ComEd reported more than 7,000 customers in DuPage County were without power as of around 4 p.m. Around 1,000 more were impacted across Chicago.

The Chicago area could see strong-to-severe thunderstorms Wednesday, with watches and warnings already active.

The Chicago area has felt less of an impact from the Trump administration’s National Weather Service cuts than offices in the Quad Cities and downstate Lincoln.

Wednesday will be another hot and humid day with highs in the lower 90s. Showers and storms are expected to move in during the afternoon and evening, some of which may become severe. The greatest risk with any strong to severe storms on Wednesday will be damaging wind gusts and heavy rain.

In parts of Chicago, flash flood alerts rang Tuesday, warning of dangerous conditions as cars were stranded and submerged on highways and water rescues were conducted, but how much rain actually fell across the region and how fast did it all happen?

ABC7 took a closer look at how the tragedy led to the development of the city's Office of Emergency Management and Communications, and why it remains critical today.

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Most of the Chicago area will see a pleasant Sunday, with sunny skies and seasonable temperatures, but some suburbs could see a bit of rain.