EF0 Tornado — Warren, Illinois

2025-04-20 · near Swan Creek, Warren, Illinois

4.0 mi

Path length

25 yds

Path width

Event narrative

Multiple deputies reported seeing a tornado from near Greenbush looking back southwest. Linking that with the garage damage by Swan Creek would make for a short-lived tornado which lines up with radar. There was no other damage reported by Warren County EMA Director. The tornado was rated EF-0 with peak estimated winds of 70 MPH.

Wider weather episode

A line of severe thunderstorms lifted north northeastward across northwest Illinois, mainly south of Interstate 80, on the evening of April 20th. This brought numerous tornadoes to the area as well as straight-line wind damage. Fourteen tornadoes occurred in northwest Illinois. 7 of them were EF-1, 5 EF-0, and 1 EF-U. The longest track tornado of the event was on the ground for 16 miles and traveled from Victoria in Knox County through Galva before lifting west of Kewanee in Henry County.

View location on OpenStreetMap → (40.6700, -90.6600)

Source: NOAA Storm Events Database, event_id 1251979. Narrative written by the NWS forecast office that issued the report.