- The city of Chicago is administratively located within the boundaries of Cook County.
- Due to weather conditions, the NWS is forecasting rain and beach hazards for the area of Chicago, which is located in Cook County, Illinois.
Tornadoes hit both Cook and Will Counties, prompting a severe thunderstorm watch for Joliet.
1 report, 1 independent
Updated Aug 12
AI-generated analysis. Brind wrote this summary from the reports listed below. It can be wrong. Each section says how much you can rely on it, and the sources are linked so you can check.
What happened
Tornadoes hit both Cook and Will Counties, prompting a severe thunderstorm watch for Joliet.
Who's involved
What this event is mainly aboutKeep exploring
Part of
Due to weather conditions, the NWS is forecasting rain and beach hazards for the area of Chicago, which is located in Cook County, Illinois.Also in this story
- Cook County coordinated with local towns regarding the ongoing storm path threat.
- Extreme heat patterns affect county health outcomes in Cook County, monitored by the National Weather Service.
Within The city of Chicago is administratively located within the boundaries of Cook County.
The entities involved
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Cook County
county in Illinois, United States
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Will County
county in Illinois, United States
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National Weather Service
U.S. forecasting agency of the National Oceanic and Atmospheric Administration
Related events
- A tornado warning failure occurred in Illinois, alongside radar testing being conducted in Dodge County, Wisconsin.
- The National Weather Service monitored radar for tornado potential in Washoe County on August 18, 2026.
- Tornadoes touched down in multiple counties across Ohio, including Springfield and Clark County, on August 18, 2026.
- Surveying tornado damage in Ohio counties.
- The National Weather Service issued separate tornado warnings for Waukesha and general tornado warnings for Milwaukee County on August 18, 2026.