Chicago, IL – Stormy conditions are forecast to impact parts of Illinois on Wednesday, with potential for damaging winds and isolated tornadoes, followed by an intense heatwave this weekend bringing heat indices above 100°F.
According to the National Weather Service Chicago, scattered thunderstorms will begin overnight Tuesday and continue through Wednesday afternoon. The greatest risk for severe storms lies in areas south of a Paxton to Valparaiso line, including Kankakee and Rensselaer, with the highest threat level marked at 3 out of 5. Storms may develop between 11 a.m. and 4 p.m., with uncertainty surrounding the westward boundary of the most severe impacts.
Potential threats include damaging wind gusts, localized flooding from heavy rainfall, and the possibility of isolated tornadoes. Residents are urged to monitor updated forecasts and remain weather-aware throughout the day.
As the storm system moves out, attention shifts to a prolonged period of extreme heat. By Saturday, highs will surge into the mid to upper 90s across the region, with peak heat indices expected to top 100°F, potentially continuing into early next week. The National Weather Service warns that the elevated temperatures and humidity could lead to heat-related illnesses, especially for vulnerable populations.
Evening heat indices are expected to remain in the 90s, offering little overnight relief. Officials recommend staying hydrated, wearing light-colored clothing, taking breaks in shaded or air-conditioned environments, and limiting outdoor activity during the hottest parts of the day.
The heat advisory covers a wide area including the city of Chicago and surrounding suburbs. Residents should prepare for multiple days of high heat and take necessary precautions.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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