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EF1 tornado in Henry County, Illinois

Tornado April 20, 2025 · Henry County, Illinois

EF1
Rating
7.2 mi
Path length
100 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

A tornadic debris signature was seen on the KDVN Doppler Radar up to 2,900 ft. Corn stubble and leaves were found along the beginning of the path. As the tornado approached the Hennepin Canal, tree damage was found with snapped hardwood trees and other branches. Additional branches were found just southwest of Shady Beach. The tornado was rated as EF-1 with a peak estimated wind speed of 90 MPH.

The wider storm

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.

Began near Morristown (41.4100, -90.2300).

Other tornadoes from the same storm system

11 more tornadoes the National Weather Service filed under this storm episode.

EF1 McDonough CountyEF1 McDonough CountyEF1 Henry CountyEF1 Bureau CountyEF1 Henry CountyEF0 Warren CountyEF0 Henry CountyEF0 Henry CountyEF0 Rock Island CountyEF0 Mercer CountyEFU Henry County

Source: NOAA Storm Events Database, event 1251994. Narratives are written by the National Weather Service forecast office that issued the report.

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