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Story summary
- The Chicago area is under a Winter Weather Advisory for Cook and eastern Will counties until 4 p.m. Saturday.
- Lake-effect snow has created hazardous driving conditions, with snowfall totals up to 4 inches in some areas.
- As of Saturday morning, 91 flights were canceled at O'Hare International Airport due to the weather.
- A winter storm warning is in effect for northwest Indiana, where accumulations could exceed a foot.
- The snow is expected to taper off by late afternoon.
