June 10, 2026: Derecho Produces Widespread Wind Damage Across Northern Illinois

News Headlines

June 10, 2026: Derecho Produces Widespread Wind Damage Across Northern Illinois
June 11, 2026: Tornado Outbreak, Including Multiple Strong Tornadoes Across Northern Illinois and Northwest Indiana
KZZ-81 Lockport NOAA Weather Radio Currently Has Degraded Signal
Routine Weekly NOAA Weather Radio Test Postponed Until Friday, June 12th

NOTE: This page is still under construction and will be updated over the next few weeks as we continue to conduct our post-event analysis. We thank you for your patience!

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Overview
Storm Reports
Rainfall
Photos
Radar
Meteorology/Environment
Additional Info

Overview

Page last updated: 1:00 AM CDT Friday, June 12, 2026

Multiple rounds of thunderstorms occurred in northern Illinois and northwest Indiana on Wednesday, June 10th.

The most impactful storms occurred during the afternoon, when a line of thunderstorms produced wind gusts of up to around 80 mph that led to widespread wind damage across much of northern Illinois.

The line of storms that impacted the area on June 10th was formally classified as a derecho, which is a long-lasting thunderstorm complex that produces a swath of particularly damaging thunderstorm winds (specifically, wind gusts of at least 58 mph along most of its length with several well-separated 75 mph or greater gusts) over an area at least 250 miles long.

Storm Reports

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Preliminary Storm Report Map

Preliminary National Storm Reports

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Rainfall

Map of Approximate Rainfall Totals

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Photos


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Radar

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Meteorology and Environment


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Additional Information

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