EF0 Tornado — Henry, Illinois

2025-04-20 · near Nekoma, Henry, Illinois

3.1 mi

Path length

120 yds

Path width

Event narrative

The tornado touched down about 1.5 miles northeast of Altona in Knox County (NWS central Illinois) traveling northward and proceeded north into Henry County where it destroyed two large grain bins and tossed the debris for nearly a mile to the northeast. The tornado snapped a power pole and a large tree along US Highway 34 before dissipating along N 300 Ave where it damaged an outbuilding.

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 → (41.1500, -90.1500)

Source: NOAA Storm Events Database, event_id 1255487. Narrative written by the NWS forecast office that issued the report.