CHICAGO -- A high wind warning has been canceled for the Chicago area, but the National Weather Service said winds may still be dangerously strong with gusts as high as 50 mph in some places.
The area had been under a warning until 8 p.m., but around 11 a.m. the weather service downgraded it to a wind advisory. The weather service said the high winds could cause property damage and make travel difficult.
The Skydeck on the 103rd floor of the Willis Tower has been closed temporarily because of the high winds. Weather has led to the closure at least two other times this year. It was closed on Feb. 19 and Feb. 24.
According to ComEd's outage map, more than 17,000 customers are without power. According to NIPSCO, more than 3,700 customers are without power in northwest Indiana.
For the latest weather updates, go to ChicagoWeatherCenter.com.
The Chicago Tribune contributed to this report.