by: Paul Dailey

Posted: Apr 28, 2020 / 12:35 PM CDT
/ Updated: Apr 28, 2020 / 01:29 PM CDT

CHICAGO —  The National Storm Prediction Center has the Chicago area under a risk of severe thunderstorms this afternoon and evening. They have also released the probability of thunderstorms within 12 miles of a given location (maps below) which pretty well follow the eastward progression of the low pressure center and cold front moving out of Iowa into and through Illinois.

For the time period 3-7 p.m., the highest probability (70%) of thunderstorms peaks in our westernmost sections as low pressure and the associated cold front move across the Mississippi River.

From 7 p.m. to 11 p.m., as the low pressure and cold front approach Chicago, the 70% probability peak occurs closer-in to Chicago and south over eastern Illinois and western Indiana.

Finally as the low pressure and cold front move slowly off to our east (11 p.m. to 7 a.m.), the likelihood of thunderstorms begins to drop off – to 10% in westernmost sections and 40% elsewhere.

For the latest weather updates, go to

enh_2000-7999811 Thunderstorm Probability 3PM – 7PM CDT enh_0000-3226193 Thunderstorm Probability 7PM – 11PM CDT enh_0400-4775224 Thunderstorm Probability 11PM – 7AM CDT

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