CHICAGO (AP) — The National Weather Service in Chicago has issued a tornado warning until 4:30 p.m. for Lee County and southeastern Ogle County in north central Illinois. The weather service says people in that area should move to an interior room on the lowest floor of a sturdy building.
Meteorologists are warning about the possibility of a weather event called a derecho, which is a storm of strong straight-line winds.
Officials in other parts of northern Illinois are urging residents to listen for weather warnings.
Naperville city staff is working on an interactive map showing flooded streets for the city's website. Naperville crews will remain on stand-by throughout the night monitoring the latest forecasts.
Wednesday night's White Sox game against the Toronto Blue Jays was postponed in anticipation of bad weather.