Roadways were slick and messy, and flights were being delayed or canceled as snow fell across the Chicago area through Sunday morning.

The snow that started midday on Saturday, Jan. 24 continued overnight into Sunday, blanketing Indianapolis and the surrounding area with at least half a foot of snow.

Residents across the state are reporting as much as 17 inches of snow as of 9 p.m., with snowfall expected to continue, albeit more slowly, through at least midnight and likely into the early hours on...