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EF1 tornado in Iroquois County, Illinois

Tornado June 11, 2026 · Iroquois County, Illinois

EF1
Rating
1.2 mi
Path length
50 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 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 tornado with estimated peak winds of 90 mph touched down just south of E 500 North Road where it destroyed a farm outbuilding. It also downed a few utility poles. High resolution satellite data and drone imagery showed a clear narrow damage path through crops in a field to the east of N 2700 East Road and north of E 500 North Road before the tornado ended.

The wider storm

Severe thunderstorms moved across northern Illinois during the afternoon and evening of June 11th producing wind damage, localized flooding and several tornadoes.

Began near Wellington (40.5598, -87.6261).

Other tornadoes from the same storm system

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

EF3 Livingston CountyEF2 Cook CountyEF1 La Salle CountyEF1 Livingston CountyEF1 Ford CountyEF1 Ford CountyEF1 Du Page CountyEF0 Du Page CountyEF0 Ford CountyEF0 Iroquois CountyEFU Livingston CountyEFU La Salle CountyEFU Kankakee CountyEFU Lee County

Source: NOAA Storm Events Database, event 1341706. Narratives are written by the National Weather Service forecast office that issued the report.

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