EF1 tornado in Du Page County, Illinois

The tornado dropped in an industrial park near N Main St just north of N North Ave on the far north side of Lombard. There, it caused roof damage to a couple of buildings. It continued on into the town of Addison where it caused roof damage to office buildings. The tornado then caused primarily tree damage as it tracked across a residential area of Addison south of Fullerton Ave before lifting as it crossed Fullerton Ave at Hale St. South and east of the tornado's track was a large swath of additional damage caused by straight line winds.

During the afternoon and evening of the 31st, a wave of severe thunderstorms produced numerous tornadoes, severe hail, extensive wind damage, and localized flooding across northern and northeastern Illinois. A total of 37 tornadoes were confirmed across the state. The NWS Chicago office tied a record for the most tornadoes to occur in a single calendar day within the office's county warning area with 22, 17 of which occurred in Illinois. One EF-2 tornado occurred in south-central Lee County and two others in northwest Indiana. Some of the more notable damage includes multiple semi trucks blown over, a garage that had been completely destroyed southeast of Amboy, and the partial roof collapse of the Apollo Theatre in Belvidere which unfortunately resulted in one fatality and 40 injuries.