Severe Storms and Flash Flood Warnings Impact Chicago Area
Severe Storms and Flash Flood Warnings Impact Chicago Area
US · Published Aug 12, 2026
The Chicago area is under an AccuWeather Alert following severe weather earlier in the week, including tornadoes and a rare derecho.
On Wednesday morning, storms triggered a Tornado Warning in LaSalle County and Severe Thunderstorm Warnings across the region, which have since expired.

Impact & Risks

The severe weather poses risks to residents in the Chicago area, particularly in south and southwest suburbs under a Level 2 risk. Strong winds are the main hazard, with potential for flash flooding in northwest Indiana and several Illinois counties. Travel disruptions are significant, with over 50 flight cancellations at O'Hare Airport and delays of approximately one hour at both O'Hare and Midway airports. The region has already experienced 68 tornadoes this year, highlighting the ongoing vulnerability to extreme weather. (Source: WLS)

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