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Chicago Area Weather Forecast: Brief Cool-Down Before Heat Returns
10 months agoUS
Chicago residents can expect a roller coaster of weather this week, with a brief respite from the heat before temperatures climb back into the 90s. Scattered thunderstorms are also in the forecast, so it's important to stay informed and prepared.
Key Insights
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A brief cool-down is expected midweek, with temperatures in the low to mid 80s and lower humidity.
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High humidity will return by the weekend, with heat indices potentially reaching 100 degrees.
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Scattered thunderstorms are possible throughout the week, with the highest risk west of Interstate 55.
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"Corn sweat," or evapotranspiration, from cornfields could contribute to strong-to-severe storms.
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Why this matters:: Understanding these weather patterns allows residents to plan their activities, take necessary precautions during storms, and prepare for the return of extreme heat.
In-Depth Analysis
The Chicago area is experiencing a dynamic weather pattern. Monday night saw showers and thunderstorms moving into Illinois from the southwest. While most areas will dry out by Wednesday morning, a beautiful stretch of seasonal temperatures and low humidity is expected. However, this break will be short-lived, as Friday marks the beginning of another heat wave. Saturday is expected to bring heat indices in the 100s.
Scattered severe storms are also a concern. The main area of concern for heavy rains and gusty winds is west of Interstate 55. McHenry and Lake counties remain under a flood watch. The storms are fueled by humid conditions and potentially enhanced by evapotranspiration from cornfields, known as "corn sweat."
Here's a day-by-day breakdown:
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Tuesday: Partly cloudy with temperatures in the mid-80s and high humidity. Isolated thunderstorms possible between 3 p.m. and 8 p.m.
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Wednesday: Refreshing weather in the low to mid-80s with much lower humidity.
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Thursday: Slightly cooler, with temperatures in the low 80s and ample sunshine.
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Friday: Temperatures climb back into the upper 80s and low 90s.
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Saturday: High humidity returns, with heat indices near 100 degrees and high temperatures in the mid-90s.
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Sunday: Cold front expected to bring the best chances for showers and thunderstorms.
FAQs
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Q: What is "corn sweat" and how does it affect storms?
"Corn sweat," or evapotranspiration, is the process by which corn plants release water vapor into the atmosphere. This can increase atmospheric moisture and potentially contribute to the intensity of storms.
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Q: Which areas are at the highest risk for severe storms?
Areas west of Interstate 55, including McHenry, Lake, DeKalb, Kane, and LaSalle counties, are at a marginal risk of severe storms.
Key Takeaways
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Stay updated on the latest weather forecasts and alerts from the NBC 5 Storm Team and FOX 32 Chicago.
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Take precautions during thunderstorms, such as seeking shelter indoors.
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Prepare for the return of high heat and humidity by staying hydrated and avoiding strenuous activities during peak hours.
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Be aware that areas west of I-55 face the highest risk of severe weather.
Discussion
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