about halfway up. The tornado then continued east-southeast along Hwy 11 and ended near Redwood Ct on the west side of Delavan where it caused some tree damage.

A round of severe thunderstorms and flash flooding occurred as a strong cold front approached and tracked across southern WI. More specifically, supercell thunderstorms developed from northeast IA into southwest WI and far southern WI during the late afternoon and evening hours. Eventually these storms transitioned to a squall line which had a number of tornadoes associated with it, as it tracked through southeast Wisconsin. Flash flooding affected much of the same region especially in Janesville. Many large hail reports and a small number of downburst damaging wind reports were also received.